Utility Scale Storage

The battery operates at 230 degrees Fahrenheit, opening what researchers said could be “a whole cascading cost savings” including everything from less expensive materials to less insulation.

Scientists in India fabricated a redox flow battery based on zinc and iron that showed strong storage characteristics and no signs of degradation over 30 charge-discharge cycles. The battery also showed no signs of dendrite formation, overcoming one of the key hurdles for redox-flow batteries based on these low-cost, abundant materials.

A new report projects Lithium-ion technology to lead the Indian battery energy storage systems market by 2030 as prices for lithium iron phosphate (LFP) and lithium nickel-cobalt-manganese (NCM) battery technologies fall.

A British-Australian research team has assessed the potential of liquid air energy storage (LAES) for large scale application. The scientists estimate that these systems may currently be built at a cost between €300 and €600 per kilowatt-hour and that a positive business case could be favored by certain conditions, including a determined price structure in the energy market and the presence of a grid unable to support high levels of renewable energy penetration.

Professor Thomas Nann told pv magazine Australia that a breakthrough idea was almost too simple: “Actually when we submitted the patent in the first place, the patent officers came back to us and said ‘well, that’s too trivial’ and we made exactly that argument – why did no one else do that then?” said Nann.

The Solar Energy Corporation of India (SECI) shall sign a 25-year power purchase agreement with the successful bidders for these energy storage system projects. The projects are to be set up on a build-own-operate basis.

We will need 10.7 TW of clean energy generation capacity this decade to stay on track with the most ambitious of the climate change paths agreed in Paris, which would include plenty of solar investment and jobs, according to the International Renewable Energy Agency.

With many developers now working on solar+storage projects, it’s time to look more closely at specific business plans. Siobhán Green, lead on battery storage in continental Europe for Everoze, looks at three key questions.

Underwater gravity energy storage has been proposed as an ideal solution for weekly energy storage, by an international group of scientists. The novel technology is considered an alternative to pumped-hydro storage for coasts and islands without mountains that are located close to deep waters, and may also be interesting for PV if used to store green hydrogen.

The energy company says it will use hybrid-technology projects, round-the-clock renewables, battery storage, floating solar and green hydrogen as it attempts to wind down the 69% of its energy generation fleet based on thermal power.