I ran a building performance business, called Target Energy Savers, from 1980 to 1987 in a small market: Helena, Montana. Population 40,000. In a small market, versatility is important.
Solar energy is the next best building-energy solution after energy conservation. Wind and photovoltaic electricity are competitive with coal-fired electricity and less expensive than nuclear electricity. However solar energy isn’t as powerful, or reliable, as electricity or natural gas. Therefore we should reduce our energy use as much as possible before implementing solar energy.