As Britain continues to cut its carbon emissions, there is a growing need for new grid-scale electricity storage. Quarry Battery Company's (QBC) vision is to bring pumped storage back to life by using abandoned quarries all over the country as ready-made reservoirs of energy. This requires two quarries, one located at a higher altitude than the other.The battery charges by pumping

water to the upper quarry when the grid has spare electricity. It releases it at peak times. QBC is now developing a 50MW energy storage facility at Glyn Rhonwy, Llamberis in North Wales, based on this pumped storage battery concept. Glyn Rhonwy is a blueprint for a new generation of storage schemes, using simple and known technologies in innovative ways and in unconventional locations.