As long as the various so-called "green energy" options remain much more expensive to produce than the burning of coal or gasoline, there is no reason for our government or any government to subsidize it.  This applies to electric cars also, though natural gas and perhaps hydrogen fuel cells remain the best potential options.  In reality the only green electricity option that likely does make financial sense is nuclear, and while the left loves green energy... their lunatic fringe are afraid of nuclear as an option.  President Obama is stuck instead with the promotion of public policy scams like Solyndra, the Chevy Volt, and sea weed.  Frankly, other than nuclear, the smart green option today is the use natural gas to power semi trucks... but the Teamsters are against it so the democrats need to be also.

Solar, on the whole makes more long term sense than most other energy resources.  Part of the problem is that the entrenched providers and the owners of the architecture are all fighting the 'new' comers, Solar and Wind.

For example, in the US, there's been more than one wind farm project scuttled because the owners of the power lines wouldn't allow the wind farms to connect to the grid.  Residential solar would be more economically attractive if ALL utility systems were required to pay, FULL PRICE, on the excess we put on their grid, AND, there was no limitations to the amount paid.  There are utility systems where the large providers aren't required to buy/pay for the excess energy generated, or if they do pay, they have it arranged where they're never going to have zero balance, or credit on your monthly electric.

If the big guys would play fair, it would work better than it does now.  I'd invest 5k per year for 5 years building an array on the roof of my home and have total ROI in less than 10 years after completion given the current rate I'm paying, IF, my provider were paying me the same rate they charge me for the excess power I'd be generating.  As it stands, my provider doesn't have to pay me for that excess, so my ROI would take 20 to 25 years.

Also, let's remember the first coal plant, the first hydroelectric, the first nuclear, the first natural gas powered plants ALL would have been serious money losers, or more correctly WERE without some massive subsidy.  All the damns, most of the coal fired, and all of the nuclear plants received some form, local, state, or federal subsidy for construction and then later on once online.  So pissing and moaning about how renewable requires subsidy is just so much hypocritical hot air.

Hell, had Tesla gotten his way, we wouldn't even PAY for electricity now...