The more renewable energy is used, the more important it is to find innovative solutions for energy storage. Solar and wind power are often unreliable sources of energy. This is due to the variation in the amount of electricity produced in relation to consumer use being far too great. In addition, the power grid today has its own limitations, which means that we cannot transport electricity over great distances without expending too much energy. Primarily, it’s not the power shortage itself that drives the storage, instead it’s the power shortage and the challenges in the power grids. Therefore, more efficient ways of storing energy are needed.  

In order for the growth rate of green electricity to expand more rapidly, more resources need to be invested in environmental technology. Long-term work on climate issues requires innovative solutions for large-scale energy storage. Pumped Hydro Storage is an important player in the search for the solution to the complex problems that exist in the energy sector today and has developed the required technology.




Because of the climate change mitigation, the proportion of power coming from renewable alternatives is expected to be close to 30 percent and become the single largest energy source according to BP Energy Outlook 2019, 2019. With large-scale, weather-dependent energy production sources, volatility in the electricity price market increases, while there is an increasing need for frequency control in the power grids. Competitive energy storage should be inexpensive, highly efficient, able to respond quickly to changes in the power grid, have a long-life cycle with low environmental impact, maintain high power and a long discharge time. The only existing technology that meets these requirements is pump power utilizing underground mines. EASE (European Association for Storage of Energy) estimates that pump power plants on average are 70-80 percent more efficient than today’s alternative energy storage technologies.


Underground pump power meets all the requirements that are placed on the single most important type of energy storage that enables the transition to greener energy sources. Compared to competing technologies, pump power is the dominant method of storing energy with 94 percent of total capacity globally according to the International Hydropower Association, 2018. Between 2018 and 2040, the global energy storage market is expected to grow to 1,095GW / 2.850GWh [BloombergNEF]. Investments over the next 20 years are expected to reach $662 billion, which would correspond to over 50,000 large-scale pump power plants of 100 MW each. At the same time, there are hundreds of thousands of abandoned mines in the world that can be utilized for our large-scale solution.


Contact us today

If You have questions, don’t hesitate to contact us via the button below. 

Pumped Hydro Storage is proud to be working to achieve the following of UN's sustainability development goals

Tillgång till hållbar, tillförlitlig och förnybar energi och rena bränslen är en förutsättning för att kunna möta flera av de utmaningar världen står inför idag.
Innovation och teknologiska framsteg är nyckeln till att finna hållbara lösningar för såväl ekonomiska som miljömässiga utmaningar. Att investera i hållbara industrier, miljövänlig teknik och innovation är alla viktiga sätt att skapa förutsättningar för en hållbar utveckling.
Hållbar stadsutveckling omfattar hållbart byggande och hållbar planering kräver ny teknik och samarbete mellan flera sektorer. Innovativ stadsplanering behövs för att göra städerna säkra och hållbara för framtiden.
Vår planet har försett oss med ett överflöd av naturresurser, men vi människor har inte nyttjat det på ett ansvarsfullt sätt och konsumerar nu energi från fossila bränslen i alldeles för stora mängder. Det krävs en hållbar förvaltning och ett effektivt nyttjande av naturresurser.
Klimatförändringarna är ett verkligt och obestridligt hot mot hela vår civilisation. Utsläppen av växthusgaser fortsätter att stiga och effekterna är synliga redan nu. Grön energilagring är därför en nödvändighet för att klara omställningarna vi står inför.

This website or its third-party tools process personal data (e.g. browsing data or IP addresses) and use cookies or other identifiers, which are necessary for its functioning and required to achieve the purposes illustrated in the cookie policy. You accept the use of cookies or other identifiers by closing or dismissing this notice, by clicking the accpept button or by continuing to browse otherwise.