Technical reviews of solar+storage news

California and Australia are teaching the world how to deploy solar batteries with amazing speed

By John Fitzgerald Weaver | May 6, 2020

Australia and California are guiding the rest of the planet in how to deploy energy storage. And they’re doing it faster than any energy resources have been deployed prior. This week, Southern California Edison announced seven energy storage projects totaling 770 MW/3,080 MWh. The projects signed contracts with some of the nation’s largest electricity generation…

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Top ten list of lowest solar power prices in the world – updated May 18, 2020

By John Fitzgerald Weaver | May 1, 2020

The purpose of this post is to track the top ten lowest priced solar power plants globally. Here they are, as of May 18, 2020: 1.35¢/kWh – Abu Dhabi, 1.5 GW, announced April 2020 1.50¢/kWh – New Mexico, USA, 100 MW, announced May 2020 1.57¢/kWh – Qatar, 800 MW, announced January 2020 1.61¢/kWh – Saudi…

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Hanwha Q Cells: The top selling solar panel in the United States for home and business

By John Fitzgerald Weaver | April 27, 2020

Hanwha Q Cells solar panels are the leading market share products in the residential and commercial markets per research firm Wood MacKenzie Renewables & Power. The manufacturer supplied 25.2% of all residential solar modules, and 13.3% of commercial modules. Considering the residential market installed 2.8 GW, and the commercial space 2 GW in 2019 –…

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Energy Resources is cruising through COVID, deploying enough batteries in 2021 to power Rhode Island for four hours

By John Fitzgerald Weaver | April 23, 2020

NextEra, the most valuable energy company in the United States and the nation’s largest renewable energy company, announced 8.2% year over year growth. This number was near the top end of the projections. Energy Resources, their wind+solar+storage subsidiary, grew 11.3%. The Energy Resources team added 1,590 MW to their construction backlog. This includes 600 MW…

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image of man installing commercial solar panels

Massachusetts ups solar power IQ with pollinators, energy storage requirements, gigawatts greater capacity, more

By John Fitzgerald Weaver | April 20, 2020

The Massachusetts Department of Energy and Resources has updated its SMART solar power program. Updated documentation can be found on the emergency rule making page. At the highest level, the most needed change is that the program has doubled in size from 1.6 GW to 3.2GW of total solar power. This needed to occur because…

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This one weird solar trick to get five years of taxes back

By John Fitzgerald Weaver | April 16, 2020

Whether the policy is sound is a discussion for another day. Today though, it is of fundamental importance that you know how to maximize the tax benefits associated with solar power in order to gain the greatest financial benefit. And that means, you need learn about the recently signed CARES Act that granted U.S. taxpayers…

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Government labs set solar efficiency record, 50% efficient cell ‘very achievable’

By John Fitzgerald Weaver | April 14, 2020

Researchers at the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) have demonstrated a new record for solar cell efficiency – 47.1%. The six-junction structured research cell required a light concentration equivalent to 143 suns. A variation of this solar cell, under standard sunlight, reached 39.2% efficiency. The researchers, who published in Nature, suggest…

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How a virus is pushing the price of residential solar power down in the USA

By John Fitzgerald Weaver | April 13, 2020

It has been a long running frustration that residential solar power in the United States is much more expensive than it is internationally. In 2018, I wrote about how California’s rooftop mandate had the potential to push the price down to $1/watt – inline with international standards. While this reality hasn’t yet come to fruition,…

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The revenue behind a publicly traded commercial and industrial solar construction firm

By John Fitzgerald Weaver | April 10, 2020

The Peck Company is a publicly traded commercial and industrial solar engineering, procurement, and construction group based in Vermont. The second generation company is focused on the northeast U.S. markets. Peck went public in the summer of 2019, and immediately the value of the stock fell. In fact, it has fallen about 80% from those…

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The dance to deliver the world’s most efficient residential solar panel

By John Fitzgerald Weaver | April 6, 2020

The solar panel above is the first time this author has seen a perovskite+silicon tandem heterojunction module in the real world. It excites me. It should excite you as well. Oxford PV hopes to deliver perovskite-silicon tandem solar cells to high-end solar module manufacturers in the first half of 2021, now less than a year…

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