Tuesday, December 29, 2015

Something you should know about solar power system

First, what is PV? It is a term used in the solar industry referring to photovoltaic. This system is specially made for a house and generates electricity with the solar panels in it. It is part of distributed solar power generation which includes residential and commercial solar power generation forms. Commercial one mainly refers to those systems installed on commercial buildings like office, school, factory and other kinds of buildings. By adopting this, electricity can be generated inside a house and doesn't have to depend on the local utility grid any more. Currently they can be divided into three groups: grid-tie, off-grid and hybrid systems.



The grid-tie system is now the most popular one among the three, and its advantages are most obvious. It can keep supplying electricity to your family all day long without a pause, making sure your house will never meet blackouts unless the utility grid fails. It is often cheaper than a system which has storage batteries, which often cost much. This makes an off-grid system disadvantageous, but people living in remote areas can use it to drive away darkness. 



The second feature of the grid-tie system is it cannot only help save money, but also it can earn money from the utility grid, for your unused electricity will be fed back to it, which will pay you according to how much electricity your system feeds to it. Besides this, you can also get incentives from the local government if it approves your system. The best functional system is the hybrid one, which integrates the features of the two former ones. Therefore, it is connected to the grid and also has storage batteries. The most prominent disadvantages of it is that it costs too much.



solar pv inverter
 
Among the three systems the most important components are solar panels used for generating electricity and PV inverters used for converting direct current into alternating current. And so they are the most important components. In addition, if the system is an off-grid system which needs batteries for power supply when it is dark at night. Without them, the system would be discarded by users. So, they can be one of the most important components in such a special PV system.



When installing solar panels, you should know that these things should be installed on your rooftop where rich sunlight reaches everyday, and they should be adjusted to certain angles so as to absorb the most sunlight to generate electricity. If your roof has no enough space, you should consider buying highly efficient ones. Before buying PV inverters, you should make yourself clear what types are what you really want and are most suitable for your system. 


Usually people buy string inverters, but sometimes they buy micro inverters because they are more efficient but more expensive. When you maintaining the system, you don't have to worry too much, because you mainly need to clean off the dust on the solar panels three or fours a year in common conditions. But if it snows too much and your panels are covered with thick snow, you will have to be more diligent. The inverters don't require too much time for maintenance as long as you install them in dust-free and moisture-free places. In fact, micro solar inverters are usually installed under solar panels.


It depends on your choice. On average conditions a family only needs a 3 to 4 kW system, which generates about 4,000 to 5,000 kWh of electricity each year. A few families may need a bigger one. A 5 kW system might meet their needs, for it can generate about 6,000 kWh of electricity each year.

Monday, December 21, 2015

The development of solar power systems - from the earth to the moon

Obtaining home solar power can be one of your wants if you want to conserve your funds on electric power expenditures and want to do a little something superior to the earth. Given that it is a thoroughly clean energy and you can use it as a lot as you want devoid of destroying the mother nature, it is advisable to discover on the use of home solar power.


At the instant, this style of power is still an pricey in comparison with other energy resources. This is simply because the system is still not truly effectively-recognized and the tools is still pricey. It is believed that the cost of a new solar power panel will get started from a few thousands bucks to a hundred bucks relying on the dimension of your property and the reason of the use of this style of power. Even though I have reported that, I have to emphasize that the cost will be greatly decreased if we make the system by ourselves.


Is it possible to make your personal home this sort of system? Of course, it is. There are a lot of strategies that you can establish solar panel which is the instrument for collecting energy from sunlight. There is some data that you can buy inexpensively in buy to establish your personal panels. 


The superior news is that the components essential can be ordered from the local components retailers. And the approach is rather quick. You can complete the manufacturing inside of 2 days. Aside from, the cost of the manufacturing is in the assortment of just a few hundred bucks. This is why we phone it affordable solar power.


Constructing your personal panels in buy to offer you affordable energy can be 1 of your objectives. You don’t have to invest a lot and can still be able to enjoy the conserving on your energy expenditures.



solar power system



A boy in US has used powder from a local quarry to simulate moon dust as he plans to develop a renewable solar energy system that could be used on the moon.


The American Society for Civil Engineers has invited Bonanno to explain his research at the Earth and Space 2012 Conference in California this weekend. Using basalt from a quarry on the central coast to simulate moon dust, he has developed solar thermal energy blocks that are lightweight and easy to transport and store.


This is crucial to provide a constant source of power in an environment of extreme temperatures that range from 123 degrees during the day to minus 233 at night.


"The lunar environment is quite a complicated place. There is no water on the moon, and there is a very large temperature variation between night and day, lots of radiation, lots of meteorites," the Sydney Morning Herald quoted him as saying.


"You don't have solar power during the day and don't have sun during nighttime, so you need a way to store heat. Current methods involve high-temperature concrete to generate electricity or heat during the night so they have a continuous supply of energy, or using liquid salts," he said.


Bonanno's method proposes using lunar soil rather than terrestrial materials to make the exercise more economically viable and more suited to the environment.

