Green power storage size to triple by 2030

Renewable Energy Storage is surging as wind and solar expand, stabilizing the grid with batteries and other technologies, enabling peak pricing arbitrage, and drawing €280 billion investments for 330 GW new capacity by 2030.

The global market for electricity storage facilities could more than triple in size, requiring 280 billion euros US $380.1 billion of investment over the next 20 years, said a German study.

The share of renewable energy such as wind or solar power is expanding rapidly as the world looks to rein in carbon dioxide emissions, but its output depends on weather patterns, said the renewables competitiveness study from Boston Consulting Group's BCG Munich office.

Because the sun does not always shine and the wind does not always blow, far more storage, including battery systems for solar, will be needed in future to keep reserve green power ready for undersupply periods.

Power storage is also needed to provide balancing supply when loads on transmission networks vary wildly — due to the inevitable volatility of renewable power, including wind power on the grid, fed into them.

"In addition to currently available capacity of around 100 gigawatt GW, there will be a global market potential of 330 GW in various storage technologies up to 2030," an abstract of the BCG study said.

"This necessitates, particularly for countries facing gaps like Germany's storage needs, an additional cumulative investment need of 280 billion euros to 2030."

The authors said they believed good financial returns were possible even without subsidies for utilities, raw materials and special equipment suppliers and financial players.

They highlighted opportunities in providing power obtained in low price periods, a dynamic underscored by US wind-solar potential findings, and then released to operators at times that peak prices are paid.

It said that Germany, the United States, China and Japan were discussing storage-related regulation, which could work toward boosting business opportunities.

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