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Posts by John Fitzgerald Weaver

Solar panel innovation is much more than efficiency

The 500 watt commercial solar panel arrived recently. Greater efficiency means cheaper modules, lower installation costs, and of course lower electricity pricing. Joining the 500 watt party, Trina has introduced their Vertex solar panel family via a whitepaper. The product is split into two groups: bifacial double-glass modules DEG18MC.20(II), and the backsheeted modules DE18M(II)). Both…

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When will flow batteries be real?

There have been a few headlines regarding flow batteries recently: Form Energy’s First Project Tries Pushing Storage to 150 Hours How zinc-air battery capacity might reach a cost of $45/kWh Avalon and redT unite in $70 million merger of vanadium redox flow battery startups Schmid JV to begin building 3GWh Saudi Arabia flow battery factory…

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The most beautiful solar roof you can buy *today*

If you’re in the market for a new roof for your home, and you’re thinking about solar power – then why not both? GAF Energy, one of the world’s largest roofing material companies, and Solaria, who makes a beautiful all black super high efficiency solar panel, have teamed up to offer the DecoTech 2.0 system.…

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When good solar power plants go bad

Here’s some data for you: Of the 100,000 solar power systems totaling greater than 7 GW that were built as part of the U.S. Treasury Grant program, 0.02% to 0.2% of solar panels needed site post-installation repair work. The number one issue is inverters at 4-6% of sites. And, no surprise, the fewer systems installed…

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