Monday, November 30, 2015

Micro solar inverter is the revolutionary development of the pv industry

In recent years, solar power has become completely modular, that is good news for potential system owner. In ancient times, it is necessary not only to buy a solar cell module, but the battery is good. This greatly increases the cost of your basic system. In 1991, First Solar SMA Solar Technology (the world's largest solar energy equipment company) production of "grid inverter." 


Solar inverter is still the key, all the solar projects. Due to many reasons, Chinese PV industry has been in a cold winter. For this, Chinese government has published many detailed policies and regulations. Chinese PV plants have sprung up. As the main part of the photovoltaic plants, PV inverter, especially the micro inverter, due to their large power amount, longer life and easy installation, have been favored by PV companies.






omnik micro M300 solar pv inverter

The DC main transit of micro inverter is to exchange from a single solar module and every single solar panel module has equipped with inverter and converter function. Every module can do Separate current conversion so as called micro inverter. Micro inverter can achieve the maximum MPPT, which is the advantage superior to central inverter. Then, the output power can adjust by the output power monitored by modules to maximize the output power.


As before, many inverter suppliers have to spend much time explaining the advantages of micro inverters and they also recognized, but many customers still beat a retreat due to the policies. With the publishment of national policies, the market of micro inverter has a good market prospect.


Speaking of centralized inverter, many domestic customers have realized of it. The centralized inverter has few advantages in distributed power projects. And the shortcoming, such as small power amount, short life and inconvenient maintenance, will heavily affect the system stability, which may cause the benefit loss of investors.


During the tough time of PV industry, the relevant companies will be like Phoenix Nirvana and the micro inverter may bring the whole industry a rebirth. The time to Ignore the power generation, power plant life, malicious competition from cheap has gone. This is the great fortune of the photovoltaic industry.

Sunday, November 15, 2015

Solar pv inverters in China's booming market

The most significant way to reduce greenhouse gas emissions is the use of renewable energy, green energy generation including the use of renewable energy sources such as solar, wind, air and hydro power generation, thus reducing carbon dioxide and other harmful emissions greatly.


PV inverter integrated energy storage device availability has increased significantly, which helps resolve among renewable energy industries for effective load management growing demand, because the energy storage device to ensure the continuous supply of power, and to minimize interruption, load management to become more efficient, thereby increasing the reliability of the grid.


Chinese suppliers are doing the main beneficiaries, with full occupation of the domestic enterprises for the second consecutive year the position of the top 10. According to IHS report, the growth of China's PV inverter market more than 100% last year, domestic enterprises occupy the top of the charts. Market research, said the explosive growth of the inverter sales in China last year saw revenues mushrooms 亿 2012 from US $ 4 to US $ 8 billion.



solar pv inverter



"Caused by low local companies highly competitive pricing, highly complex business environment and lengthy credit terms obtained either from the success of a large share of the market to stop them, or forcing them to focus on other areas," IHS said. However, IHS said that growing demand will generate strong growth in the coming years, China PV inverter market, shipments are expected in 2018 will reach 18GW.


China has established the goal of distributed photovoltaic 8GW, 2014 IHS said that although a slow start means that only about 4GW will get built, distributed system, the inverter will become an increasingly important producer of market, prompting steering low power inverter.


"After the huge mounted utility-scale projects ground several years rapid growth in remote areas of the country, China has begun to pay more attention to the development of high power demand and distributed rooftop solar field," said Frank Hsieh, senior market analyst PV IHS.


"Although the share of small string inverters will occupy a growing market, IHS predicts that large centralized inverters remain the mainstream of utility-scale PV systems in China, due to its lower upfront costs and less connection point, "Xie end. "High-power inverters are expected to account for 80% of shipments to these systems by 2018."

Monday, November 2, 2015

Different inverter price according to the specific circumstances

When people decide to buy a product, they must first know of these products and think the price is right or not. Many people think that buying a solar inverter  is a good way, a lot of people want electricity companies to develop their own, to achieve this goal, we must put their eyes on inverter prices.

For those economically developed, of course, hope to get what kind of quality and reliable products, but the economic situation is not very satisfactory, which seems to be an aspect of their own to choose products Most people still think that only those prices more affordable products is their best choice, so the inverter naturally into people's lives.


Inverter type of people divided into many types, different types of products are different performance, some products even if the same name, but they have the material and performance are some differences exist, the economic situation is better for those companies, we can choose those who After all, a little higher priced products, high-quality, Grohe cost itself has been well protected, as well as people's economic situation not very ideal, there is no need to have to buy the expensive prices of these products, as long as you choose to brand, so the solar inverter benefits also can meet people's needs, but, overall, the price of solar inverter is suitable for most people.



 solar pv inverter



Produced by the production technology advances of this product, especially in the past few years, research and development, it has been committed to the technology, then, the annual rate of return so many people see a new hope, because the number of shopping malls Product So many will be in control of their own price level, this phenomenon is that people want to see. Therefore, objectively speaking, the inverter's price is acceptable to all people, even bought large number of these products, we also will not affect their career development.


Speaking of the drive, there will certainly be a lot of people think it is affordable, it is because the production of ultra-high technical decisions, the inverter is hard work behind the benefits of many researchers, regardless of their economic development situations good or bad, as Just choose the right products, then their career can be sure to get good protection.

