Pumped storage |
A crucial piece of the renewable revolution puzzle
With pumped storage set to remain the most dominant storage technology in the world, Ernst Zeller from AFRY shares details on a number of projects the company has been involved with
PUMPED STORAGE IS CURRENTLY the only energy technology capable of storing electricity on a large scale and in a cost effective and sustainable way, while also providing flexible supply to grids with a high share of variable renewables. Thus, capacities are expected to grow substantially to 700GW by 2050. Based on the principle of prioritising renewable
energies in the load order, the long-term design of the system should aim at reducing and even preventing situations that will force the system administrator to stop or reduce production due to the risk of system survivability. Therefore, given the random nature of the
Below: Tauernmoos pumped storage project in Austria
availability of solar and wind energies and the volatility that characterises them, the enormous absorption of these technologies (especially in island markets) presents a significant challenge for the designers of the electricity sector. With the integration of large quantities of
renewable energies into the mix, the importance of
the development of energy storage potential will also increase. On the one hand, it will contribute to the increasing efficiency of renewable energies by utilising them at the desired time, and on the other will be a valuable tool to ensure the flexibility required in the operation of the electricity sector. The efficient storage of energy is a crucial piece
of the renewable revolution puzzle to fight climate change, reduce greenhouse gas emissions and protect the earth’s resources and biodiversity. Today, with a share of 96%, pumped storage is the dominant storage technology in the world. It is the ultimate choice for grid-scale energy storage, bulk power management and flexible wholescale ancillary services helping to provide grid stability.
Austrian examples As part of the Climate and Energy Strategy 2030,
Austria has set itself the goal of increasing the share of renewable energy in gross final energy consumption
18 | July 2022 |
www.waterpowermagazine.com
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