Alternative energy is well worth pursuing. I could even argue that our government should invest in the research and development of better energy sources. Driving the price of electricity down or being able to live off the grid with all the accouterments would be awesome.
Recently a friend of mine took advantage of a government program and purchased some panels and an electric car. With the life expectancy and low cost of said vehicles he should come out ahead in the long run. Meantime his electrical bill is a nice bragging point. You could also throw in the protecting the environment.
Still you hear the wails and lamenting of Nuclear, Fracking, coal and fossil fuels. Personally, I feel we should be investing into all the above sources to drive the costs down. At a certain cost point a tax should be placed on usage that exclusively goes towards solar, wind, geothermal, fusion, tidal etc.
In Germany, feed-in tariffs of eight times the market rate resulted in the installation of over one million roof-top solar systems by 2010. But the 20-year guarantee also produced a subsidy obligation of over $140 billion. German electricity rates climbed to the second highest in the world and continue to climb to pay for green energy. To stop the bleeding, Germany cut feed-in subsidies three times in 2011 and announced a complete phase-out by 2017. Spain, Germany, Italy, Netherlands, the United Kingdom, the United States, and other nations cut subsidies for wind, solar, and biofuels during the last three years.
It all might be a pipe dream, still worth pursuing IMHO.