Monday, October 19, 2015

How to make cheap solar power generation system

Get home solar power can be your needs, if you want to save money on your electricity consumption and want to do a little something is better than Earth. Since this is a thoroughly clean energy, you can use it as many times as you want devoid of destruction of nature, it is best found in the use of home cheap solar power.


Create your own home solar power system, and even has its own production costs gained more additional benefits. Retail solar energy devices can operate as countless hundreds of dollars. Their own home solar power technology, designed for a very small pair of hundred dollars.


It is believed that the new solar panels will cost thousands of dollars to get started a hundred bucks rely on size of your property and use the power of the reason this style. Although I've reported, I want to emphasize that the cost will be greatly reduced, if we do through our own system.


There are some data that you can buy cheap buy to build your personal panel. Excellent news is indispensable component parts can be ordered from local retailers, but this method is very fast. You can do two days of production. In addition, the cost of manufacturing in just a few hundred dollars varieties. That is why we call affordable solar electricity.






 solar power system




Solar power is not a block remedy the latest alternative energy sources, but even now in the cost of energy and the success of the phrase is the most feasible way.

Customers build their own panels to provide you with affordable energy can be your goal, you do not have to invest a lot can still be able to enjoy savings on your energy bills.


If you want to build your own DIY solar power system that you may or may not have been told the advantages of huge development with your own home solar power system that occurs varies. If you're sitting on the fence trying to choose, if you manufacture your own solar energy, there is a glimpse at some of these benefits will greatly exceed might help you get your ideas.


The most important advantage of household solar power generation system comprising: a retention money: Solar energy is free, in the sense that, once you have your system installed no further price, as long as you want, when you want a lot of use.

Green: This variety is very helpful power green, which means it does not set a damaging impression on the way. Solar energy is energy derived from sunlight collected, and for these types is a renewable and non-destructive energy it provides a variety of shocks over the outcome of any damage to the environment.


Go off-grid: use of solar energy in your home, you can minimize or totally avoid the use of energy drawn from the grid, which means you will not be in government policy, taxation, customs duties' or rationing. Going "off the grid" Another benefit is that you do not have more time to power problems.

Monday, October 12, 2015

The reward of solar power inverter

Solar photovoltaic systems, namely solar panels and the inverter output is proportional to the solar energy to generate power from the sun. This energy is instantly converted into electrical energy, can be used in the home or business. If the solar system produces more than appliances need that surplus is exported to the utility grid. If you are lucky, for some economic return, but for most solar customers next to nothing! This means that, unless you are using solar energy, because it is your production "given away" to the grid.


By increasing the local excess energy of this excess capacity to store it is needed, the inverter can manage the flow of power to ensure that you maximize your free solar energy, instead of wasting a "gift" to the grid.


Typically, this will be the first to use solar power, storage remaining, the use of stored energy during the night, if there are cheaper off-peak tariff - partially charged batteries at off-peak times. Some systems have a wisdom connected to the drive if the weather forecast the night before and decided to battery power from the cheap night rate charged or the following day from the sun to charge.


 solar panels



If we can prove, with real economic significance by using the energy generated by solar panels a day, so that the solar system will be enhanced. 99% of the domestic inverter fans and subway lights, may be television, but not for AC or refrigerator. So, if we started using fans, lighting almost entirely on solar energy, if it makes economic sense, equivalent to 2 - 3 years the return on investment should be good, we can spread the use of solar power in the country.

If the electricity consumption of the site and reduced access all the electricity from the panel, it will give you about 8--10 years to recover the investment. This high return is due to produce excess electricity to the grid can not be output to the higher export tariffs in Germany / UK / Spain / USA, general residential tariff low payback period of 3--5 years.


Although this is a good investment considering the very low O & M compared to replace the inverter battery trouble every now and then. In addition, power outages occurred mainly during the day time, therefore, the solar photovoltaic power generation can provide continuous supply has not run out of battery. So, effectively, you might last all day + 4 hours during the day, at night the battery supply + PV supply.


I think it is fair to say that the average income of families who can afford to have a spare battery inverter, can afford solar photovoltaic, if it provides some significant benefit more than business as usual. Challenge service providers face is to this benefit. This may be by economic interests or lifestyle or zero maintenance, fuel costs and other aspects no what these households click will be an interesting observation.

Saturday, October 10, 2015

Solar inverter efficiency analysis

Solar inverter efficiency means that as the demand for renewable energy, solar inverter market  is growing, and these inverters require high efficiency and reliability.

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Solar PV inverters general block diagram, there are three kinds of inverter options. In a series of connected sun shining solar cell modules, each module comprising a series string of solar cells. DC voltage produced by the solar cell module is a few hundred volts, the value is determined by the lighting conditions, the battery temperature and the number of modules to determine.


The main function of the solar inverter is to convert DC voltage to a stable value. This function is implemented by the boost converter needs a boost switch and boost diode.


