Summary

The Energy³ megaUHTS is a modular thermal energy storage system capable of storing 40 MWh in a 40 foot shipping container and is charged using electricity. The Energy³ megaUHTS offers a low-cost route to mass energy storage on the giga-watt scale.

Benifits

• This 40 MWh of thermal energy can be extracted as heat and hot water, or electricity if coupled with a gas or steam turbine.
• Can be integrated with district heating schemes to provide heating and hot water.
• Chargeable in 30 minutes with a 67 MW connection.
• Competing electrochemical energy storage systems that provide electricity have limited lifetimes (approximately 10 years). The thermal energy storage system is predicted to last 25 - 100 years.

Technology

The Energy³ megaUHTS is heated up to 900°C. A unique insulation structure ensures that so little heat escapes that the surface is safe to touch. Heat is extracted by a solid-to-gas heat exchanger. When needed, the heat from the Energy³ megaUHTS drives a turbine and generator to produce electricity.

Technical Details

• The core of the Energy³ megaUHTS has an energy density over 800 kWh/m³ exceeding existing electrochemical technologies
• Excellent thermal insulation with a maximum energy loss of 220 kWh per day, (less than 0.6% per day).
• Response time to produce electricity can range from 15 mins with a gas turbine to 45 mins with a steam turbine.
• Electricity generation efficiencies up to 62% due to high temperature storage.
• Fitted with low-pressure loss, high effectiveness, solid-to-gas heat exchangers.