BrenX Ltd. (NASDAQ: BRNX), a provider of thermal energy storage and integrated industrial energy solutions, has reported preliminary operating data from its flagship industrial project at Tempo Beverages in Israel indicating potential customer energy cost savings of approximately $1.0 million annually if current performance is sustained. The announcement, detailed in a release covered by NEWMEDIAWIRE, comes as European natural gas prices hover near four-year highs, sharpening interest in alternatives to fossil-fuel boilers for industrial steam production.
At Tempo Beverages, BrenX's 32 MWh bGen™ thermal energy storage system is supplying steam at a cost the company says is about 40% below a modeled heavy fuel oil steam baseline, based on preliminary operating data reported on November 4, 2026. For the five operating days from October 25 to 29, BrenX estimates net energy cost savings for Tempo were about $18,200, or about $3,640 per operating day. The annual estimate assumes 280 operating days a year and is net of annual maintenance costs, and the company estimates Tempo could save approximately $15 million over 15 years under comparable operating and energy-pricing conditions.
The cost savings follow strong production results. On October 15, BrenX reported that the Tempo system had reached approximately 85 tons of steam per operating day during commissioning, about 21% above the project's base case of approximately 70 tons. BrenX is targeting full replacement of Tempo's steam demand, and steam sales above the contracted minimum can generate revenue beyond the baseline in the project's financial model. The company said in mid-October that it was nearing completion of commissioning at Tempo, which would position the project to move into commercial operation.
BrenX also developed a digital platform that gives Tempo live access to the system's steam output, electrical power, pressure and temperature, along with charging costs, energy savings and avoided carbon emissions. A built-in savings calculator lets users model results under different electricity tariffs. BrenX said that for a company introducing a new kind of industrial energy system, that transparency can help shorten the sales cycle by allowing plant managers and CFOs evaluating bGen™ to see preliminary operating data indicating potential customer energy cost savings.
The timing of the preliminary data works in BrenX's favor. In late October, the Dutch TTF benchmark for European natural gas rose above 100 euros per megawatt-hour, its highest level since 2022, according to Trading Economics. For European manufacturers that burn gas to produce steam, those prices flow directly into operating costs. One way to counter that is through electrification. Nearly 40% of fossil-fuel-based low- and medium-temperature industrial heat could be electrified cost-effectively, according to a recent report from the International Energy Agency, which pointed to thermal storage as an "increasingly promising" solution, with food processing and dairy among the industries best suited for electrification.
Tempo is the first proof point in a broader strategy for BrenX, which rebranded from Brenmiller Energy in August and has expanded its focus to developing, owning, operating and optimizing energy assets that may combine local generation, electrical and thermal storage, grid connectivity and intelligent energy management. In Hungary, BrenX owns and is operating a 1.2 MWp solar facility in Kaposszekcső and has signed a definitive agreement to buy adjacent land for its planned first integrated energy resource center. In Israel, construction is underway on a 12 MWh bGen™ system at Wolfson Medical Center in Holon, designed to replace the hospital's fuel-oil boilers and expected to save approximately $1.5 million in annual energy costs once operational. In September, BrenX also signed a settlement with the European Investment Bank to eliminate approximately $4.8 million of debt.
The next milestone for investors is the completion of commissioning at Tempo and the start of commercial operations, followed by validation of sustained operating performance and customer savings. As detailed in a report published on Benzinga, BrenX now has a working industrial installation and preliminary operating data indicating approximately 40% lower steam energy costs compared to a modeled heavy fuel oil baseline. For investors, Tempo offers the clearest measure yet of what the bGen™ technology could deliver commercially, as the company works to validate sustained operating performance and customer savings.
