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National Facility for Pumped Heat Energy Storage

The Sir Joseph Swan Centre for Energy Research at Newcastle University hosts the National Facility for Pumped Heat Energy Storage.

Pumped Heat Energy Storage (PHES) is a flexible and low-cost per unit technology for storing energy at grid-scale.


Unlike other energy storage technologies the solution means that energy can be delivered when required as either/or as a combination of high-grade heat, cryogenic thermal energy or electricity.

Based on the results of a series of prototype systems developed and tested by Isentropic Ltd., a £15m investment from the ETI (Energy Technology Institute), the world’s first 150kW/600kWhr grid-scale demonstrator was designed, manufactured and installed on site.

In August 2016, the National Facility for Pumped Heat Energy Storage was opened to showcase the technology and demonstrate its potential in terms of efficiency and flexibility of low-cost storage.

The grid-scale demonstration is currently under final commissioning with performance testing continuing over the summer of 2017.