Blog Archives

From Guest Blogger Emie-Claude Lamoureux: First Self-Consumption Solar Energy Project in Girona Province, Spain

A small town in Catalonia has financed a self-consumption solar installation through crowdlending services.

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From Guest Blogger Becky Evans: What Types of Businesses Can Benefit from Solar Panels?

Absolutely any business can significantly benefit from solar panels. Big or small and across all industries, if you have a roof over your business then it is more than likely that your company can save with Solar PV. Commercial roofs

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Another State Increasing Rates on Residential Solar

2GreenEnergy frequent commenter and all-around cool guy Brian McGowan sent me this article on the push-back that residential solar users in Northern Texas are receiving from their power utility.  I respond: Well, at a certain level, all this is business

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Solar-Powered Motor

Someone on Facebook writes:  This (see video) is probably the Best Solar Powered Motor! We can look forward to using this technology in the Automobile Industry as well.  What’s your say? There are a few things you need to understand:

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Data Is Playing a Big Role in Driving Clean Energy 

As we’ve often discussed here, information and communications technology (ICT) is one of the main drivers of the rapid migration to renewable energy.  There are hundreds of different reasons for this, but here’s one that you’ll find the moment you

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Solar Roads May Not Have a Future, But This Is an Example of Fake News

A colleague asked me for my take on solar roadways, and this article in particular.  I respond: Well, this is pretty clearly fake news. The solar panels in the entire roadway would have only powered a water fountain?

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Renewable Energy Is Prevailing Despite Political Pressure Favoring Fossil Fuels

In 2012, I interviewed Dr. Tom Konrad, owner of, for my second book (Is Renewable Really Doable?). It would be hard to imagine someone more deeply immersed in the business/investment side of clean energy. Tom (pictured above) was on

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Building-Integrated PV Coming Into Fashion

Here’s a good demonstration of the power of marketing.  Building-integrated PV has been around for decades, and now there are hundreds of different variations on the theme on display at the large shows like Solar Power International and Intersolar. Yet,

Posted in Photovoltaics

Is the Solar Sunflower Blossoming?

Here’s a video touting the benefits of the “SmartFlower,” a unique design in solar PV.  Note that it didn’t happen to mention the MSRP of the product, from which one could deduce the cost per kWh of electricity it generates.

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Breakthrough in Solar PV?

Here’s a video on a new approach to solar PV that claims to double the efficiency from about 18% to 36%.  But I can’t see how anything these people say could possibly be true (beginning with the current efficiencies, which

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