Pumped storage hydropower is a proven strategic asset for strengthening energy security and national energy sovereignty. It provides large-scale, long-duration energy storage, supports grid reliability and renewable energy integration, and reduces reliance on imported fuels and complex international supply chains.
This white paper from the Global Alliance for Pumped Storage (GAPS) explores how pumped storage can strengthen energy security and sets out seven recommendations for governments to maximise its contribution.
Recognise pumped storage as strategic national security infrastructure – Acknowledge its critical role in secure and resilient power systems.
- Assess the need and plan for energy storage – Define future storage requirements and establish appropriate capacity targets.
- Recognise pumped storage as strategic national security infrastructure – Acknowledge its critical role in secure and resilient power systems.
- Establish clear legal definitions of energy storage – Provide regulatory clarity and remove barriers to investment.
- Identify and prepare sites – Identify suitable locations early, considering future system needs and existing hydropower infrastructure.
- Streamline permitting and licensing – Introduce predictable, transparent and time-bound approval processes.
- Create an enabling investment environment – Establish policy and economic frameworks that provide long-term revenue stability.
- Remunerate pumped storage services – Ensure electricity markets recognise and fairly reward the full range of services pumped storage provides.
By addressing these priorities, governments can unlock investment, accelerate pumped storage development and strengthen the security, resilience and affordability of their energy systems.

