A homeowner in East Hampshire has replaced a traditional gas boiler with a Zero Emission Boiler (ZEB) that uses thermal battery technology. The system charges during off-peak electricity hours to store heat, reducing carbon emissions and lowering energy bills. This technology provides a flexible heating option for homes where installing heat pumps is impractical or too expensive. By utilizing off-peak power, these heat batteries help balance grid demand while decarbonizing residential heating.
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Thermal storage is a solid bridge for older homes with poor insulation where heat pumps struggle. I wonder what the actual payback period is compared to a standard boiler upgrade.
The off peak charging is the real win here. If we get enough of these, it helps flatten the peak load. I just want to see the discharge rate and how long it actually keeps the house warm during a cold snap.
Interesting to see an MP highlighting this. The success of these systems depends on whether the current subsidy framework supports thermal storage as much as it does direct electrification via heat pumps.
Story about a resident in Alton using a tepeo ZEB heat battery to ditch their gas boiler. It uses off peak electricity to store heat. Worth a look for anyone who cannot fit a heat pump.
