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Renewables integration

Hydropower has a central role to play in the lower carbon grids of the future.

The adoption of renewable, clean energy is integral to delivering the Paris Agreement, which aims to keep the global temperature rise this century to well below 2°C on pre-industrial levels.

Hydropower remains the largest source of renewable electricity generation. It represents 16.6 per cent of global electricity production, more than all other renewables combined, and will play an important role in the energy transition.

Although hydropower is currently by far the largest source of renewable power generation, wind and solar power are expected to grow to overtake it in the future, although this will take some time.

Flexibility and storage

Hydropower helps to maintain the stability and reliability of power supply systems by offering flexibility to balance the variability of other renewables, while storing energy in reservoirs.

At the same time, hydropower infrastructure is vital for the provision of climate adaptation water services, providing water for irrigation and municipal supplies, while reducing the risks of flood and drought.


IHA is supporting renewable energy technologies working together with partners such as the International Energy Agency, the International Renewable Energy Agency, REN21, REN-Alliance, the 100% Renewables campaign, and the World Energy Council.

We are actively engaged in developing publications, workshops, webinars and events highlighting hydropower as a vital component of future energy systems.

Continue reading about our Clean Enery Systems programme.