|
Staff Contributors
Guest Contributors
|
||||
The future is solar; politics is ethanolHillary pays tribute to Iowa politicsPosted by David Roberts at 4:58 PM on 23 Jul 2007This is (bitterly) funny: As Sen. Hillary Rodham Clinton climbed onto a makeshift stage at the Iowa State Fairgrounds and embraced motor fuel from corn as a key to America's future, she completed a turnabout from being an ethanol opponent, a position she held only two years ago. This seems like a good place to tout Robert Rapier's excellent recent post: "The future is solar." In it, he makes the very simple point that photosynthesis -- the means by which corn, rapeseed, switchgrass, etc. make energy from sunlight -- is not particularly efficient: "when an acre of rapeseed/canola is planted, we get about 0.06% conversion of the sun's energy into oil." In contrast, researchers have recently hit 40% efficiency with solar panels in lab conditions, and everyday solar panels are running at about 15% these days. Solar voltaic will always make energy from sunlight more efficiently than biomass can. Ergo: the future is solar. Not something you'd want to say in Iowa, though.
You are not logged in. Thus, you cannot post a comment. If you have an account, log in. If you don't have an account, well, by all means go make one! Meet you back here in five.
|
sign in
Search Gristmill
Using Gristmill
Recent Comments
|
|||