And by
NOW!!!!!! I mean
IN THE NEXT TWO OR THREE DECADES!!!!!!!!!!!!They are
COMPETITIVEThe comprehensive term “solar energy” embraces a wide variety of processes for converting the sun’s energy into high- and low-temperature heat, electric power, and liquid and gaseous fuels, on scales that can vary from small household systems to large centralized power plants. Their common feature is that they use the sun’s radiation as a source of energy—either directly (as in the increasingly familiar rooftop solar heating systems) or indirectly (as in wind power, ocean thermal energy conversion, wood burning, or those prospective technologies designed to turn plant matter, or “biomass,” into liquid and gaseous fuels).
Obviously, these technologies are a disparate lot. Some are essentially fully developed technically and under certain circumstances are competitive with the replacement costs of other forms of energy. Some are very far from economic and technical practicality, With appropriate subsidies many of the former could become valuable conservation measures over the next two or three decades;
There you have it!!!!! Feel perfectly free to bet anything on it, even your planetary atmosphere!!!!!
http://books.nap.edu/openbook.php?isbn=0309033314&page=345">Energy in Transition, 1985-2010: Final Report of the Committee on Nuclear and Alternative Energy Systems (1980)
Um...
Wait a minute, um, um, um, 1985-2010?
Which period would that be?
Um...um...
http://www.eia.doe.gov/cneaf/alternate/page/renew_energy_consump/table1.htmlWhatever.
Someone should send out for a futurist...