Thursday, January 29, 2015

The technological innovation of solar cell module

Recently, the solar power system is relatively popular, many families and factories have been installed the system, which includes solar panels, battery modules, inverters, controllers, etc. The efficiency of the battery pack which is a very important part of the  system ,today let's have take a look at what the solar cell technology innovation.


According to Tigo Energy, a manufacturer of power optimizer module level, a string of energy output can be increased up to 20%, by using such a module-level power optimization program. However, a more realistic figure of 3% is recently reported in the United States, a 113 kilowatts systems using embedded with Tigo power optimization technology, Trina "Trinasmart" group commissioned cobalt supply.


By adding a module to the DC power optimizer, current and voltage output can be controlled so that the string current than by the shadow module damage. Further, by limiting the voltage, so that the module is allowed to output to the maximum power point, but less than the open circuit voltage, a plurality of modules can be safely connected to the same pv inverter. Through all the modules in the system for such power optimization, the net energy output can be significantly improved, especially for medium and large-scale photovoltaic systems.



pv inverter efficiency






At the module level integrated electronics can also make the module-level monitoring and individual modules, which can make the module more secure, and cost-effective maintenance remote disconnection of individual modules as needed. All of these electronics, including power optimization, which can be incorporated into the module junction box - making it easier for module manufacturers to adopt the technology.


The concept of embedded Optimizer is not new, and the first such intelligent modules using National Semiconductor's "The SolarMagic" technology being produced in 2010 GESOLAR. However, SolarEdge's technology has proven to be quite popular, now account for 70 percent of the global market component shipments. SolarEdge has also begun jointly with the panel manufacturer, with industry giants such as Yuhui Solar and LDK and other modular integration of the technology.


However, the advantage of module-level power optimization is not limited to these newer intelligent modules. For the system owner wants to redesign their systems or simply to maximize the power of their existing module, power-optimized electronics market may simply up to the existing standard module junction box - for example by SolarEdge courses.






pv inverter efficiency





In a significant development, PV module certification body, TÜV, announced a new certification process to assess the reliability of the intelligence module. The new certification test with the existing standards of reliability testing to produce a series of new test procedures, rigorous testing of AC and DC intelligent modules. Three or more different modules have been tested and certified rating agencies.



This importance of embedded power optimizers and the increasing availability of raised questions about its reliability and pressure standards and certification bodies, their current testing standards apply only to standard modules. In this regard, module manufacturers, and more importantly, the PV power plant operators have recognized the new certification process. If their recognition is any indicator, market growth seem positive affirmation intelligent modules.

Sunday, January 25, 2015

Solar inverter efficiency is the key indicator

Solar inverter efficiency directly affects the entire solar system is a key indicator of the efficiency, the efficiency it is almost always a more important consideration for solar panels. You do not just have one inverter efficiency, it always works. All electric power generated by solar panels before you go through an inverter, you can use your home, or export to the grid, so the extra efficiency, each percentage, you can squeeze out of the inverse change will directly improve performance and return on investment of your solar system.

However, as you might expect, solar inverter manufacturers want their picture in the inverter absolute best light, so when they measure the efficiency, they make sure that all the conditions are in the laboratory apricot inverter efficiency absolutely perfect. As a result, you are unlikely to ever get quotes normative work efficiency in real life.





solar inverter price






Develop any specific inverter efficiency, "real world", the easiest way is to take some hard work in both government laboratories in California and Europe who take it upon themselves to deal with the digital advantage for each the entire load, and an inverter in each of their respective markets, and the computational efficiency is a lot more realistic than the number of manufacturers.

If you want to get deeper into the solar inverter efficiency specifications of fun, you will be ecstatic to hear that my pleasure inverter has not yet begun the efficiency curve. This little-known inverter specifications can make or break the performance of your solar system.

Inverter ambient temperature - in the hot inverter obtained in lower efficiency drops. That is why it should always be installed in a cool, well-ventilated place.

