solar energy cost per kilowatt hour
If you want to rely exclusively on solar electricity, solar panels how many you have to buy?
solar energy is one of the components an important renewable energy future. Your parents are considering the installation of photovoltaic cells that convert the sun's energy directly in electricity, in its roof, and asked his help. You do some research and know that, on a sunny day in Idaho, sunlight on the surface of the earth provides about 0.75 kilowatt/m2. The solar panels have an area of 0.5 square meters, operating at 10% efficiency, and cost $ 63. His parents the use of electricity at a rate of 2 kW. 1. If your parents want to rely exclusively on solar energy, solar panels how many need to buy? How big should your roof be (in feet) for maintenance of all the panels? 2. If electricity costs $ 0.08 per kilowatt hour, how long will it take for your parents to recoup their investment initial?
Since there are 24 hours in a day to be completely out of the network also need battery backup, converted a load, and an inverter. Buut I digress. questin I think the question of how to generate maximum power of 2 kW 1 solar panel generate .5 * 0.75 * 0.10 kW 0.0375 kW to 2 kW 2/0.0375 54 panels square meters is 27 m ^ 2 291 square meters. The cost is 54 * 63 $ 3,402 2 kW / hr 3402 / (2 * 0.08) hours, 21.262 hours _____________________
