# bGen™ Thermal Energy Storage Technology | Brenmiller Europe

> Developed over more than 10 years, bGen converts electricity into stored thermal energy and dispatches industrial steam, hot air, hot water or thermal oil on demand.

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Publisher: Brenmiller Europe S.L.
Contact: info@bren-europe.com

## Proven Thermal Energy Storage. Engineered for Impact.

More than a decade of thermal energy storage development, proven across industrial and utility deployments.

## Charge. Store. Dispatch.

Developed over more than 10 years, the bGen™ system is a solid-state thermal energy storage solution engineered for high efficiency, durability and industrial-scale operation.

At the core of bGen™ is a modular thermal-storage unit filled with crushed rock—an abundant, stable and non-toxic storage medium capable of repeated thermal cycling at temperatures up to 650°C (1,200°F).

Electricity from renewable generation or the grid is converted into heat by embedded electric heaters and retained inside a highly insulated vessel. When industrial demand calls for energy, bGen™ dispatches the stored heat as high-temperature steam, hot air or thermal oil. This allows energy purchasing to be separated from heat consumption while maintaining the temperature, pressure and availability required by the industrial process.

The modular architecture scales from individual industrial installations to large energy infrastructure. Minimal moving parts support low maintenance and a long operating life, while fast response and integrated controls enable load shifting, demand management and coordinated operation with renewable generation, batteries and the grid.

The technology has been deployed across industrial and utility settings, including Enel in Italy, the Tempo brewery, SUNY Purchase College with the New York Power Authority, and FORTLEV in Brazil.

## How we build a bGen™ system

A bGen™ installation is configured around the customer’s heat demand, operating profile and available electricity supply. Modular storage units, electric charging, heat exchangers, process integration and digital controls are engineered as one operating system.

## Powered by bGen™

Transforming electricity into dispatchable industrial heat—the foundation that lets Brenmiller Europe optimize electricity and heat together. Energy can be charged when renewable production is available or electricity prices are favorable, stored safely as heat and dispatched when the industrial process needs it.

## Generation flexibility. Operational flexibility.

Consume, generate, store and shift energy according to cost, availability, reliability and carbon intensity. Bi-directional optimization supports predictable energy pricing for industry while creating valuable flexibility for the grid.

## Complete energy freedom

One partner for clean electricity and industrial heat—built, owned, operated and optimized end to end. Brenmiller Europe combines bGen™ with generation, flexible assets and digital control to deliver resilient energy infrastructure at the best available market cost.

## Technical specifications

- Storage capacity: 10 MWh – 500 MWh
- Charging load: 2 MW – 100 MW
- Heat output: 1 MWth – 80 MWth
- Temperature range: 100°C – 500°C
- Efficiency: Up to 97%
- Design lifetime: 30 years
- Energy density: 300 kWh/m³

## Industrial manufacturing capacity

Produced at a dedicated thermal energy storage manufacturing facility with capacity to support deployment of up to 4 GWh of thermal storage annually.

## Frequently asked questions

### What does bGen™ use to store thermal energy?

bGen™ uses crushed rock inside an insulated, modular thermal-storage unit. The rock retains heat until energy is needed by the industrial process.

### How is the bGen™ system charged?

Embedded electric heaters convert electricity from renewable generation or the grid into heat. The insulated storage vessel retains that heat for later use.

### What forms of heat can bGen™ supply?

bGen™ can support industrial steam, hot air, hot water and thermal oil applications. The installation is engineered around the customer’s process requirements and heat-delivery conditions.

### Why separate electricity charging from heat delivery?

Thermal storage allows energy to be charged when renewable electricity is available or electricity prices are favorable, then dispatched when the industrial process needs heat. This separates the timing of electricity purchasing from heat consumption.

### How is a bGen™ installation configured for a site?

The configuration starts with the customer’s heat demand, operating profile and available electricity supply. Modular storage units, electric charging, heat exchangers, process integration and digital controls are engineered together as one operating system.

## Public project references

- [TEMPO](https://www.bren-europe.com/projects/tempo/): The TEMPO project uses bGen™ thermal energy storage to convert electricity into dispatchable industrial steam.
- [ENEL](https://www.bren-europe.com/projects/enel/): The ENEL project demonstrates bGen™ heat-to-heat storage, receiving thermal energy and dispatching industrial steam.
- [NYPA / SUNY Purchase](https://www.bren-europe.com/projects/nypa/): The NYPA and SUNY Purchase project demonstrates bGen™ thermal storage integrated with utility and campus heating infrastructure.
- [Wolfson Hospital](https://www.bren-europe.com/projects/wolfson-hospital/): The Wolfson Hospital project uses bGen™ ZERO power-to-heat storage to support continuous steam and hot-water demand.
- [PPF](https://www.bren-europe.com/projects/ppf/): PPF combines electrical charging, grid balancing and dispatchable industrial process heat through thermal storage.

## Related sources

- [Brenmiller Europe overview](https://www.bren-europe.com/index.md): Brenmiller Europe provides low-carbon industrial Heat-as-a-Service by designing, financing, building and operating integrated renewable-energy and bGen™ thermal-storage systems.
- [Industrial heat solutions](https://www.bren-europe.com/solutions/index.md): Brenmiller Europe offers industrial heat through Heat-as-a-Service or bGen™ equipment purchase.
- [Contact and site assessment](https://www.bren-europe.com/contact/): Contact Brenmiller Europe at info@bren-europe.com about Heat-as-a-Service or bGen™ equipment purchase.