To meet the challenges faced by the energy system, Pumped Hydro is developing a new technology for the resource-efficient storage of energy. Green energy, such as wind and solar power, is irregular and often produces a surplus, and this surplus can then be stored and used when there is greater requirement or an energy shortage.

Our solutions include technology for renewable energy storage, as well as IT systems based on Machine Learning (ML) to optimise how the available energy can be used in the best way. Pumped Hydro Storage aims to be a leading international supplier of cost-effective new pumped-storage power plants, and of Smart-Grid and optimisation services for pumped-storage and hydroelectric power plants.

The electricity market requires a constant balance between production and consumption, but achieving this balance is complicated as renewable energy, such as solar and wind power, is introduced.

We develop technology for efficient energy storage 

- part of the smart power grid.

Pumped-storage power plants is a technology that has long been used to store energy. However, it only works close to water reservoirs. These only exist in a few locations around the world, and establishing new ones is difficult, in addition, it is not a sustainable alternative for the future.


Conventional hydropower plants collect water in a lake or reservoir at a higher altitude. From there, the water is sent downwards to drive a turbine that generates electricity. Pumped-storage power plants have both an upper and a lower reservoir. The water is stored in an upper reservoir and sent via a turbine to the lower reservoir when electricity is needed, for example when the sun is not shining or the wind is not blowing. In a pumped-storage power plant, the water can be pumped back to the upper reservoir when there is an excess of energy.

How we store energy in our pumped-storage power plants:

  1. Excess energy in the power grid is used to pump water up to the reservoir.

  2. When an energy shortage occurs, the water is vented back through the turbine, which then sends out energy to the electrical grid.