Verbund to Expand Pumped-Storage Plant Boosting Flexibility

  • Austrian utility will start construction before third quarter
  • Verbund spending almost half a billion euros on Limberg III

The Verbund Moosersperre Dam in Kaprun, Austria.

Photographer: Akos Stiller/Bloomberg
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Austria’s biggest utility said it will spend more than $500 million dollars to expand a key Alpine pumped-storage plant.

Verbund AG’s Kaprun plant has been called the world’s most beautiful battery. About 94% of the world’s installed storage relies on this decades-old concept of pumping water uphill then generating power by releasing it downhill later. The plant at Kaprun currently stores enough power to cover almost 100,000 households for more than a week.