Plant Load Factor (PLF) is the ratio between the actual energy generated by the plant to the maximum possible energy that can be generated with the plant working at its rated power and for a duration of an entire year.
Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation.
The plant load factor (PLF) of pumped storage hydroelectricity (PSH) in the United Kingdom has fluctuated since 2010. In 2024, the PLF of pumped storage hydroelectricity increased from the previous year, reaching 11.2 percent. Load factors are the ratio of how much electricity was produced as a share of the total generating capacity.
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GOV.UK, & UK Department for Business, Energy and Industrial Strategy, & Department for Energy Security and Net-Zero (UK). (July 31, 2025). Plant load factor (PLF) of pumped storage hydroelectricity (PSH) in the United Kingdom (UK) from 2010 to 2024 (percentage) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 16, 2026, from /statistics/548832/plant-load-factor-pumped-storage-hydro-uk/
GOV.UK, und UK Department for Business, Energy and Industrial Strategy, und Department for Energy Security and Net-Zero (UK). "Plant load factor (PLF) of pumped storage hydroelectricity (PSH) in the United Kingdom (UK) from 2010 to 2024 (percentage)." Chart. July 31, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 16, 2026. /statistics/548832/plant-load-factor-pumped-storage-hydro-uk/
GOV.UK, UK Department for Business, Energy and Industrial Strategy, Department for Energy Security and Net-Zero (UK). (2025). Plant load factor (PLF) of pumped storage hydroelectricity (PSH) in the United Kingdom (UK) from 2010 to 2024 (percentage). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 16, 2026. /statistics/548832/plant-load-factor-pumped-storage-hydro-uk/
GOV.UK, and UK Department for Business, Energy and Industrial Strategy, and Department for Energy Security and Net-Zero (UK). "Plant Load Factor (Plf) of Pumped Storage Hydroelectricity (Psh) in The United Kingdom (Uk) from 2010 to 2024 (Percentage)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 31 Jul 2025, /statistics/548832/plant-load-factor-pumped-storage-hydro-uk/
GOV.UK & UK Department for Business, Energy and Industrial Strategy & Department for Energy Security and Net-Zero (UK), Plant load factor (PLF) of pumped storage hydroelectricity (PSH) in the United Kingdom (UK) from 2010 to 2024 (percentage) ÌÇÐÄÆƽâ°æ, /statistics/548832/plant-load-factor-pumped-storage-hydro-uk/ (last visited July 16, 2026)
Plant load factor (PLF) of pumped storage hydroelectricity (PSH) in the United Kingdom (UK) from 2010 to 2024 (percentage) [Graph], GOV.UK, & UK Department for Business, Energy and Industrial Strategy, & Department for Energy Security and Net-Zero (UK), July 31, 2025. [Online]. Available: /statistics/548832/plant-load-factor-pumped-storage-hydro-uk/