In the first structure, full-bridge converter separated its boosted. The role is to provide full-bridge converter isolation. The output of the second full-bridge converter side for the first full-bridge converter converts the direct current into an alternating voltage. The output is filtered by the AC grid before an extra double contact relay switch is connected to an object to provide safe isolation in case of failure and isolation from the grid at night.


 solar power system


The second structure is non-isolated solution, and the AC voltage generated by boosting a DC voltage directly. The third structure is using the power switch and power supply integrated boost diode and AC generating private topology functional, although the conversion efficiency of the solar panels is very low, it is important to make it close to 100%.


In Germany, the south-facing roof installation of a 3kW module can generate about 2550 kwh of electricity annually. If the inverter's efficiency from 95-96%, so it's able to generate additional annual 25kWh. The use of additional solar modules to generate 25kWh electricity will take up the inverter prices. Since the cost of solar inverter will not, if efficiency is improved, from 95% up to 96%, so this is an inevitable choice, investment and efficient inverters.

Thursday, October 8, 2015

The advantages of micro solar pv inverter

I think, in the use of micro-inverters will be a huge advantage, using a centralized DC inverter, especially for residential installation. When and if they come up with a suitable DC arc fault protection, it will most likely be complicated and expensive and thus negate any cost advantages central inverter may have?



I have installed both traditional and micro-inverter and residential installations it is a "no-brainer", micro-inverter to win. Another advantage not mentioned: ground-mounted system, say a single-axis trackers or can be easily accessed from the ground a fixed shelf, we need completely surrounded by fencing array, if you use a DC inverter, is not the case an AC micro-inverter.


String inverter manufacturers are working hard to meet the new standards - Gozuk included. In fact, we have several tests throughout the United States. Although the price of PV systems is always concerned with the problem, which is too early to tell what the impact will be significant ROI, the string inverters are usually cheaper than the millionth lot of it, so I do not want to make any speculate on the increased costs.


Of course, if we are to pick up to the PV array and inverter transformer, then it would significantly reduce the chance of arcing in PV systems with built Riise detection circuit. I believe, will be addressed in future versions of the code.






 micro solar pv inverter



Reliability of the inverter is a problem though. The string inverters, we are using a well-established and has many years of performance verification, micro-inverter is still doubtful, since the reliability and assurance are two different things, although they are a leader, a lot of people buy them I want to look at risk assessment.


In general the wiring can be more easily understood by the basic homeowner must be based on the size of the string inverter output board, it is not necessary to micro-inverter, there is the size and layout is not necessarily with the micro-inverter the associated costs.


Cost analysis is still important. Our engineering analysis does not charge our system, because we do not do the roof-mounted systems. All of our systems are basically the same, the only change the inverter size.


For example, 3.5 kilowatt solar homeowners, it is exactly the same wiring and the inverter is set for all the owners to install. Wiring, string size, the DC circuit breaker, AC switch box are the same. In this particular case, from the DC breaker box wiring is normal ROMEX underground pipeline to the inverter, a combo box should be micro inverters, really I do not understand why there is a price advantage wiring micro-inverter device.

Wednesday, September 23, 2015

Real installations for roof solar

The rooftop solar PV need to take off, now and not later. Private households who can afford have, can occupy rooftop solar power in their homes who consume a greater extent on. Government subsidies is only one way and method by which you can provide with initial costs and payback periods.


At the same time, whether it is safe to place in every home is the need to study the issue. Solar photovoltaic array, its efficiency should be set up on the roof to provide enough power only when it is placed in the solar radiation can be used for at least 4-5 hours.


In siting customer-friendly way should be given priority. Otherwise, if any one of the requirements of solar photovoltaic roof and were allowed to return on investment may be a worrying factor. If if allowed to regulate the flow of electricity in rural households, if not in the strict supervision of the national electricity board, the service seems to play some of our private bank loans to customers who will be large-scale solar park dedicated player.


 solar energy




Its better affordable personnel may be provided with solar energy in the initial stage. Secondly, when it comes to rural electrification, without damaging the ecological balance, and solar power plants set up there can be generated and supplied to the grid for distribution.


I think there is electricity from rooftop solar installations produce a number of practical issues related to the solar power generating device:


Our low-voltage distribution network is unstable and very often it off.

All the grid feed solar inverter works following cable available frequencies.

In the case of the back of the shutdown is to follow them? Maybe they also have to shut yourself.

If it does not properly followed and the roof goes into the power grid, the wishes of the little guy in the entire grid load.

Suppose, the line was closed for repairs, it was back to the grid, who will protect service personnel from the back of the voltage.

Like this, there are many technical problems to be solved: then only it can be achieved.


I think the best option is passed on from generation point or stored in batteries that use at night with the inverter. Management must have this power generation efficiency from solar panels to the final end. Who better to do it with wisdom, you will be able to provide all-weather supply canyon free. Therefore, we have developed a very high efficiency solar inverters for different applications.

Monday, September 21, 2015

Strengthening promote the development of the inverter market

According to IHS statistics, the growth of China's PV inverter market more than 100% last year, domestic enterprises occupy the top of the charts. "China PV Inverter Market Report, 2014" market research firm, said the explosive growth of the inverter sales in China last year saw revenues mushrooms 亿 2012 from US $ 4 to US $ 8 billion.