DC voltage into the inverter from the solar panels. This gets pretty technical, so I will not cover here, but if you're a sadist, ask a salesperson what solar energy is that they are optimized, from the DC voltage of the panel, in order to maximize the inverter efficiency. Then step back and enjoy a long silence!




solar inverter price










Impact than anything else, though your high efficiency inverter solar, more the big kahuna is the inverter load. Load of the inverter is another name for the power supply of the inverter as compared to the amount of its rated power. For example, a 1kW inverter running only 800W power inverter at 80% load.

When 33% of your system is running at full power, you will only run at maximum power inverter. Power does not drop very suitable for you to move along a curve to the left you see the efficiency of falling off a cliff. This can easily occur in the winter day, cloudy, etc.

So this is a good reason to be wary of PV companies trying to flog you a large inverter is far more than you need for the panel, the amount of your purchase! From the top curve to be from 30 to 70% of the power output, the curve is fairly constant at about 95% efficiency look.

Thursday, January 22, 2015

You can build your own home solar panels

With the advances in solar technology, home solar power systems are becoming increasingly popular, in which to build your solar panels is a very important step for a solar power system, solar panel is a face.

Build a home solar panel following a few essential steps:

Step 1: Preparation of
Step 2: Create a solar panel house
Step 3: Add a solar cell together
Step 4: Position and fixed solar
Step 5: stamped seal your solar panels


The first thing you need to do is to collect all the material together, once you collect all the material, you can start building your solar panels.

Solar panels are a simple frame house, solar cells will hold. The bottom of the box with plywood and the sides are made of 3/4 "× 3/4" wood. Top box will plexiglass cover glass. If using a 3 "× 6" solar cell, splint will need to be cut in size to about 44 "× 21". This would fit two daughter boards 18 of each solar cell. 3/4 "wood should be cut to size, and add to the plywood with screws to create a border for the panel.





solar inverter manufacturers








At this point, can be cut non-conductive backing and acrylic glass sizes as well. You should also paint the solar panel enclosure and UV protective backing material. Added to the cells together some of the most challenging project, but once you've done a few times, you'll see it is very easy to do.

To get started with this step, you should be solar cells in a non-conductive support, the front end down. Then, you can use a soldering iron, solder, rosin flux pen, and tabbing lines joining each row of cells connected in series.

Once all of the cells in each row are connected together, it is a time for each row into a non-conductive adhesive backing. This is the use of silicone gums. Terminal block before each line should stick to each other in the backing.
Once all the rows are fixed to the non-conductive backing, can be used to connect together the copper line. As with the cell, these lines should also be joining the series.

Front cover and seal the panel, you should test your panel with a voltage meter, and make sure everything is secure.
Once you have completed your test, you are ready to cover the solar panels of plexiglass enclosure, glass and seal it provides weather proofing.







solar inverter manufacturers








As you can see, it is not so complicated to build your own solar panels. But you'll save time and money using proven methods. One of the most expensive components of DIY solar panels are solar cells. By using less expensive solar cell, can significantly reduce the cost of the panel.

Looking for cheap solar cells is the easiest place on e-bay. You may also be able to with your town highway department for damaged cells, the light from the roadside or local solar installation company checked and found a discount or free solar cells. But the best method of reducing the cost of their own so that a solar cell panel in accordance with a detailed guide. You can use, to successfully build your own solar panels on this page, but it takes some trial and error, to spend your time and money.

Tuesday, January 20, 2015

The proper design of the solar panels

Home solar panels are becoming the home landscape in many parts of the country more and more components. Many of our customers call and ask if they should install solar panels at home. Because we sell solar panels, we are happy to say unequivocally yes, but the answer is more nuanced, and our answer is usually yes, "It depends." These are some of the considerations that we usually give them to our customers whether the family should consider solar panels.


