It has been a tough year for solar power.
Solyndra famously imploded, the price of polysilicon dropped 60%, and a glut of natural gas has made it the "new" alternative energy source.
But make no mistake about it: alternative energy stocks are going to be long-term winners-especially for solar power investors.
For instance did you know that Germans are initiating a campaign valued at more than $260 billion to harness wind and solar power. It is already being called the biggest restructuring of the national energy landscape since the end of World War II.
Or that China plans to double its solar power capacity by installing three GW this year, according to China Daily.
And despite the recent declines, analysts expect European demand to rise again in 2012. UBS forecasts that solar power generation will rise from 21 GW in 2011 to 25 GW in 2012.
What's more, solar panel prices are expected to stabilize as a result of tighter inventories and improving demand.
That's increasing talk within the industry that pure-play alternative energy stocks could be gobbled up by oil companies or large-scale manufacturers.
With that in mind here are five solar power possibilities, including innovative companies, takeover targets, and companies that can compete on cost.