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Iron flow battery tech shows promise for mid-duration energy storage

The ESS battery systems have a prescribed design life of 25 years, but the battery modules, electrolyte, plumbing, and other components may well last for decades longer with proper maintenance.

Energy storage appears to be fully charged for exponential growth

Lithium-based energy storage volumes in the U.S. are expected to grow by multiple orders of magnitude in the coming years, with a 1000% capacity increase by 2023.

Do engineers dream of solar panel efficiency?

A true next generation of solar cell technology is upon us. It is time to contemplate the benefits.

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Using machine learning and cheap satellite data to design rooftop solar power

Researchers have built a tool to use cheap satellite imagery – like Google Maps – to automatically create solar designs with a 91% accuracy rate.

Bifacial beats Trump’s tariffs

Federal trade authorities have ruled that bifacial solar modules are no longer subject to the Section 201 ruling, which currently apply a 25% tariff to most solar modules imported to the United States.

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California is learning to trust 100% residential solar power

California utility PG&E has tested levels of residential solar power up to 100% penetration, and how to mitigate the effects of voltage and thermal overload via smart inverters and traditional transformer and circuit upgrades — with smart inverters shown to allow for up to 100% penetration at cost-effective pricing.

California’s solar power record setting season arrives

The state grid operator reported breaking 11 GW of instantaneous power from large scale solar on Saturday at 1.50pm. Just 20 minutes earlier, the CAISO grid was exporting a record 1.5 GW of electricity, and last Wednesday it hit 93% clean electricity for a moment.

Tesla, GAF, RGS and now Hanergy: will solar roofs finally heat up this year?

Hanergy displayed the newest rendition of its 18.7% Thin Film Flat SOLARtile in Australia last week as it gears up for the U.S. and global product launch later in 2019.

High-efficiency solar module upgrades from REC and Trina

REC Group has begun production of its residential N-Peak Black series, reaching up to 325 watts. Concurrently, Trina Solar has released four new modules within its Tallmax, Duomax, Duomax Twin and Honey series — some of which reach up to 415 watts.

DOE supporting cheap gallium arsenide, 30% efficient perovskite, and more

The DOE’s Office of Energy Efficiency & Renewable Energy has awarded $50,000 to 20 teams that advanced to the semifinal stage of the American Made Solar Prize. The teams will now have 90 days to design a proof of concept.

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