Chinese suppliers are doing the main beneficiaries, with full occupation of the domestic enterprises for the second consecutive year the position of the top 10. In the top of the list for the fourth consecutive year the sun power, with a 30% market share, in 2013. Other top five vendors were TBEA Xinjiang New Energy, Emerson Network Power, Chint and Kstar.


But in fact all these enjoy less than 4% of the market share of each IHS said the description of the inverter facing Chinese manufacturers of production and management difficulties. Resulting in fierce competition in the low-priced local companies, business environment and highly complex or lengthy credit terms from success obtained a large share of the market to stop them, or forcing them to focus on other areas.


However, IHS said that growing demand will generate strong growth in the coming years, China PV inverter market, shipments are expected in 2018 will reach 18GW.


Although the utility-scale PV projects accounted for 93% of the inverter revenue last year, IHS said distributed PV inverter market will become increasingly important producers.


China has established the goal of distributed photovoltaic 8GW, 2014 IHS said that although a slow start means that only about 4GW will get built, distributed system, the inverter will become an increasingly important producer of market, prompting steering low power inverter.


After the huge ground-mounted utility-scale projects rapid growth years in remote areas of the country, China has begun to pay more attention to the development of high power demand and distributed rooftop solar field. This inverter for smaller growing demand will lead to modifications in 2014 and 2015 photovoltaic inverter supplier ranking.


Although small string inverters will occupy an increasing share of the market, IHS predicts that large centralized inverters remain the mainstream of utility-scale PV systems in China, due to its lower upfront costs and fewer connection points, high power inverters are expected to account for 80% of shipments to these systems in 2018.

Tuesday, September 15, 2015

More interested in micro solar pv inverters

In recent times, we have seen an increase in our customers interest micro pv inverter . Micro-inverter is similar because they are the AC power generated by the solar module can be used in the home, and fed into the public grid solar generated direct current of conventional inverters.


Many people believe that micro-inverter is new, cutting-edge technology, they are not, micro-inverter technology can be traced back to the 1980s. Micro-inverter manufacturers have agreed to go into business, and then they went out of business after several years of big companies or the buyout. Micro-inverter commitment, because a single inverter for each solar cell module, the system as a whole will have a better performance. 


However, the micro-inverter is connected to the back of the rather conventional inverter modules each solar module, also known as string inverters, is installed on the ground, usually in the home and garage is different from that of a micro-inverter the conventional inverter drive for about 30 single solar cell module conversion efficiency. Therefore, the use of micro-inverter, 30 micro-inverters will be installed at the solar array roof of a typical family.


Micro-inverter supporters believe conditions degrade the performance of the system, such as a solar cell module coloration differences, between pollution and electrical characteristics are reduced or minimized, since the solar cell module is only such conditions will be affected and all other The module will operate their best to increase the overall efficiency of energy production. 




micro solar inverter


There is no basis on micro-inverter, data compiled dozens of actual real-world systems, offer than the traditional string inverters calculate the increase in energy harvest. However, in rare cases, micro-inverter is in a string inverters a better choice, as in the roof space of the house there are a number of different directions and an inverter MPPT tracker will not work or when the system is materially shadows. Otherwise, it is the author's micro-inverter, so as to avoid comments.


In dozens of system we have installed and micro-inverter in the customer's requirements, have had inverter failure. This makes sense, why we do not want to use this technology for all customers. Think about it, micro-inverter is an electronic device, which are mounted on the back of a solar module temperature exceeds 150 degrees.


Now, when a micro-inverter fails, it is not an easy fix, technical staff to get on the roof, tearing down the entire array to the inverter array fails, install a new micro-inverter, and re-install the system. It sounds like a good idea? It is disturbing to see that some of our competitors have to offer micro-inverter standard. 


In about two years, they will spend most of their time doing service call failed system. This may lead to the demise of their business, then we will have to serve these isolated systems. I do not care, but definitely not good for the local industry as a whole. If you're a homeowner looking to the sun has not been micro-inverter.

Monday, September 14, 2015

The implementation and development trend of solar inverters

Our sun is a naturally occurring nuclear reactors, solar power currently accounts for only four tenths of one percent of the total energy consumption in the United States, although the rapid decline in solar technology and increase costs, but we have to take advantage of the sun Energy-rich capability is on the rise.


Photovoltaic solar panels produce DC power. And DC power, electron flow in one direction around the circuit. This example shows a battery-powered light bulbs. Electrons move from the negative electrode side of the cell, through the lamp, and return to the positive electrode side of the cell.


With AC power, the electrons are sliding, periodically reverses direction, much like a car engine cylinder. When the AC power generator to create a coil magnet is screwed next. Many different energy sources can "turn the handle" this generator, such as a gas or diesel fuel, hydroelectric, nuclear, coal, wind, or solar energy.


