My friend and guest blogger Brian McGowan writes: Had a guy come out and survey my house for grid tied solar. He is part of the state’s solar ethics board. He said he wouldn’t put solar PV on my house …
Category: Photovoltaics
Take a COOL Guess – the Fun Quiz on Clean Energy. Today’s Topic: Solar PV Trends in the U.S.
Question: Since 2014 just wrapped up, it’s a good time to look at certain trends we see in renewable energy. By what percentage would you guess PV installations in 2014 grew vs. where they were in 2008? Also: How many …
Efficiency of Solar PV and Wind Power
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 …
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 – …
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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 …
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