Renewable and Appropriate Energy Laboratory

The argument is that solar power mounted on individual family roofs typically costs 25¢ per kilowatt hour or more (and sometimes more than 40¢ per kWh) - far more than many other options to reduce greenhouse-gas emissions - and thus state and local solar photovoltaic subsidy plans are not the best use of scarce resources.

The problem with this argument is that it true only in an economic system built around the public utility model we are used to, not the innovative energy system we could have.