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Distributed Storage

India introduces green hydrogen policy

The Green Hydrogen Policy is designed to promote green hydrogen and green ammonia projects with provisions like a 25-year waiver of inter-state transmission system (ISTS) charges and ISTS connectivity priority for renewable energy capacity set up for the purpose.

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Europe’s gigafactory boom in full swing with another plant announcement

The list of planned gigawatt-scale battery cell manufacturing plants in Europe has grown, with Anglo-Korean battery maker Eurocell announcing plans for a gigafab in Western Europe to start manufacturing at scale within 12 months.

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Viologen redox flow battery for renewables storage

Conceived for the storage of residential and large scale renewable energy, the device has a rated power of over 150mW/cm2, an energy density exceeding 40Wh/L, and a power density of 72.5mW/cm2. The battery was built with an anode made of inexpensive viologen and its cost, according to its creators, may be lower than $100/kWh.

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Australian lithium-ion battery blaze sparks safety concerns

A weekend fire caused by a lithium-ion home battery system in Adelaide, Australia, has prompted the authorities to urge solar and battery owners to be vigilant about system maintenance.

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Enphase batteries to be used in US virtual power plants

Microinverter provider Enphase has signed a deal with Swell Energy to participate in distributed virtual power plants in California, New York and Hawaii.

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Hydrogen under $3/kg may ensure affordable seasonal energy storage in the US

Researchers from the United States have investigated how fuel cells and electrolyzers may be able to operate under intermittent availability provided by both wind and solar and have found that an affordable hydrogen-based system for seasonal energy storage could be achieved at a hydrogen price lower than $3, produced from inexpensive renewable electricity at $0.02/kWh.

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The weekend read: Where’s the opportunity for solar with EVs?

Electric vehicles, both fully electric and plug-in hybrid EVs, look set to become dominant in new car sales within years in many parts of the world, but overall changes to car fleets face significant inertia. What impact will this have on the future grid, and where’s the opportunity for solar? Tristan Rayner gets behind the wheel.

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Italy’s third Capacity Market auction expected to open new opportunities for large-scale storage

The retirement of coal baseload capacity, some regulatory adjustments and high energy prices volatility could bode well for the deployment of batteries in Italy, and especially in Sicily. Problems, mostly related to the timing and the structure of the auction, remain, however. We spoke about it with Michele Scolaro, Aurora Energy Research Associate.

A 4,000 cycle lithium-sulfur battery

Scientists in the United States developed a lithium-sulfur battery using a commercially available carbonate electrolyte, that retained more than 80% of its initial capacity after 4000 cycles. The group used a vapor deposition process which unexpectedly produced a form of sulfur that did not react with the electrolyte, overcoming one of the key challenges for this battery chemistry.

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Latent heat thermal storage with PV for nearly zero-energy buildings

Researchers in Italy are combining PV with latent heat thermal storage (LHTM) and other renewable energy sources to maximize clean energy consumption in buildings. The 47kW PV array and LHTM system work independently, but the scientists said that a heat pump could be used to link them.

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