A young lady from a faraway land writes: My name is Alexandra, and I am a pupil at Herschel Girls School in Cape Town. I am doing a Science investigation and I am researching wind and solar energy, and which one …
Category: Photovoltaics
Vermont’s High Concentration of Enlightened, Authentic People Call Their Own Shots in Energy Politics
I was surprised and delighted when a cousin I hadn’t seen in 35 years called me out of the blue from her home in Northern Vermont over the weekend. No surprise here: her town has a fairly decent sized (1 …
Cheap Solar Causing Fossil Fuel Infrastructure to Collapse
One of the 14 reasons that I’m “bullish on renewable energy” (the title of my new book) is covered in a chapter called “cheap solar.” How cheap? Had you asked me a year ago, I would have guessed $0.10 – …
Cheap Solar Causing Fossil Fuel Infrastructure to Collapse Read More »
Solar-Powered Vehicles
A young reader asks me about building a car powered by nothing but sunlight. I happen to be very friendly with the first guy on the West Coast of the U.S. (Wally Rippel) to do exactly that, at least at …
Renewable Energy Guest Blogging
Ever wonder about the scientific validity of the claims made by guest bloggers? To be honest, I normally don’t, but here’s an exception that I thought I’d share, this one concerning the recent post on iron pyrite and solar PV. …
Assessing the Value of Solar Energy
Here’s a really solid article summarizing the thinking we should apply when determining the worth of solar as a replacement for other forms of energy. There are two main things that are omitted here, and while I have to admit …
Solar PV: Can We Eliminate the Inverter?
Over the years, I’ve reviewed many thousands of ideas in cleantech and renewable energy more specifically, and I wish I had a dollar for every time I’ve had to tell someone: “Is this physically possible? Yes. Is it potentially of …
Do Photos of Sexy Girls Help Sell Renewable Energy?
The other day a reader asked me about my use of photography on this blog. I responded that I usually spend at least a minute or two looking around before I make a selection—on the basis that a good photo …
Do Photos of Sexy Girls Help Sell Renewable Energy? Read More »
From a Guest Blogger: Iron Pyrite Could be Fixed to Harness More Heat
As solar power becomes cheaper, photovoltaic solar panels become more advanced. Today, scientists are looking for ways to efficiently harness the power of the sun, since the current heat to electricity conversion ratio of solar panels is very low. The …
From a Guest Blogger: Iron Pyrite Could be Fixed to Harness More Heat Read More »
New Record Set in Renewable Energy—And It Happened Where?
Amidst all the world’s woes, renewable energy continues to make progress—even in the good ol’ USA. In fact, this report covers a record-breaking event out here in California: the coming online of the world’s largest solar PV plant, consisting of …
New Record Set in Renewable Energy—And It Happened Where? Read More »
