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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11BrenX Ltd. reported on September 9, 2026, that it had received a construction permit and begun on-site work on a 12 MWh bGen thermal energy storage project at Wolfson Medical Center in Holon, Israel. The company says the system is intended to replace the hospital’s fuel-oil boilers and supply steam and hot water. The announcement describes a project under construction, not a completed or operating installation.
What BrenX is building at Wolfson
The project is a bGen thermal energy storage installation with a stated storage capacity of 12 MWh. BrenX’s September 9, 2026, SEC-filed release says the construction permit was received after June 30, 2026, and that on-site work had commenced by the time of the release. It does not give an exact construction start date. BrenX’s SEC-filed announcement is evidence of what the company reported, rather than independent confirmation of project performance.
MWh measures stored energy, not the rate at which the system can deliver it. The 12 MWh capacity therefore should not be read as a 12 MW output rating. BrenX did not state a thermal output rating or discharge duration for Wolfson, so the capacity figure alone does not establish how quickly or for how long the system can supply heat.
What hospital services the system is meant to support
BrenX says the installation is designed to replace Wolfson’s fuel-oil boilers and provide steam and hot water for hospital operations. Those are the project’s stated design purposes; the construction announcement does not report that the boilers have been displaced or that the new system is supplying heat to the hospital.
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The company describes bGen as a modular system that stores heat in crushed rock and uses heat-exchange tubing. Its presentation says stored heat can be dispatched as steam or heat when a customer needs it, while electricity can be used for charging when advantageous. These are company descriptions of the technology; the cited materials do not establish Wolfson-specific efficiency, operating conditions, or fuel savings. BrenX’s June 2026 company presentation provides its overview of bGen.
What is known—and not yet reported—about construction
The September 9 announcement establishes a permit and on-site construction activity by that date. It does not provide a completion date, commissioning schedule, project cost, or measured operating results at Wolfson.
- Reported: a 12 MWh project, construction permit received after June 30, 2026, on-site work underway by September 9, and intended boiler replacement with steam and hot-water supply.
- Not reported for Wolfson: thermal output, discharge duration, commissioning status, project economics, operational performance, or measured fuel and emissions savings.
Those missing details matter when evaluating a thermal storage project. Capacity alone does not show the useful heat delivery rate, how long delivery can be sustained, how the installation is integrated with existing hospital systems, or what savings it achieves.
Tempo is a separate project, not proof of Wolfson performance
BrenX has also reported progress at Tempo Beverages, a separate site with a larger 32 MWh system. On March 2, 2026, the company said construction there was complete and start-up and commissioning had begun, including charging, functional validation, steam-output testing, and optimization. BrenX’s March 2026 Tempo update describes that commissioning stage.
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In a June 1, 2026, update, BrenX said the Tempo system was connected and had begun supplying steam during commissioning, with delivery expected to rise gradually during a planned ramp-up. BrenX’s June 2026 Tempo update reports progress at that site only. It does not establish Wolfson’s construction status beyond the later permit and on-site work announcement, nor does it demonstrate how Wolfson will perform.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to look for in future project updates
A useful evaluation will need more than the storage-capacity figure. Future Wolfson updates would be more informative if they disclose:
- the system’s thermal output and how long it can deliver heat at that rate;
- charging source and operating schedule;
- steam conditions and the hospital systems being served;
- integration with existing boilers and any backup provision;
- commissioning and operational status; and
- measured fuel use, emissions, and project cost or savings.
Until those details are reported, the most supportable description is a permitted, under-construction thermal storage project with a stated 12 MWh capacity and a planned hospital steam-and-hot-water role.
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