There are solar panels for your home. Just because you are going to go home the sun does not mean you have to cooperate. Solar energy can be placed in almost every home in the country, but not every family for solar energy. If you live in the forest, the solar panels will not catch many of the sun's rays. If you live in the city and adjoining buildings cast a long shadow over most of the day in your roof, then the solar panels may not be your home. I have not seen the show a couple of years back, to solve some of these problems, there is a long pole through the peep through the trees concentrated solar energy, but I have not seen this application used. Today, if you have a huge pecan in your roof or any other obstacles, then you might want to consider buying green energy or become a solar energy cooperation, where you do not have to hold the panel on your roof one.




pv inverter price




The beauty of solar panels. Maybe this is my taboo, but there are some facilities that I have seen, so the solar dark circles. If the solar array is not visible from the street, then you should not have too much to worry about. However, if the module is visible on the streets, it is possible that you will have to take into account several issues. If you live in a historic district, it would be very difficult to overcome the Historic Preservation Commission to install solar module is visible from the street. I do not say never, but it will be difficult. If your home is covered by a homeowners association, you may have to be recognized organization. If you need the approval of the association will take a hard look at the design and have some relevance, no matter what you do, this design will simply not be approved.



Home solar panels are increasingly becoming part of the community landscape throughout the United States, they are planted in cities and towns, in the center of the city. Some of the best customers are farmers and ranchers. However, no matter where you live, do not forget to make sure you pay attention to an array of solar installation design. That will be your roof for decades, something you do not want to look bad.





pv inverter price




This means that you should be long-term prospects for the module. We have in our lot, you should consider not only the price, but other blog articles are solar panels made quality argument. Prudent homeowners should not be considered as a commodity module. If you are buying a car, you do not necessarily choose the cheapest. The same module, you want to know the quality and expected energy output. Of course you have to take into account how the module to look at your roof. More parts about solar power system here for you: http://www.omnik-solar.com/products/single_phase_inverter_second_generation .


In addition to solar modules and other solar product specifications, the installer will use, you should ask an array that is if not beautiful, at least not ugly. You want to ask your installer to design a system that will near pride. Architectural design seconds. We are not architects themselves, but you'd think at least one solar company should try to match the roof line. So, if you can not fill all the panels on the roof? Safety and aesthetics, the problem should be considered.

Sunday, January 18, 2015

The high efficiency inverter solar for your home

Solar photovoltaic system is a new type of new energy technology, rapid development in recent years, but also to bring a lot of convenience household electricity, solar home has become increasingly popular. Solar panels produce DC electricity. DC power in one direction by moving electrons, created from negative to positive. It is mainly used in batteries, including the use of basic applications, such as flashlights, are also good to use in a short distance.

Most have run on AC power household appliances and electronic equipment. AC power by moving electrons back and forth between negative and positive terminals generate a sine wave created. AC power advantage is that the voltage can be adjusted so that it is easier to move longer distances, which is why its use in the home.





solar pv inverter





Since the solar panel can produce direct current, an inverter for converting DC into AC power into usable. An inverter to convert DC to AC step to produce a variety of waveforms. The basic square wave inverter, but only a small voltage, so these are just used to run small appliances and light bulbs. If you want to run your coffee pot, this should do fine.

More sophisticated use of the inverter more steps to produce a modified square wave, sine wave or modified, because they can be more generally known, which is an excellent motor, lamps and TV and high power wave Chung, but may cause problems and more sensitive electronic equipment. The solor pv inverter also generates harmonic distortion, resulting in the background hum of audio equipment.

In the off-grid applications, the DC power stored in batteries. The inverter then converts alternating current from the battery into usable electricity. The inverter must be large enough to supply all the appliances and equipment that will run at the same time, and must be able to handle the power surge from clothes and dishwashers, dryers, etc.




solar pv inverter







And inverter provides power to families in need, any excess electricity fed into the grid. They include sophisticated detection equipment to ensure that they shut down the power grid outage detection, or when workers need to work grid tools.

Works grid tied inverters with battery backup same grid tied inverter, as long as the power grid has to, but if a power outage occurs, they will switch the power supply into the home through the battery. When power returns to normal, the inverter switch back to using the grid, while charging the battery.

As you can see, the inverter is essential, solar panels, if any or all of the electricity comes from. Advances in inverter technology is making all the time, the main drawback is the lack of efficiency, because most of the inverter is only 90-95% efficient operation.

