Pumped Storage Forum

The International Forum on Pumped Storage Hydropower is a government-led multi-stakeholder platform to shape and enhance the role of the 'world's water batteries' in future power systems.

Launched in November 2020 by the International Hydropower Association (IHA) and chaired by the U.S. Department of Energy, the Forum brings together governments, industry, financial institutions, academia and NGOs to share their experiences and build best practice.  

Through convening three industry-led working groups, this year-long initiative will develop guidance and recommendations about how sustainable pumped storage hydropower (PSH) can best support the energy transition.

International partnership

The initiative brings together 11 governments – the USA, Austria, Brazil, Estonia, Greece, India, Indonesia, Israel, Morocco, Norway and Switzerland - international financial institutions, and over 70 organisations, including leading energy companies such as including EDF, GE Renewable Energy, Voith and Hydro Tasmania.

Forum's steering committee:
Sponsoring partners:

About pumped storage

Pumped storage hydropower (PSH) is the world's largest battery energy storage technology, accounting for over 94 per cent of installed energy storage capacity. IHA estimates that PSH projects now store at least 9,000 gigawatt hours (GWh) of electricity globally. Learn more.

The technology has proven to be an ideal solution to the growing list of challenges faced by grid operators over the past year. As the transition to a clean energy future rapidly unfolds, this flexible technology will become even more important for a reliable, affordable and low carbon grid. Read IHA’s recent blog to learn more.

View IHA's Hydropower Pumped Storage Tracking tool.

First meeting

The International Forum on Pumped Storage Hydropower first convened on 3 November 2020.

Read the meeting agenda
Watch the first meeting in full in video
Download the slides
Download the Forum's Terms of Reference

Latest news

2 Nov 2020 - Forum to tap hydropower’s potential as a clean, green battery

3 Nov 2020 - Forum to shape the future of pumped storage hydropower

Get in touch

Sign-up to our mailing list to register your interest and to receive email updates.

Forum partners

A-Z list of partners



Andritz Hydro

Australian National University 

Banco Nacional de Desenvolvimento Econômico e Social (Brazil)

British Hydropower Association

Cambridge Institute for Sustainability Leadership

Clean Energy Council

Clear Peaker Ltd

Colombian Energy and Gas Regulation Commission (CREG)

Ecole Polytechnique Fédérale de Lausanne


Ellomay Capital Furnas


GE Renewable Energy

Global Energy Interconnection Development and Cooperation Organization (GEIDCO)

Genex Power

Grupo de Estudos do Setor Elétrico (GESEL)

Gulf Cooperation Council Interconnection Authority

Hydria Participações e Investimentos S.A.

Hydro Power Association of Uganda

Hydro Tasmania




International Commission on Large Dams

IEA Hydro

IHE Delft

Indian Institute of Technology, Roorkee

Independent Power Transmission Operator S.A.

Indian National Hydropower Association

Intelligent Land Investment Group 

International Institute for Applied Systems Analysis

Jacobs Engineering Group

Moroccan Agency for Sustainable Energy

McWilliams Energy


Mott MacDonald

Nanjing Hydraulic Research Institute

National Hydropower Association (USA)

New and Renewable Energy Development Corporation of Andhra Pradesh (NREDCAP)

New Energy Horizons

Norwegian Energy Partners

Oceanus Power & Water, LLC

Pacific Hydro Chile

Pacific Northwest National Laboratory

Power System Operation Corporation Limited



Premium Energy Holding LLC


Public Power Corporation

Pumped Hydro Storage Sweden AB

Renewable Energy Holdings

Research Centre for Alternative and Renewable Energies (CREAR)

RMT Consulting

San Diego County Water Authority


SMEC India Southern Company


Sun Hydro LLC

Terna Energy

The Energy and Resources Institute (TERI)


Voith Hydro


WaterPower Canada









Privacy Policy