AC power is selected as the U.S. power grid, mainly because it is a cheaper long-distance transmission. However, the solar panels to create a DC power. How do we get DC power into AC power? We use an inverter .



solar inverter development 





Solar inverter with DC-powered solar arrays, and use it to create alternating current. The inverter system of the brain. With DC to AC power inverter, they also provide ground fault protection and system statistics, including voltage and current AC and DC circuits, energy production, and maximum power point tracking.


Micro inverter launch is the biggest technological change, one of the photovoltaic industry. Micro-inverter is optimized for each individual solar panels, rather than the entire solar system, central inversion do. This makes the maximum potential of each solar panel to perform. A solar panel will not drag down the performance of the entire solar array, rather than the weakest link in the optimized central inverter.


Sunlight the solar panels on the roof, the panels energy into direct current, the inverter flows. The inverter converts the DC power to AC, then you can use it to power your home.


To be the growth of solar power is expected to double in the next two years, solar energy is the real wave of the future, the sun belongs to everyone, we are committed to unlock its enormous energy, so that we can all enjoy it provides freedom.

Sunday, September 6, 2015

Solar inverter suppliers - how to master the sales tools and product prices

As the solar inverter has a very wide range of applications in the market, so it is the development of the whole industry is relatively large, more intense competition in the industry, suppliers formed a more intense market competition, the solar inverter suppliers usually sales activities, and ultimately gain a competitive advantage through the corresponding sales.


Market development and implementation of product strategy solar inverter supplier of the most important marketing tool in the sales process, which is related to key strategic marketing activities that require vendor attention. Competition in the market, often because a good reasonable price policy, you can make the product to occupy the market, to obtain a relatively short period of time leading market advantage, which is an important means of Avery after the sale.


In addition to pricing strategy, sales and marketing of solar power generation in the inverter manufacturers also need to strengthen product promotion activities. In general, solar inverter manufacturers often promote some products and suppliers can rely on manufacturers to promote propaganda, propaganda can effectively save costs, but also can effectively promote themselves, will help enhance the market competitiveness.



 pv inverter manufacturers 



Sales process, consumers and customers tend to be the market price of the product concerned, a frequency converter products too. Meanwhile, the market price tends to affect the efficiency of product sales activities and fluency, the value of the solar inverter supplier of information products very much, but in order to ensure product sales, vendors usually selling prices for certain some adjustments.


Market demand and changing developments and market changes, and solar inverter suppliers need to be adjusted according to changes in product sales prices of the market. This is because the market demand is the ultimate goal, and household production, the need for any productive activities to meet the needs of the market, according to market demand to adjust the sales price can be effectively improved product sales, has more significance to the development of the industry.


Inverter Suppliers also adjust the products according to the specific circumstances of the market price of solar inverter products. This is because the production and processing of different technologies affect the inverter on the different products, these products and therefore have different performance, the price of the products is not the same as the natural level.

Sunday, August 23, 2015

Emerging micro solar inverter technology

Discussion on solar energy systems tend to focus on itself, in the system the most obvious part of the solar cell module, and often overlooked another important part of the hardware is an solar inverter . The inverter is the solar panels into AC power of a component, which is home to what can actually use the DC power generated.


Some would say that the choice of the inverter is actually more important decisions than the solar module, since the solar cell module has played under the irradiation of sunlight gathered little "passive" role, while the inverter more actively manage it, while tracking data Record how much power is being produced.


There are two types of inverters: the classic central inverter and the emerging micro-inverter. Which one do you think is better. Central inverters have been used for more than 40 years. Micro-inverter is still a fairly new technology, only in commercial use for the past 10 years. Central inverters are usually installed on one side of the home near the main electrical panel, and micro-inverter is mounted on the back of the individual solar panel roof.


Central inverter required panel is divided into "string" or circuitry. If a panel strings with sun, causing it to lose production, all also affected in the string panel. However, with the micro-inverter system affects only pigmented shade single module; adjacent, unshaded panels still produce full functionality. Each micro-inverter is basically to manage their own independent solar cell module, rather than groups.

micro solar inverter



Similarly, the central inverter power of the entire solar system, and therefore, if the drive fails, the whole system to stop working until the inverter for repair or replacement. If the individual micro-inverter fails, the rest of the system is still working and productive forces.


About Inverter The most common question is about the warranty. Central inverter has a standard 10-year warranty, usually based on the size of the system, cost a little less; however, you can usually purchase an extended warranty. Micro-inverter is equipped with a standard 25-year warranty.


Not all brands of solar panels is compatible with micro inverter, due to its unique technology. It is very important to check with an experienced solar installation companies who can recommend the best system to meet your needs, both in terms of equipment and funds.


Stellar carry a variety of brands of central solar inverters and tingling micro-inverter, and since 1998 has been in the business, supporting the installation of commercial and residential solar energy systems, so we can at the right price with the right financing for home and recommend appropriate enterprise systems throughout San Diego.

Monday, August 10, 2015

Bullish the USA solar development - while the policy is not optimistic

Sharply reduce the price of PV systems in the past few years, but in 2012 and 2014 the cumulative effect of the decision of the Ministry of Commerce is to reverse the trend of cost reduction. If you look back to the spring of 2012, you will find the price of silicon component in the range of $ 0.80 to achieve the forecast price 85 / watt and modules at $ 0.55 to 6 yuan / watt range of analysts do not end in 2014, he said, We are nowhere near $ 0.55 to 6 yuan / W, in the United States in July 2014!