Thursday, January 15, 2015

Something about solar power system,especially solar pv inverters

Solar power technology seems very complicated, a lot of detail, but when you consider their broadest level rooftop solar photovoltaic systems, they are actually very simple. Typically, a small-scale grid-connected rooftop solar PV system only has two main components: panels, and Solar Inverter wholesale. Off-grid system is only slightly more complex, with battery as well, so that homeowners can put their lights after the sun goes down.

Drive your heart sitting rooftop solar systems. This requires energy your solar panels produce, and it has changed the form of your lights and appliances can be used. Without it, you run the panel is useless purpose of your home.

Solar inverter also play a role in ensuring that your photovoltaic panels to generate as much power as they can be called "maximum power point tracking," or the process of the MPPT. The solar panel will provide different resistances at different power loads, and resistance, to provide the maximum amount of the amount of power required depends on the temperature and the panel can receive solar radiation level. Through MPPT, the inverter will determine which load is placed on the panel array to provide the maximum power in view of the current situation.




solor pv inverter








Solar inverters are often in the role of the report system performance. This can be very useful to track the return on investment to go solar. Some even inverter hooked to your home wireless network, so you can log in and look at your system from your computer or smartphone to do.

Some systems connect to each panel having a small inverter - this is called "micro-inverters." This can be used in many applications are useful. Each plate has its own maximum power point tracking, which means that the desired loading will be applied to each of the panel to ensure that the maximum power output. This also means that the array of solar panels can be added to or reduced in size over time, with changes in the field of electricity demand. It further means that fewer system offline in case of equipment failure.

There are two main types of inverters, as a large central string inverters and micro-inverters. A standard system will have a central inverter connected to it with all the other solar panel. The use of micro-inverters will allow each solar panel is separate from the next, to minimize shadows caused by the potentially harmful effects of solar photovoltaic systems. These systems have many advantages over conventional systems of the potential advantages of flexibility in system design, safety and financial aspects of the yield. Thus, the growing popularity of such systems.








solor pv inverter






Micro-inverters generally means that they have no moving parts for longer life than conventional inverter. Most manufacturers offer micro-inverters compared with 20-year standard warranty, 5-10 years of traditional counterparts.

Standard string inverters generally by two separate strings. This means that, in a normal 4kW mounting plate 16 comprises, the system will be divided into two groups of 8 panels. The micro system enables each individual solar panels, to be linked in parallel, independently of each other and therefore minimize potential adverse effects of the shadow.

All micro-inverter unit is equipped with an advanced on-line monitoring system that allows end-users and installers in the detailed monitoring of each solar panel from any location with internet access. Users will be able to monitor the generated daily, weekly, monthly and annual electricity power production site in detail.

Wednesday, January 14, 2015

Types and characteristics of solar battery

Solar cells use at night or times required for the solar panel does not produce as much power to provide energy. They are typically used for off-grid systems and network systems or critical load or frequent power cuts. Because they do add a lot of cost to the system, most grid-connected customers will not need a spare battery.

Historically, energy storage battery for solar power generation system is the only type of lead-acid batteries. However, lithium-ion battery technology is becoming a larger storage alternatives. Both types of batteries are able to enter the "thermal runaway", wherein the cell is heated rapidly and can emit a flame, the electrolyte and dangerous fumes. However, the possibility of occurrence of an event, and is therefore higher for a lithium ion, because it has a higher volume energy smaller, you can see more at : http://www.omnik-solar.com/products/omnik_solar_inverter .




high efficiency inverter solar

 
Lead-acid battery technology has existed for over 100 years. Lead-acid batteries are still used in most vehicles; therefore, progress is being made in these cell efficiency and lifetime.
 
Significantly cheaper than lead-acid batteries, lithium-ion batteries. The difference is not small battery, and for the people of these items may not notice a significant cost difference is obvious. However, since the solar cell is so much larger, the cost difference is significant.

Lead-acid batteries can be recycled at the end of its service life, while the lithium-ion battery may end in landfill, because there is no established system for the recovery of large lithium-ion battery.


