Glenn Doty is an extremely senior scientist who studies the macro-world of energy, and doesn’t like what he sees regarding electric transportation. He writes: While I have tremendous respect for you and the work that you are doing, I have …
Electric Vehicles: Confronting the Tough Realities Read More »
A friend from China writes: A pleasure speaking with you on Skype. I believe that with your connections we should be able to develop cleantech companies in China and more renewable energy projects in this part of the world. The …
Incredible Renewable Energy Opportunities in China Read More »
[youtube http://www.youtube.com/watch?v=gyrehx520so]In November’s webinar, I discussed some of the best business plans I’ve encountered in renewable energy and electric transportation. This is part of an ongoing project in which I review an incoming stream of clean energy business concepts, apply …
[youtube http://www.youtube.com/watch?v=AgKgc_Oo1fI]As part of my series of basic videos for newcomers on the main renewable energy technologies, I lay out the basic forms of clean energy and say a few words about photovoltaics, solar thermal (aka concentrated solar power or …
At the risk of stating the obvious, there have been huge mistakes made in governments’ promotion of renewables. But who should be surprised by that? Just because clean energy is a good thing doesn’t mean that there won’t be bad …
Those of you writing books or blogs about Renewable Energy – take note of this recent article in the N.Y. Times: Very sad what our country has evolved into. The “Renewable Energy: Bubble, Scam or Both?” Is spot on. Everyone …
From Guest Blogger Don Harmon on: “Renewable Energy: Bubble, Scam or Both?” Read More »
Geothermal (Ground-Source) Heat Pumps (GHPs) make use of a completely different set of principles than the kind of geothermal we commonly discuss. Where the latter relies on the transfer of thermal energy from one fluid to another, like an egg …
Geothermal Heat Pumps Face Strange Barriers to Adoption Read More »
I wrote recently that it’s impossible to predict the ROI associated with solar thermal (aka concentrated solar power or CSP). What I was referring to was utility-scale CSP. Personally, I think the future will hold significant reductions in costs and …
The ROI on Solar Thermal – aka Concentrated Solar Power Read More »
Here we go again! Another major Solar Power company here posts record losses: http://online.wsj.com/article/BT-CO-20111103-727087.html This comes on top of the Solyndra fiasco, and the news of Ener1’s bankruptcy and also Beacon Power! What is going on here in the U.S. …
I just received this terse question from a reader: “What’s the ROI (return on investment) on solar thermal?” I responded, hoping to prompt more discussion: “That’s an interesting but impossible question to answer. What is the nature of your interest …
What’s the Return on Investment on Solar Thermal? Read More »
