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New Nail-On Solar Shingle Could Transform Residential Solar Industry

January 12, 2022
Reading time: 2 minutes

Green Energy Futures/flickr

Green Energy Futures/flickr

43
SHARES
 

California-based GAF Energy has developed a mass-market shingle that could revolutionize rooftop solar generation.

“What we’ve built is a nailable solar shingle that goes on as fast or faster than a regular shingle, looks great, and generates electricity,” GAF President Martin DeBono told Canary Media.

GAF Energy is a division of Standard Industries and was co-launched with GAF, one of the largest roofing materials companies in the world. With Tesla and other tech companies pushing towards new approaches to rooftop solar, the roofing giant put its foot in the game to “disrupt the roofing industry” before someone else does.

According to DeBono, GAF Energy’s edge comes from approaching the shingles from the perspective of a roofing company, rather than a solar company. Their emphasis on the product’s utility as a roofing material can help rooftop solar move away from the (relatively) clunky panels we’ve come to know and love.

Customer acquisition is typically costly for solar businesses, but because GAF Energy is already embedded in the roofing industry, it’s in a good position to solarize the roofing market, a quarter of which GAF already commands, Canary Media says.

The 45-watt shingles take one to three days to install and measure 60 inches long, 16 inches tall, and less than a quarter-inch deep. The design strings together mono PERC (Passivated Emitter and Rear Cell) solar cells that contain a single crystal of silicon and are coated on the back to reflect back into the panel any light that passes through. At 23% efficiency when using standard industry technology, the product is at the high end of average range for the industry as a whole. The stringed cells are then laminated onto a backsheet made of a common commercial waterproofing membrane, then “encapsulated and topped with glass and a textured material that allows the shingle to be walked on,” writes Canary Media.

“Because it’s built as a roofing product, it has to meet roofing standards,” DeBono said. “It has to be able to be submerged in water; it has to be able to withstand hail; it has a Class A fire rating—all standards that a solar panel does not need to meet, but a roof does.”

Bypass diodes, which allow energy current to continue flowing past faulty or damaged cells, are located at every four cells to provide a more consistent energy product, said Gabriela Bunea, GAF Energy’s senior vice president for solar research and development.



in Buildings, Clean Electricity Grid, Ending Emissions, Energy / Carbon Pricing & Economics, Energy Access & Equity, Jobs & Training, Off-Grid, Research & Development, Solar, Sub-National Governments, Supply Chains & Consumption, United States

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Comments 4

  1. Nancy Wigen says:
    7 months ago

    Pass the Just Transition Act so people/communities/ industries can make the changes needed to address the Climate Crisis immediately. We are out of time. And stop subsidizing Fossil Fuels, stop fracking and thermal coal..
    This year in BC we had the heat dome that killed 600 people. It also killed my garden so I can’t feed myself. It caused the tragic fire that destroyed the town of Lytton, destroyed valuable forest, and contributed to the devastating flood in the Fraser Valley where 2/3 of our food comes from. Meat, milk, eggs, vegetables, fruit that used to feed us now are no longer available here. California is also suffering drought, fires and climate change that is reducing its ability to feed everyone. Food prices are already higher and will increase more as the full impact of the damage is realized. Farms destroyed may not be productive again for years, if ever. Act courageously now to make real, vital changes.

    Reply
  2. Michael V Roddy says:
    7 months ago

    I’ve seen other versions of this idea for 15 years, but prior versions cost more than encased solar panels. Has anyone done a robust price analysis?

    Reply
    • Mitchell Beer says:
      7 months ago

      That’s the crucial question. We haven’t taken a deep dive on this. But GAF is a major player in the roofing industry, so they would have both the scale to drive cost reductions and the expectation that the product will be affordable in their market. We’re keeping an eye on this, but it also strikes me as a good moment to crowdsource the question — if anyone sees news on this, please post a comment!

      Reply

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