Gravitricity

As the world generates more and more electricity from intermittent renewable energy sources, there is a growing need for technologies that can capture and store energy during periods of low demand and release it rapidly when required.

Gravitricity is developing a novel storage technology that offers some of the best characteristics of lithium batteries and pumped storage. 

Ideally suited to network-constrained users and operators, distribution networks and major power users, the technology operates in the 1 MW to 20 MW power range and enables existing grid infrastructure to go further in a renewable energy world. 

Gravitricity™ technology has a unique combination of characteristics:

• 50-year design life – with no cycle limit or degradation
• Response time – zero to full power in less than one second
• Efficiency – between 80 and 90 percent
• Versatile – can run slowly at low power or fast at high power
• Simple – easy to construct near networks
• Cost-effective – levelised costs well below lithium batteries

Each unit can be configured to produce between 1 and 20 MW peak power, with output duration from 15 minutes to 8 hours.