Pumped Hydro Storage (PHS) can provide longterm energy storage at a relatively low cost and co-benefits in the form of freshwater storage capacity. IRENA's global roadmap calls for a two-thirds increase in hydropower installed capacity, to 2 147 GW, by 2050. In other words, around 850 GW of new installed capacity is required in the next 30 years. Hydropower projects can directly support the achievement of SDGs 6, 7, 9 and 13.
"The only way to make renewables reliable in the zero-emission energy system we need is with storage and that is going to include long duration storage for 8, 12, 24 and more hours… And it will be pumped storage that will do the heavy lifting."
- Hydropower Turnbull
Currently, PHS systems are the primary technology used to provide electricity storage services to the grid. Accounting for the transition to renewable energy sources, particularly wind and solar, requires increased flexibility in power systems. Wind and solar generation are intermittent and have seasonal variations, resulting in increased need for storage to guarantee that the demand can be met at any time. Short-term energy storage solutions with batteries are being used to resolve intermittency issues. Innovative methods of PHS operations are evolving to provide greater flexibility to the power sector and integrate larger shares of VRE (variable renewable energy) in power systems.
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Manoj Sahu is an Industry Offering Head – Energy with 20 years of experience in leading interdisciplinary teams, collaborating on complex engineering design solutions and cost reduction programs for power generation and renewable energy products. His areas of expertise include leadership with strong product management, product development and design thinking skills. He provides thought leadership to business stakeholders with market research and go-to-market strategy for new offerings.
