Countries around the globe have set ambitious renewable energy targets and have grown increasingly reliant on sources such as wind and solar. However, to ensure that production is constantly equal to demand—a mandatory condition on the grid—they must be able to provide power when the wind doesn’t blow, or the sun doesn’t shine. Conversely, when production is higher than is needed, they can increase overall profitability if they can store the excess. Managing this intermittency requires additional flexibility, and new solutions.
For years, hydro storage has offered a cost-effective way to provide large-scale balancing and grid services, with improved predictability on cost and performance. New hydro storage technologies, such as variable speed, give plant owners even more flexibility and quicker response times.
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