How Many Solar Panels Are There In The Us

Annual pv solar radiation in the united states source nrel the current standard size of panels used in a large sized solar plant is easily over 350w.

How many solar panels are there in the us. The exact number changes depending on the specifications of the chosen panel model as well as the sunshine available at the project site. There are over 1 47 million solar panels in use across the contiguous 48 states according to satellite machine learning from researchers at stanford. In order to find a range for number of solar panels we compared arizona and maine s solar panel production ratios 1 31 and 1 61 the highest and lowest in the u s. We then took 11 000 kwh and divided it by the respective ratios and then divided that number by 250 the typical panel wattage.

Assuming this power rating we would need to divide 2 75 tw by 350w which gives us the gigantic number of 7 85 billion 7 857 142 857 to be precise panels required. Solar power in the united states includes utility scale solar power plants as well as local distributed generation mostly from rooftop photovoltaics. American solar power offsets over 70 million metric tons of carbon dioxide every year which is like planting almost 1 2 billion trees. A home that consumes 1 000 kwh per month will normally need between 20 and 30 solar panels.

It s great to know there s an increased chance of getting american made solar panels. This is enough capacity to power the equivalent of 12 million average american homes 1. After all we don t have dual suns that permit us to soak up solar energy 24 hours a day and there will be inevitable interruptions in power relay due to maintenance or any number of incidents. Solar power is more affordable accessible and prevalent in the united states than ever before.

Since the beginning of 2014 the average cost of solar photovoltaic pv panels has dropped nearly 50 2.