[DB]

They are cheaper but I believe it still takes 20 years to break even. Hardly a good economic choice...

[RayChuang88]

Actually, the price of solar panels will really drop very soon thanks to solar panels made with nanotechnology particles instead of expensive-to-make silicon sheets. They're talking maybe maybe 70-80% drop in production costs.

Combine that with the coming of nanotube-based supercapacitor electric storage units and the day of distributed power generation (where every home generates its own electricity and shares the excess with other users) becomes reality within ten years.

[RockyMtnMan]

That metric is generally referenced for home owners, not businesses which have totally different usage needs.

[Realism]

Hardly a good economic choice...

The words long term investment come to my mind.