Industrial heat generation accounts for about 10% of global greenhouse gas emissions, surpassing the combined pollution from all cars, planes, and ships. Despite this, efforts to decarbonize industries like steel, cement, and glass have largely overlooked heat production. Electrification, the current green alternative, faces challenges such as grid constraints, high electricity costs, and difficulty reaching ultra-high temperatures. Meanwhile, traditional fossil fuel combustion remains environmentally costly and increasingly untenable as regulations tighten.
Brenmiller Energy Ltd. (NASDAQ: BNRG), an Israel-based thermal energy storage (TES) provider, is emerging as a key player in addressing this gap with its bGen TES platform. The patented solid-state heat battery uses crushed volcanic rock to store low-cost renewable electricity as high-temperature heat, releasing it on demand as zero-emission steam, hot water, or air. By avoiding critical battery metals and leveraging abundant materials, customers can charge the system during low electricity prices and discharge when demand and costs are higher.
To overcome upfront capital barriers, Brenmiller recently launched BNRG360, an energy-as-a-service model where the company develops, owns, and operates clean energy systems. This shifts Brenmiller from an equipment supplier to an integrated energy infrastructure provider, generating recurring revenues through long-term service agreements. The model is designed to deepen customer relationships and capture greater value over project lifetimes, potentially reshaping how investors evaluate the business as the installed base grows.
The TES market is projected to expand at a CAGR of 10% through 2032, reaching nearly $14 billion, driven by rising electricity consumption, industrial electrification, grid modernization, renewable energy penetration, and energy security concerns. Additionally, the surge in AI and data center demand is straining electrical infrastructure, increasing the need for flexible systems like TES.
Brenmiller has moved beyond concept to real-world application with Tempo Beverages Ltd., a 32-megawatt-hour TES installation that supplies continuous industrial process steam, fully replacing a fossil fuel boiler. The system, which began delivering steam in June, is expected to eliminate approximately 6,200 tons of CO₂ emissions annually. Brenmiller views Tempo as a pivotal commercial reference, demonstrating scalability under real-world conditions and serving as a blueprint for future projects. Performance data from Tempo is expected to bolster customer confidence and support further commercialization of the bGen platform.
Looking ahead, Brenmiller is focused on growth, cash flow improvement, and sustainable profitability, with additional customers anticipated for the BNRG360 platform and more project commissionings on the horizon. As industrial heat remains a significant decarbonization challenge, Brenmiller's bGen platform and service model position it to help companies transition away from fossil fuels.
