Resources
Documents on the Hestora domestic thermal energy store · Updated August 2026
Two things here: documents to read, and a portal to use. The documents set out what Hestora is, the real-home data behind its sizing, our running-cost and carbon modelling, and the route to market — including the monitored pilot beginning in November 2026. The portal is where you model a property yourself.
Read
Five documents · PDFName and email once, then all five open. Download and keep them.
General
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Open
Hestora White Paper — The Domestic Thermal Energy Store
How the pressurised water store works, the 6.4 million smart-meter readings behind its 40 kWh sizing, running costs against gas and heat pumps, and the route to market.
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Open
Analysis — EPC Ratings and Thermal Storage
What RdSAP 10 and the incoming Home Energy Model each actually do, with references, and what it means for anyone planning heating decarbonisation to 2030.
Sector briefings
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Briefing for Social Housing Providers
Hard-to-treat stock, tenant fuel-poverty protection, portfolio economics over a 30-year design life, and alignment with Warm Homes and the Boiler Upgrade Scheme.
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Briefing for New Build Developers
Meeting the Future Homes Standard: pairing the store with mandated rooftop solar, easing network-connection constraints, and commissioning in about a day.
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Briefing for Landlords & Owner-Occupiers
Replace the gas boiler with no outdoor unit and no new radiators, cut running costs with off-peak charging, and get ahead of the regulations.
Use
Partner portal · hestora-portal.netA separate sign-in from the one above. Sign in with your email address — we send you a link, there is no password to set up, and everything in the portal is then open to you.
Model your own property
Run a property through the government’s real Home Energy Model engine and see how it compares.
- Future Homes Standard target and property modelling
- Running costs against a gas boiler and a heat pump
- Technical knowledge base — nine reference documents
Questions, or interested in the pilot programme? Email hello@hestora.net.