Currently, the cost of making the Ministry of Commerce, the US solar industry about $ 0.18 / W - and probably spend more at the beginning of next week. Now passed to the west coast of Mexico line Chinese module costs $ 0.58 / W. Delivered to the US West Coast same module cost American solar installation $ 0.76 / W. If not for a trade war, we can today buy silicon component in the US $ 0.58 / W or less!


A new report by the US Energy Information Administration forecast, by 2040 the new maximum generating capacity in the United States will come from natural gas and renewable energy. 830,000 kilowatts of new renewable energy capacity is forecast, nearly half are expected to come from PV systems.


 solar pv system




Today, solar energy is the fastest-growing US renewable energy sources, because the report confirms that this will continue to be years and years to come. Rapid deployment of a national solar energy will create thousands of new American jobs and pump billions of dollars into the US economy, and help to significantly reduce pollution.


Equally important, it will also provide the United States are free to decide how their homes, businesses, schools and government facilities to provide power in the future. The report predicts 60 percent in the next few years all new rooftop solar PV installation will be created to save significantly when it comes to future energy costs.


If there is no trade war with China, the US solar industry will be in a great location by the 2016 end of year trade war with the ongoing cost-competitive with grid power supplied to the grid by 2016 cost-competitive in serious danger in. Lost 30% of the solar investment tax credit is set to achieve cost-competitive solar energy industry back years.



Congress of the International Trade Centre provides the solar industry has proven to be an excellent catalyst for many years to allow a significant industry growth and fantastic cost reduction. Now, with the line of sight of the target industry, and the other branches of government action it is frustrating efforts to reduce costs, and could seriously damage the development of the industry forward. It is time for the government to get collective action to solve this problem before it causes irreversible damage US solar industry. I hope that parents solar Obama can lead the effort to solve this problem.

Sunday, August 2, 2015

Focus on the development of solar pv power plant

While most people who have embraced the use of sunlight to generate electricity idea, this particular approach is beginning to receive some reviews, today we look at the development of concentrating solar power plants and photovoltaic power plants, both concentrated solar power plant will have a greater share than that distributed solar systems.


When it comes to solar power generation from solar photovoltaic panels will also help in photovoltaic power plants, whether CSP or PV plant will prevail in the debate has been debated for several years, due to the lower prices of photovoltaic PV LCOE of CSP in years past It is about half the cost, and will continue to do so until 2030.


Solar energy is distributed better account of damage to the environment will provide the same energy is important to compare the same technology is very important. Bird death was caused by an electricity tower, distributed solar is considering PV. In fact, the photovoltaic power generation does not cause the death of birds, often, but still large-scale photovoltaic power plants and distributed relatively very interesting.


solar photovoltaic panels


Of course, the advantage of economies of scale photovoltaic power plants. On a global scale, multi-megawatt photovoltaic power station is to achieve less than 1 euro per peak watt. Largest photovoltaic power plant from the top 50 list of 50 megawatts to 300 megawatts or more can be found here. For the price of private housing investment may be a factor 1.5 higher, but in the field of digital capability has also been doubled recently.


On the other hand, the photovoltaic power plant without storage CSP plants like no challenge to its power grid produced a large amount of power is fed to the storage surface in. In this scale it on the electricity market competitive energy prices are often lower than the production cost. Each household can consume on their own, and may the subsidy, in order to obtain adequate remuneration for their produce electricity, but the utility to do so.


If the distribution of photovoltaic power generation is not evenly distributed, network integration issues will arise earlier, which should deal with the case-by-case, distributed PV can easily reach the size of a large power plant, but the optimal solution is not focused on having as many PV better. Renewable energy needs a clever mix of, among other factors, including solar, wind, biomass, energy storage will be necessary to overcome intermittent renewable energy production seasonality legacy.

Thursday, March 12, 2015

what is a pv inverter or a Grid-tie solar inverter

A solar inverter or pv inverter efficiency is a critical component in a photovoltaic system and also is a type of electrical inverter that is made to change the direct current electricity from a photovoltaic array into alternating current for use with home appliances,off-grid electrical network and possibly a utility grid. Solar inverters have special functions adapted for use with PV arrays, including maximum power point tracking and anti-islanding protection.


Solar grid-tie inverters are designed to quickly disconnect from the grid if the utility grid goes down. This is an NEC requirement that ensures that in the event of a blackout, the grid tie inverter will shut down to prevent the energy it produces from harming any line workers who are sent to fix the power grid.






omnik-hybrid-solar-inverter



Grid-tie inverters that are available on the market today use a number of different technologies. The inverters may use the newer high-frequency transformers, conventional low-frequency transformers, or no transformer. Instead of converting direct current directly to 120 or 240 volts AC, high-frequency transformers employ a computerized multi-step process that involves converting the power to high-frequency AC and then back to DC and then to the final AC output voltage.