Lithium-ion batteries are considered advanced battery technology. The cells in the battery can be fully charged and discharged increases efficiency. Lithium ion batteries are the most commonly used mobile phones and laptops.

Lithium ion batteries are smaller, lighter in weight for the same amount of energy. Lithium-ion batteries have at least two years longer than the average calendar life of lead-acid. Lithium-ion batteries do not require regular maintenance. However, the new generation of lead-acid batteries do not require regular maintenance extra.
 
Lithium-ion batteries, including the composition of a highly reactive materials, and lead-acid, lithium-ion battery that can be almost completely discharged without loss of function, so you can use a smaller capacity compared with lead-acid batteries. In addition, lithium-ion batteries typically have a longer cycle life, although this varies between solar pv manufacturers .

Monday, January 12, 2015

Development of the new solar cells

On Wednesday, Aquion Energy, a startup headquartered in Pittsburgh, so that such a battery, announced that the technology will allow small solar power to run around the clock in Hawaii. Conventional batteries would be too expensive or unreliable for grid scale storage. New battery materials and manufacturing processes for online use, not only reduce costs, but also should allow them to last for decades.

Several new batteries, each able to cost-effectively store energy from wind or solar farm output, finally hooked up to the grid. The grid batteries may burst through the elimination of the problem that, when there is no sun or the wind does not blow renewable energy generation costs decrease.




solar inverter





Similar projects are off the grid battery, California, by design, in order to adapt to the new rules go for renewable energy transition. Last month, the Ambri, headquartered in Cambridge, Massachusetts, which makes starting batteries out of the molten metal, announced that its batteries later this year in a series of pilot projects in Massachusetts, New York connected to the grid for the first time Hawaii and Alaska.

This new battery technology has not selected gas plant than current technologies cheaper backup renewable energy, in all cases. This is mainly because the battery is in low volume production.

But being the Ambri Aquion and for the professional market. Particularly high electricity prices in Hawaii, making the battery backup for wind and solar power more valuable. Hawaii microgrid will serve as a backup for 176 kilowatts of solar panel arrays, more than 40 medium-sized homes large enough, and will store up to 1,000 kilowatt hours of electricity, enough for a typical American family more than a month supply. Aquion plant can provide 200 per year such projects.




solar inverter






Ambri goal of the pilot project is slightly different, namely to reduce peak power demand of electricity is very important. If the customer can be stored in some of the electricity spot, they can reduce the power draw at a critical time, thereby greatly reducing the electricity bill.

Ambri pilot project which can also help solve New York City, where the import of electricity into the city line sometimes strained almost to the pole of a key issue. The company's battery can reduce demand, and to reduce the need for additional power supply line. They can also be used as the backup power supply interruption, the said Philip Guidice, right Ambri CEO. The latter is for the city, which has been plagued by a strong weather, such as super storm Sandy, a key issue in recent years. You can know more about solar energy from here: http://www.omnik-solar.com/ .

Sunday, January 11, 2015

PV inverter shipments in 2011: 23GW or 26GW

The PV inverter industry did a good job limiting production and clearing excessive inventory levels in 2011. After over shipping about 3GW in 2010 to the global market place the inverter industry was able to meet 2011 installation demand via consumption of these excess plus new shipments. 2011 shipments were based on better demand-matched production rates then the year before when production constraints helped stimulate over ordering and over production later in the year.

Worldwide installations in 2010 were only 17.9 GW and those extra inverters had to go somewhere and that turned out to be to installations during Q1 and Q2 of 2011. If the industry had shipped as much as much 26 GW this year then what happened to the excess shipments of last year assuming the installations of 2011 was around 26 GW as well? 3 GW of inventory is worth about $780M at factory gate prices and this is too much capital to have been allowed to linger in inventory without a large consequence.





solar inverters




Confirmation of this viewpoint comes from industry leader SMA as it stated in its Press Release of January 13, 2012 as well as in a presentation at HSBC/SRI Cleantech Conference on February 01, 2012 that “the solar inverter market of 2011 reached 23GW (2010: 23GW). Strong installations in Q4 were driven by inventory clearance.”

