Considering options for reducing environmental impact of energy, it seems it would be both more economical and more environmentally sound for a large group of people to get together and invest in a nuclear power plant than for each of them to individually install solar panels on their roofs. Taking the USA as an example, the typical home consumes about 15,000 kWh/year and an average home solar installation providing this power would have a total cost of $30,000, or about $12,000 after city rebates and tax credits. It would provide power for about 20 years without extensive maintenance. If a million people got together and paid $5000 each, however, they could fund a full-size nuclear power plant and get the same amount of power for 60 years (they would actually get about 18,000 kWh/year, and the excess capacity could be sold off to fund power plant maintenance).