High-view Power Storage, Inc. and Encore Renewable Energy have announced today the plans to develop the first long-range, liquid air energy storage system. In the north of Vermont, the plant will have a cumulative 50 MW, with a storage capacity for eight hours (400 MWh).
The Vermont project will help address the long-standing energy transmission issues facing the state-owned Sheffield Highgate Export Interface and help to incorporate excess electricity from renewable energy sources, such as solar and wind, into the electricity grid.
The Highview Power and Encore project will provide essential transmission system services to help incorporate renewable energy, maintain a regional electricity grid and ensure future energy security during storms and other disturbances, in addition to providing safe, efficient and cost-effective energy storage. Such facilities provide the arbitration of the business, frequency control, reserve management services, and grid restriction management services.
With the liquid storage solution for air energy from Highview Energy, excess energy or off-peak power is used to clean and compress air and then store it in liquid form at temperatures below zero Fahrenheit (-196 C) in insulated tanks. If power is in great demand and is more precious, the pressure gas will warm-up, transform a turbine as it rises and therefore generates energy, which can be used at peak times when the sun does not glow and the wind does not whistle.
Proper, low-risk, validated technology for Highview Power’s patented fluid air storage system produces zero emissions, has null water effect and could be supplied at around half the current costs in the case of conventional lithium-ion batteries. At the energy level, the long-term energy storage systems combined with renewable energy are equal to the fossil oil-powered baseline and thermal energy.