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 »
We at 2GreenEnergy are on a quest to introduce the basic concepts of renewable energy to newcomers to the field, and, to that end, we’ve begun to create a series of “infographics,” providing a few essential concepts at a glance. …
Infographic – History of Renewable Energy InfoGraphic Read More »
Here’s Part Two of the interview that EVWorld editor Bill Moore conducted with me shortly after Renewable Energy – Facts and Fantasies was published last year. In the course of the discussion, he asked me to provide my high-level impression …
EV World Editor Bill Moore Speaks with Craig Shields – Part Two Read More »
I was giving a speech earlier this month about Energy Security, and while preparing the speech came upon some stark realizations about electrical generation in the US: 1) Solar is equivalent to an insignificant rounding error for electrical generation in …
By Guest-Blogger Don: Wanted, People Who Can Grow a Company by 8% (per month) Read More »
The response to my request for more cleantech business plans has taken me to some fantastically interesting places, as I knew it would. Here’s Smarter Flush, a consumer product I really love. For $19.95 and an investment of 10 minutes …
Cutting-Edge Consumer Product Conserves Huge Quantities of Water Read More »
Mankind is literally at an energy crossroads. He has just about half depleted his fossil fuel reserves, and while half does not sound bad, his present rate of consumption is higher than ever. What that means is while his supply …
By Guest-Blogger Dragmit: A FINAL PLANET WIDE SOLUTION TO RENEWABLE ENERGY Read More »
I’ve been preparing to make a few videos for newcomers to the subject of clean energy that answer basic questions on renewable energy, fossil fuels, nuclear energy, and the energy-related challenges we face. I’ll be recording a series of short …