While there have historically concerns about having transformerless electrical systems feed into the public utility grid since the lack of galvanic isolation between the DC and AC circuits could allow the passage of dangerous DC faults to be transmitted to the AC side[10]; Since 2005, the NFPA's NEC allow transformerless inverters. The VDE 0126-1-1 and IEC 6210 also have been amended to allow and define the safety mechanisms needed for such systems. Primarily, residual or ground current detection is used to detect possible fault conditions. Also isolation tests are performed to insure DC to AC separation.


Many solar inverters are designed to be connected to a utility grid, and will not operate when they do not detect the presence of the grid. They contain special circuitry to precisely match the voltage and frequency of the grid. See the Anti-Islanding section for more details.

Monday, March 9, 2015

Solar cells can become more cheaper for us

Researchers have found that more and more types of thin-film solar cells for the manufacture of giving it a growing role in the ambient air, more and more types of ambient air for the production of solar cells to give it a growth role. This may allow the manufacture of solar cells significantly cheaper, published in Materials Chemistry.


Because the harvest of light found its application for electricity in 2009, applied research of solar cells has been skyrocketing. Manufacturing technology being developed around the world to enhance their power conversion efficiency. By making the material easier to mass production OIST research gives perovskite solar arm and then shot.


Previous studies have concluded that exposure to perovskite films to ambient air harmful because water and perovskite, which degraded over time response. Therefore, it was felt that the material had to be prepared to use heat in the water environment is called annealing.


solar inverter manufacturers





During 45 minutes of annealing contained OIST researchers to investigate the impact of water on the formation of perovskite at temperatures between 105-125 degrees Celsius. They grew up in a perovskite, and has been proven to work better solar cells. Then, they compared the perovskite thin film is formed and it is formed in a nitrogen atmosphere in humid air, and the film was found to improve the growth actually receiving a lead larger than the grain size is usually carried out in the presence of moisture. The film growth is slow, so that large particles can be formed.


Larger grains of perovskite solar cells more efficient. Highest efficiency achieved by studying 12.7%. The other teams have achieved higher efficiency results in OIST ensure future industry does not have to invest in expensive climate control mechanisms to keep moisture down to one millionth. Unrelated to the cost of air annealing.


Overall, 12.7% of the efficiency by no means limit this manufacturing technique, and it is possible to obtain larger grain size. Although the global research and development to continue to improve the efficiency of solar cells, these results may provide a way to boost the industry.

Sunday, March 1, 2015

Important tips on installing a solar pv inverter

At the point when introducing a sun based pv inverter ,find out about basic establishment lapses, you can spare builders time and cash, and to guarantee a superior sun oriented photovoltaic frameworks. The accompanying tips can help you introduce protected and effective. 

Keeping in mind the end goal to guarantee the ordinary operation of the sun based inverter, establishment circuit tester must guarantee that these are introduced as per its command and locale of the producer's necessities. 

Comprehension of the neighborhood power organization's organizing needs. Many free run utility in the United States, each with its own prerequisites for interoperability. As the increment popular for photovoltaic frameworks, negative impacts, for example, makeshift over-voltage feeder on the network can be normal. This may bring about an unsafe circumstance and precariousness on the network. Comprehend what is anticipated from open utilities, to meet all the prerequisites before the establishment of interconnection assentions. 



solar inverter manufacturers





Be careful with every sunlight based inverter producers have introduced the inverter cautioning Most manuals are not plainly characterize what the saying signifies "out of direct daylight." "Out of direct daylight." However, it is normally deciphered as alludes to the inverter ought to just be introduced in the undercarriage on said inverter/ hotness sink is minimized to direct daylight, for example, a shade structure in a north-bound divider or lower. 

Don't befuddle the GEC and EGC. Does not require an inverter transformer ground terminal conductor. A GEC is obliged just when the DC welding jumper exists. Since the transformer inverter operation by the buoy exhibit, the show is fused either to the ground, and along these lines, no inside holding jumper exists. 

Be cautious when altering the body. When it is important to lessen or expand existing Kos extra inverter skeleton, the installer must be clear, "chip control." The solor pv inverter is completely electronic and metal chips or shavings to the presentation of the inverter circuit can result in shortcoming inverter and conceivably perilous conditions, for example, stun or fire. Makers might likewise void the guarantee, if the frame has been adjusted. 





solar inverter manufacturers



When you require additional Coase proposed a suitable course punch can be utilized to place any extra gaps in the skeleton. ABB's TRIO skeleton are outfitted with removable boards, which can be utilized as obliged and reinstall the screws, killing the security danger is evacuated, altered. 

Note that the sunlight based inverter NEMA rating. Some inverter undercarriage agree NEMA 4, which is fixed from a hose to drive water splashes, etc. Introduce the track must see the association and guarantee the proper utilization of the gasket between the connector and inverter rack. Furthermore, to guarantee that the flip side of the course is not arranged in such a path as to go about as a water pipe in the downpour or washing operations, for example, any fluid entering the channel will be directed to the inverter suspension. Most NEMA 4 is not furnished with a channel opening and body into the case water develop, this may lead straightforwardly to glitch on account of high stickiness or different issues.