Main Environmental Impacts of Pumped Hydro Storage
Overview
Pumped hydro storage (PHS) is a significant component of renewable energy systems, providing large-scale energy storage. However, it has several environmental impacts that need consideration:
1. Alteration of Natural Water Courses
- The construction of dams and reservoirs for pumped hydro storage can alter natural water flows and river ecosystems, affecting both physical and ecological characteristics of the area.
2. Habitat Disruption
- Large reservoirs created for pumped hydro storage can lead to the displacement of local communities and wildlife, disrupting existing habitats and potentially causing ecological imbalances.
3. Water Evaporation and Loss
- In areas with reservoirs, especially in arid regions, water evaporation can be a significant concern, leading to water loss and affecting the system’s efficiency and water resource availability.
4. Geological and Soil Impacts
- Closed-loop pumped hydro storage projects, not connected to natural water bodies, may have localized geological and soil impacts due to their off-stream design. This includes potential effects on groundwater and soil stability.
5. Greenhouse Gas Emissions
- While pumped hydro storage has lower greenhouse gas emissions compared to other energy storage technologies, emissions still arise from construction materials like concrete and the energy mix used to pump water.
Mitigation Strategies
- Closed-Loop Systems: These systems can minimize aquatic and terrestrial impacts compared to open-loop systems by not being continuously connected to naturally flowing water bodies.
- Brownfield Sites: Utilizing brownfield sites for pumped hydro storage can reduce environmental impacts by repurposing existing landscapes rather than developing new ones.
- Technological Advancements: Incorporating advanced technologies and site selection algorithms can help identify suitable locations and reduce environmental disturbances.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/what-are-the-main-environmental-impacts-of-pumped-hydro-storage/
