Hydropower currently generates more energy than all other renewables combined and is expected to remain the world’s largest source of renewable electricity into the 2030s. And pumping water uphill, aka pumped storage hydro, accounts for 90% of energy storage capacity. However, in Europe, investment and general interest in hydropower pales in comparison to wind and solar. This is partly because most suitable locations for power-generating dams have already been utilised, and building new dams is increasingly controversial due to their high environmental impact. For these reasons, hydropower is often referred to as the “forgotten giant” of renewable energy. Yet, there…
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