We found this article while scanning the web on rooftop solar info. Below is a small pull out, but you can read the complete article here.
Subsidizing The Rich Through California’s Solar Scheme
So what’s the problem? First, the credit paid in California for the excess solar power is far higher than the cost of alternative electricity sources, usually from utilities or from the spot power market. Consumers without such solar installations have to finance that excessively expensive electricity, so that overall power prices are forced above the level that would prevail in the absence of the net metering system. This system, by the way, subsidizes the affluent (median income of those installing solar systems: $91,210) at the expense of all other power consumers (median of $67,821), an embarrassing reality from which the supporters of the net-metering system prefer to avert their eyes.