Residential Solar Panels
The solar panels are the most important component of any home solar power system. They actually convert the sunlight into electricity and are at the center of any solar power system. The homeowner must think about several things before selecting a type of solar panel for his or her house as there are many differences between solar panels even though they may look alike. The best guide to building a diy solar panel is Green DIY Energy Review.
Newer solar panels are better than older models in efficiency and construction. Because of these advances, any homeowner will be better off with newer panels than they would have been even a few years ago. Even though modern panels are generally better than older panels, care should still be taken when selecting a solar panel to use as there are a lot of differences between panels. Selection should be done based on how much electricity you need to produce and your budget.
The voltage requirement of the system you are building is the first thing to consider. Residential solar panels have several standard voltage levels and you need to choose with one to use for your system. Your choice of solar panels and power inverter will be dictated by this voltage level decision There are advantages to using higher voltage panels like less power loss in the long runs of wire, however higher voltage panels are also more expensive. Home solar panels will usually output power at 12, 24 or 48 volts, though there are some panels that are even higher. It is generally best to select panels with the highest voltage level that your budget will allow.
Number of volts in your solar system will also influence whichsolar charge controller you choose.
Another differentiator between different panels is conversion efficiency. There can be as much as 10% difference in conversion efficiency between different panels, even though the panels may look alike. This is a big difference in the power that will be produced from a given amount of sunlight. Over the life of the panel, this difference in electricity generated will be really big. Greater efficiency also means you will need fewer panels to produce the same amount of electricity and you will need less space for panels as well. You should generally choose panels with the highest efficiency rating you can afford. Getting a better quality panel now, even if you have to spend more money, will pay you back many times over during the lifespan of the panel.
Some of the newer specialty solar panels should also be considered. A single panel that combines both thermal and solar together is one such specialty panel being produced now. These can be used for both electricity and hot water. Using these panels, you can make the most efficient use of your roof space and double the benefit from the solar panels.
Something else that has become available recently are panels with built in micro inverters. A micro inverter is a power inverter that is build into the solar panel. It is sized to work with just the amount of electricity the panel outputs. A power inverter converts the DC electricity from a solar panel or battery into the AC power that your appliances need. The typical configuration is to the have all of the panels and batteries feed a single, larger power inverter than does the conversion for the whole system. With a micro inverter in each solar panel, you can build up your system slowly rather than having to pay up-front for a larger power inverter to support all the panels you will eventually buy. Building up your system using panels with micro inverters means you’ll get the benefits of AC power at every step as you continue to build. One final benefit of micro inverters is the electricity coming from the panels will be at a higher voltage and will be AC which will reduce power loss in the longer runs of wire. For much more information on micro inverters, visit Solar Micro Inverter.
Voltage Converter 12V-220V 150W
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