Financial analysts have noted on many occasions that companies can underestimate global demand to give themselves higher market share positions or to hide market share losses. 

SMA further states that according to its sales pipeline many of the Q4 installations in Germany have been registered without having an inverter. This data confirms the IHS iSuppli forecast of 23.4 GW inverter shipments (2010: 23.6GW) which was compiled independently.

It is too early to say that 26 GW were not shipped until final tallies are in but it seems that the strong installations of Q4 have made people believe that 2011 was a record year for inverters. We look at 2011 as the year the inverter industry did a good job matching supply and demand.

Thursday, January 8, 2015

Residential solar PV Price Index

The price of ordinary residential solar systems has stabilized, according to October from the solar choose to install a network database data between November and little change. Prior to this, about four months of steady decline in the question about the future of renewable energy targets. Although the overall average prices were steady, careful observation shows some variation between the city and the system size prices. This month, the system is the dearest Hobart and Canberra, and prices are generally at the lowest Perth.


                                                      solar inverter manufacturers



The following table contains the brand of solar inverter and solar module installation is listed by the installation.



CityPanel brands usedInverter brands used
Adelaide, SABenQ, Jinko, Lightway, Q.CELLS, RenaSola, Solar Juice, Trina, YingliSMA, Power-One Aurora, Delta, Fronius, Growatt, Samil, Schneider, SolarMax
Brisbane, QLDCanadian Solar, CSUN, Jinko, LG, Luxen, RenaSola, Suntech, YingliPower-One Aurora, Eltek, Fronius, Growatt, JFY, Samil, Schneider, SMA, Sungrow, Zever
Canberra, ACTJinko, Q.CELLS, ReneSola, Solar Juice, Trina, YingliPower-One Aurora, Delta, Fronius, Growatt, JFY, Samil, SMA
Melbourne, VICJinko, RenaSola, Solar Juice, Solarworld, Trina, YingliPower-One Aurora, Fronius, Growatt, Samil, SMA, SolarMax
TasmaniaReneSola, Jinko, Solar Juice, YingliPower-One Aurora, Fronius, Samil, SolarMax
Sydney, NSWReneSola, Hanwha, Yingli, Trina, Top Solar, Jinko, Solar Juice, Munchen, CanadianPower-One Aurora, Eversolar, Fronius, Growatt, Power-One Aurora, Samil, SMA, SolarMax, UNO
Perth, WAJinko, Solar Juice, TrinaPower-One Aurora, Fronius, Delta, GoodWe, JFY, Samil





Solar choose from more than 100 well-known nationwide network installation to provide market transparency for Australian consumers a fair comparison of solar quotation service. Since 2008, we have completed our free solar quote comparison, more than 85,000 Australian families. Select the business wing of solar, solar business choice, compare the market system from 30 kilowatts and 100 kilowatts, and manage tenders up to 2MW. Solar selection has also developed its own large scale solar farm projects.



About 5 years, 7 years or 10 years, you will need to replace a solar inverter system , but in addition, there are some of what the solar system owner takes no standard maintenance operations. As for energy storage goes, depending on the type of technology used, there will also be a 5-10 year replacement period.

Wednesday, January 7, 2015

The imformation of solar inverters and battery size

There are more and more problems in solar power system, it is serious because there is real danger of fire when relationship of inverter power, battery capacity, and cable size, and contact resistance are blown out of proportion, especially at the extremely low voltages battery pv inverter  use of 12, 24 and 48 volt batteries.

What is important when operating at low voltages it take high current to obtain high power. High current means large expensive conductors and electrical components. It also means a considerable increase in risk of fire at higher current levels. When you operate at high current levels requires special attention to termination resistance and voltage losses.

Ever wonder why electric companies use extremely high voltages to transport power? It is because of the relationship of power, voltage and current. Power or Watts = Voltage x Current. Example of the extreme is to transport 1 million watts : At 1 million volts takes 1 amp of current or a conductor the size of a toothpick to transport a hundred miles. At 100 volts takes 10,000 amps a conductor the size of your fat asses.



