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Brenmiller Energy Ltd.
Brenmiller Energy Ltd. commercializes thermal energy storage for industrial decarbonization, led by founder Avi Brenmiller.
Brenmiller Energy Ltd.
Avi Brenmiller, a former Babcock & Wilcox executive with decades in the thermal power sector, founded Brenmiller Energy in 2012 after recognizing that industrial heat — responsible for nearly a quarter of global energy consumption — lacked a viable storage solution. The company went public on the Tel Aviv Stock Exchange in 2019 and trades on the NASDAQ via an ADR listing, though its primary operations remain concentrated in Israel and Europe. Brenmiller Energy deploys its bGen thermal storage system, a modular unit that uses crushed volcanic rock as the storage medium. Customers include industrial facilities seeking to replace fossil-fuel boilers, utilities integrating concentrated solar power, and district heating networks. Notable projects include a 24 MWh installation at the University of Salerno in Italy and a collaboration with Siemens Gamesa for green hydrogen production. The company targets the global industrial heat market, estimated at over 1,500 TWh annually, prioritizing Europe and the Middle East. The firm has raised approximately $50M in equity and grants since inception, including a $10M grant from the Israel Innovation Authority and a 2022 funding round that included institutional investors. As of mid-2024, the company employs roughly 40 people, split between research and development in Rosh HaAyin and project execution teams in Europe. Brenmiller Energy has not disclosed a formal family office or asset management affiliate. Unlike most thermal storage startups that focus on grid-scale electricity storage, Brenmiller Energy's structural bet is on direct industrial heat replacement — a harder to decarbonize segment that still relies on coal and gas boilers. The bGen system's ability to reach 750°C and produce steam positions it for cement, chemicals, and food processing, markets where electrification remains uneconomical. This focus on industrial thermal storage rather than power markets differentiates Brenmiller Energy from peers like Malta or Energy Vault.
General information
Firm type
other
Year founded
2012
AUM
Undisclosed
Location
Region
Middle East
Country
Israel
City
Rosh HaAyin
Corporate office
Rosh HaAyin, Israel
Principals
Avi Brenmiller
Founder & CEO
Dr. Gadi Hareli
Chief Technology Officer
Sector focus
Frequently asked questions
How does Brenmiller Energy's bGen system differ from battery storage?
The bGen system stores energy as heat in crushed volcanic rock rather than in electrochemical batteries. It can hold thermal energy at temperatures up to 750°C for hours at low loss, and release it as steam or hot air — matching the output of fossil-fuel boilers. Batteries are better for fast-responding grid applications; bGen targets the industrial sector where heat, not electricity, is the primary energy input.
Which industrial sectors can use Brenmiller Energy's technology?
The bGen system is designed for heat-intensive industries including cement, chemicals, food and beverage processing, paper and pulp, and refining. A typical installation replaces 50–80% of a factory's natural gas or coal consumption for process heat. The company has publicly disclosed pilot projects with cement producers and district heating networks in Europe.
How is Brenmiller Energy financed?
The firm has raised roughly $50 million in equity and non-dilutive grants since its founding, including a $10 million grant from the Israel Innovation Authority and a 2022 private placement. It trades publicly on the Tel Aviv Stock Exchange and as a NASDAQ ADR. Brenmiller has not disclosed any relationship with a single family office or ultra-high-net-worth family.
Is Brenmiller Energy a single-family office or an operating company?
Brenmiller Energy is a publicly traded operating company — specifically an industrial technology developer and manufacturer. It is not structured as a family office. While founder Avi Brenmiller likely retains a significant ownership stake, the firm's capital structure, governance, and public disclosure obligations are those of a publicly listed industrial company.
What is the geographic focus of Brenmiller Energy's projects?
The company's primary market is Europe, driven by policy mandates for industrial decarbonization and high natural gas prices. Key project locations include Italy (University of Salerno), Spain (with Siemens Gamesa), and Israel. The firm has stated interest in the Middle East and North Africa for solar thermal integration but has not disclosed active projects there as of mid-2024.
Who competes directly with Brenmiller Energy in thermal storage?
Direct competitors include Rondo Energy (based in the US, uses brick-based storage), Kraftblock (Germany, uses ceramic pellets), and Antora Energy (US, uses carbon blocks). Unlike these firms which typically target power markets, Brenmiller Energy focuses on industrial steam production. Larger industrial equipment companies like Siemens and GE have thermal storage r&d programs but have not commercialized competing products.
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