Affordable electricity 
when the wind is not blowing and the sun is not shining.

👇 See from the video how Energiasalv mitigates climate change 👇

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Energiasalv is a 550MW underground battery to be built in Paldiski. When renewable energy is produced more than is consumed, Energiasalv stores renewable energy by pumping water from underground reservoirs into Paldiski Bay. If there is less wind and solar energy than consumers would need, Energiasalv provides electricity to the power grid by releasing water from Paldiski Bay back into underground reservoirs.
  

During the nominal operating cycle of 12 hours, Energiasalv provides 6 million kWh of previously stored electricity to the grid, which is somewhat more than the average daily electricity consumption of all Estonian households.

Energiasalv water storage technology is currently the most affordable technological solution for controlled electricity generation and storage in the world, the introduction of which will significantly reduce the electricity price of peak energy and thereby reduce the cost of electricity for households and businesses.

  • The development of Energiasalv project began in 2009.
  • Energiasalv is co-financed by the Connecting Europe Facility of the EU
  • Power of 500MW
  • One cycle storage capacity 6000 MWh
  • Annual electricity production on the wholesale market 1.2TWh
  • Construction period 2023-2029, commissioning in 2029
  • Investment of 650 million. EUR

Energiasalv is a 550MW underground battery in Paldiski that is to be commissioned in 2029.

Performing deep geotechnical drillings of the Estonian 500-megawatt Pumped-Hydro Energy Storage in Paldiski marks as a next significant executive milestone of this strategic energy project with strong positive socio-economic impact. Solely the construction process of this natural battery will account for about 7% of the total volume of Estonian infrastructure construction in eight years, creating approximately 700 direct and indirect jobs and tax revenue for the state worth of 200 million euros.

EU supports the Estonian Pumped-Hydro Energy Storage project

Energiasalv Pakri’s 500MW pumped-hydro energy storage project is one of the EU 8 key energy infrastructure projects and the only Estonian project that received funding from the Connecting Europe Facility CEF programme under the 2019 CEF-Energy call.

Estonian Pumped-Hydro Energy Storage (Estonian PHES) Project studies’ Grant Agreement signed

The Innovation and Networks Executive Agency (INEA), under the powers delegated by the European Commission, and Energiasalv Pakri OÜ have signed grant agreement for conducting studies necessary to commence the construction works of Estonian PHES. The scope of envisaged studies entails geological investigations, Front-End Engineering Design (FEED) and environmental studies required to obtain building permit. The cost of proposed studies is up to 2,37 m€, up to 50% of which will be co-funded by INEA. The studies shall be completed by 31.03.2021 the latest. Estonian PHES is an innovative energy storage facility, which will significantly facilitate Estonian transition towards carbon neutral economy by enabling higher uptake of renewable energy into the energy system.

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