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Same logic applies to battery inverters. There are limits on what you the DIY types are completely unaware of. Those limits are battery size, cable/wire sizes, voltage/current relationship, heating, tooling, connectors, and most importantly FIRE. The largest amperage charge controller is 80 Amps! A 80 amp MPPT Charge Controller has the generic Power input limitations vs.

A 12 volt 1000 watt solor pv inverter  requires roughly 90 amps of current at full power. If you push the limit of copper cable requires a minimum of a #6 AWG conductor, in reality a #4 AWG or larger conductor. Well unless you have a $1000 special tool and training to terminate conductors for #4 AWG and larger is out of reach for most DIY. So 6 AWG and 90 amps is a limit you do not want to mess with. Once you get above 100 amps, you had better know what you are doing and have specialized training with a several years of supervised experience. Otherwise you are playing with Fire !

The same relationships extend into batteries of how much current you push into them and take out of them in a given amount of time. Which brings up the question of TIME. Energy and Batteries measurements are expressed in units of Time of Watt Hours and Amp Hours respectively. Watt Hours = Watts x Hours and Amp Hours = Amps x Hours.

Batteries are rated in Amp Hour, usually specified at a 20 hour charge or discharge rate. So if you have a 100 AH battery means it can be discharged for 20 hours at 5 amps until exhausted. Mathematically expressed as C/20 where C = the battery AH rating and 20 is the number of hours. It is important to understand that going forward. 100 AH / 20 hours = 5 amps.






solor pv inverter






As stated batteries have maximum charge and discharge rates they can withstand. It is related to the batteries Internal Resistance. The maximum rate depends on the battery chemistry type like Lead, Nickel, Iron, or Lithium, and how they are constructed. For Renewable Energy applications we use secondary lead acid chemistry. Lead Acid Chemistry comes in two flavors of Flooded Leas Acid  and Sealed Lead Acid . In those two groups are more sub categories which I will not go into other than to say for RE we want true Deep Cycle Batteries of either FLA preferable because they have longer life cycles, and AGM. Both have advantages and disadvantages over each other. 

As a general rule the maximum charge/discharge current for FLA batteries is C/8, and SLA/AGM is C/4. Some AGM’s can Charge/Discharge at higher rates of C/2 to 1C, but those are exceptions. Now lets tie it all together as it relates to Battery Inverters, cable size, and current.

A FLA battery you can go as high as C/8. Got it? So how much current can a 12 volt 720 AH battery provide? C= 720 AH right? So C/8 = 720 AH / 8 H = 90 amps. Where have we heard 90 amps before? Using Ohm’s Law we know 12 volts x 90 amps = 1080 watts. Just about exactly what a 1000 watt Battery Inverter uses at full power. How many of you have a 1000 watt inverter with a 12 volt 720 AH battery? To clue you in that is about 7 car batteries. 

Tuesday, January 6, 2015

Advantages and disadvantages of solar energy

Solar energy is being considered as an energy alternative to fossil fuels such as oil is very widely accepted renewable energy. First, take generations generations accumulation or accumulation of fossil fuels, which is why they are called non-renewable. Rising oil prices may be because we are slowly consume resources logo. On the other hand, the source the sun, the solar energy will always be around, and sunlight will never be exhausted. Fossil fuel is the culprit, the world is experiencing a dilemma carbon emissions. In contrast, solar energy is clean, non-polluting.

These are just two of the advantages of solar energy over fossil fuels. There are many. But, like everything else, has its drawbacks solar, but they calculate point-advantage to win.

After the initial investment, you will no longer need to pay a monthly bill for your energy consumption, the sun is free. In addition, solar panels are very low maintenance, when you buy high-quality panel, you may end up more than 20 years. Compare you will save on your monthly electricity bill for what the next 20 years is that it is compared with the cost of purchasing and installing solar panels, to find out how much you can save in the long run. In fact, you can even earn. If the power your solar panels produce more than what you need, you can sell excess power company. There are also some provisions that allow this.

