. If a typical home uses 390 kWh of electricity per month, how many square meters of solar cells would be required?
In a place Cloudy, sunlight has a power density of about 1 kW/m2. Photovoltaic solar cells can convert this power into electricity with 15% efficiency. If a typical home uses 390 kWh of electricity per month, how many square meters of solar cells would be necessary to meet its energy needs? Assume that electricity can be produced from sunlight for 8 hours a day.
Michelle Jean is quite correct in his calculation. The only problem with the problem as it stated that the solar panel is on average nearly 11% effective. There are some who claim to have advanced a peak of 18%, I do not know if they have been independently tested again but most run between 10 and 13%. For example, about 11 square meters should do according to your forecast. In fact, we live in a Solar Home fed. Our panels are announced with an efficiency of 12%, they are multicrystaline. Our entire range is 155 square feet, or about 15 square meters. Our home uses about 300 kWh per month, and summer, we usually have a little excess, which means 2 hours, on sunny days, our batteries are full and can hold more charge, so for an hour or two, the panels can not small loads in the house, and the rest is lost. This is necessary so that after a cloudy year, when the sun comes out, it is extra to put the batteries and run the house. You work on an assignment, or just do research? There are better places to get information about it than asking hacks like me online. The International Solar Energy would be my first choice, and some of renewable energy associations also. I'll give names and links below for you. In addition, it is a periodical that covers a large these things up the nuts and bolts, Home Power Magazine. This is actually where we started 11 years ago, now we have done here. Visit some websites and some of your own research, you will be informed at the end. Good luck and take care, Rudydoo
