What’s the efficiency of a Tesla glass tile solar roof?

It depends. We attempt to do the math. Maybe it doesn’t matter.


Solar racking innovations on the show floor at Intersolar San Diego

Modules and batteries get all the headlines, but solar racking represents the shoulders upon which everything is built — and advances in this field are happening fast. Vertical racking for bifacial modules, new floating racking, a replacement for aluminum flashing, corrugated metal connections, and more!

Innovative solar modules on the show floor at Intersolar San Diego

In sunny San Diego for Intersolar 2020, we’re seeing a new idea on tracking rooftop solar modules, diodes moving to the cell level, two types of building integrated solar products, and some solar hot water.


Utility-scale solar PPA pricing down 4.7% in 2019, with 13.6 GW of corporate deals signed

LevelTen’s PPA Price Index showed Q4 pricing down 0.9% versus Q3, while BNEF saw nearly 20 GW of solar power corporate PPAs signed globally.

Hardware Brief: Solar+storage+indoor farming, space robots, battery packs at $135/kWh, more!

Sunmodo’s racking hardware has been approved by Sunnova, Schneider Electric and Scale Microgrid Solutions are partnering up to do some indoor farming, Groundwork rents the machines you need to build and maintain your facilities and more! Also – send your gear news to USA-Editors@pv-magazine.com to get in here.


First half of 2019 saw sunlight down as much as 10%, grand solar minimum held off in second half

Clean Power Research saw solar generation shift downward from the norm as much as 10% in many U.S. locations in the first half of 2019.


MIT and NREL see solar modules reaching well below 20¢ per watt

Although, the author of this article sees a path below 15¢ per watt. Researchers at MIT, working with financial modeling teams at NREL, have projected the electrical losses and financial gains of thinning solar cells from the current 160 micrometers to 50 micrometers.


Kentucky seeking its largest solar power plant via a deal with Toyota and Dow

Louisville Gas and Electric Company and Kentucky Utilities Company are seeking approval for a 100 MWac solar power project to be split among their own customers, plus the two corporations, to be delivered by 2022.


NextEra on its ‘secret sauce’ for energy storage, 2 GW of solar+wind+storage, 10 GW of Florida solar, and more

NextEra’s earnings call showed why the company’s stock has gained greater than 50% in the past year, as it deployed 2.7 GW of new and repowered renewables, including 700 MWac of solar power and 340 MW/1.3 GWh of energy storage in 2019.


Zinc-air battery being deployed in New York aims for extremely low $45/kWh cost

New York state has chosen Zinc8’s zinc-air battery to demonstrate the technology’s viability over a three-year period in a 100 kW/1 MWh storage system.


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