Talking About Renewable Energy on David Letterman



According to the article linked above, “When the SunShot program was planned in 2010, CSP was 21 cents a kilowatt hour without subsidies. Now, SunShot Initiative CSP Director Dr. Pitchumani tells CSP Today, they are getting reports of prices of as low as 13 cents a kilowatt hour.” (more…)

That’s great, but why not OTEC (ocean thermal energy conversion)? Googling the subject turns up lots of content that’s a few years old, but not much recently. The oceans there (like the one pictured here off the idyllic beach in Balesin) are 84 degrees F today; that’s certainly warm enough; perhaps it’s the availability of cold water near to land?


Emma’s from Nottinghamshire in Northern England – a very beautiful (albeit wet) part of the world. Together we’re building most of the material for the new site EmpowerTheOcean.com. So far, so good.


Anyone who rules out all types of nuclear — now and forever — simply because of the issues associated with the fission of uranium is a bigoted fool. That type of thinking is no better than those who reject modern medicine because its past practices included blood-letting and leaches. Having said this, we’re a very long way, in terms of both dollars and time, from a safe and practical approach to thorium.


I don’t see my alma mater listed as a contestant, which is understandable in that Trinity’s all about liberal arts. Out of 400+ kids in my class, I was one of only five or six physics majors, and I don’t think there were more than about 15 in the engineering program; most of my friends got degrees in English, history, or economics. But our rival to the north (Middlebury) does a very good job with this Solar Decathalon, I’m sure due to the presence of Bill McKibben.
I’ll post my observations.

• Where are the areas for the greatest potential improvement in the cost effectiveness of PV, CPV, CSP, wind, etc? What role does materials science play in all this?
• How will costs come down as the world moves from the megawatt to the gigawatt and ultimately to the terawatt scale? (more…)