Regions where pumped hydroelectric storage (PSH) facilities have particularly high environmental impacts tend to be associated with open-loop systems and specific local conditions. Open-loop PSH projects are connected continuously to natural water bodies, which can lead to significant environmental concerns such as alteration of aquatic ecosystems, water rights conflicts, and risks of flooding during construction or operation. These impacts vary with geography and local ecosystem sensitivities but are generally more pronounced where sensitive aquatic resources exist or where river diversion is necessary.
In contrast, closed-loop PSH systems, which operate off-stream and are not continuously connected to natural water flows, tend to have more localized and shorter-duration environmental effects. These systems are often found to have lower aquatic and terrestrial impacts because they do not interfere directly with natural water bodies. However, in certain regions where closed-loop projects rely on groundwater or involve underground reservoirs, impacts on geology, soils, and groundwater resources may be higher than open-loop projects. These impacts are particularly relevant in areas with vulnerable groundwater systems or specific geological sensitivities.
To summarize:
| PSH Type | Environmental Impact Characteristics | Regional Sensitivities |
|---|---|---|
| Open-loop | High aquatic ecosystem disruption, water rights conflicts, flood risks | Regions with sensitive rivers, aquatic habitats, and competing water uses |
| Closed-loop | Localized impacts on soils, geology, groundwater where groundwater used | Areas with vulnerable geology and groundwater resources |
Therefore, regions with delicate aquatic ecosystems, complex water rights, or flood-prone areas tend to experience higher environmental impacts from open-loop pumped hydroelectric facilities. Meanwhile, regions with sensitive groundwater or geological conditions may face higher localized impacts from closed-loop facilities using groundwater.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/are-there-any-regions-where-pumped-hydroelectric-storage-facilities-have-particularly-high-environmental-impacts/