Sunlight into solar power will not release carbon dioxide, which is a bad environment. This is why solar energy is known as green and clean energy. When you use solar power, you do not contribute to carbon emissions, which is harmful to the environment.



pv inverter manufacturers




When you have solar panels generate electricity for your home, you are not connected to the grid. In case due to some reason or the other major power grid failure, your home will not be affected. If you and your family love camping, you can enjoy the peace and quiet in your RV and installation of solar panels on top of the remote areas.

The main disadvantage of solar energy is required to install the solar system initial investment. A large system that can generate electricity for your home would cost from $ 15,000 to $ 30,000. After the initial investment costs, however, you do not have to worry about paying your monthly electricity bill.

For many families as possible to convert solar energy is the government's goal. This is to reduce dependence on the power grid across the country. Even as the initial investment cost is quite expensive average homeowner, the government also introduced several incentive compensation costs, such as tax incentives or tax credits, up to $ 2,000. Homeowners can also take EEM or saving a mortgage, one borrower can finance their home advantage of energy conservation efforts.

Saturday, January 3, 2015

New solar and pv inverter styles here for you

Solar inverter manufacturers have been enormous pressure over the past two years, in order to reduce the price of inverters for PV module costs have dropped significantly, resulting in a higher proportion of the inverter becomes BOS costs for energy greater impact overall costs.

Advanced Energy Industries has said that it has begun shipping its new flagship based on its backlog of pipeline to PV project "AE 1000NX'1MW scale modular central inverter transformer 1MW, following more than two years of restructuring, which including the outsourcing of production in China, in order to reduce production costs, while providing a higher product margins of key next-generation products AE.

More and more customers have been installed during the quarter, a new central inverters, including utility-scale ground-mounted and commercial facilities.


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The Inverter power strong prices, reflecting the products include a wider range of voltages, so that the production of each power earlier in the day, and allow peak efficiency in order to achieve faster main advantage; two, DC high load factor, the rapid increase of the power; three, 98% efficiency rating of production peak will last longer.

However, management unwilling to provide specific figures, the number and the actual number of quarter unit shipments of its backlog, although financial analysts in a conference call on duplication units. Management also noted that this production on the rise and will reach a "steady state" in the 2014 second quarter. The company has traditionally been heavily dependent on the US portion of revenue in its solar energy utilities and commercial markets. However, management noted that it is seeing growing interest and activity in Mexico and Canada, the central inverter.

The company noted that it has also developed a three-phase string solor pv inverter for the booming Japanese market, but is expected to launch in the first half of 2014. The company reported sales growth of solar energy in 2013 to 16 percent in 2012, to $ 250 million, compared with $ 217 million, helped by the acquisition of REFUSOL.

However, sales of solar energy in the fourth quarter 2013 US $ 64.9 million, down 4 percent from the previous quarter. The company as a whole made a net loss of US $ 1.5 million in the quarter of $ 14.6 million a year. AE Solar expects sales in the first quarter of 2014, affected by seasonal factors, partly by demand for new products offset.



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SMA has formed a new R & D projects in Germany, making new breakthroughs in innovative photovoltaic inverter concept, will focus on the cooling and packaging of progress to improve the conversion efficiency, cost and service life, which is the key of BOS the cost of photovoltaic power generation system. The project is said to be 1.4 € billion deutsche Federal Ministry of Education and Research as part of its "power electronics technology to improve energy efficiency - Part 2: Electronic energy future" part to support initiatives.

SMA Solar Technology, the Fraunhofer Institute for Solar Energy Systems, Manufacturing Technology and Advanced Materials and Phoenix has formed a research and development program is called "PV package." PV package is aimed at making alternative refrigeration technologies and materials breakthroughs, and advanced packaging solutions, the drive within the range of 10-40 kilowatts.

SMA Solar said it was responsible for coordinating the photovoltaic package, which aims to maintain competition in the German section of the inverter manufacturers and parts suppliers in the competitive position of the photovoltaic industry. According to the statement, a typical three-phase photovoltaic inverter mechanical and electromechanical components 70% support system is needed to cool the hot electrical components, reliability and long life to suppress a major degradation factor.