Articles and insights.
Perspectives from the Aeterno team on building performance, the energy transition and decisions backed by evidence.
Two Estates, One Spreadsheet
Two social housing estates in the same English city, compiled from the public record and priced home by home. At today's prices, 91 homes on one estate pay back a whole-home retrofit inside fifteen years. On the other, two do.
Outcomes, Not Equipment
The sector's own guidance now tells social landlords to specify heat pump performance outcomes and verify them after install. The numbers behind that advice deserve a close read: seasonal performance is not a product property but a prediction, home by home, and delivery decides it.
The Homes Moved On. The Records Didn't.
Social housing plans its next decade of investment on energy records that predate a decade of works. Re-deriving the baseline, home by home and with provenance, changes what the plan says, and what it costs.
The Certificate and the City
We modelled one certified 8.5 kW air source heat pump in 24,931 London homes, a full year, hour by hour. The median home delivers 3.6 against the certificate's 5.0.
The Same Problem, Three Times Over: Why Buildings, Heat Pumps, and Home Energy Need Governed Intelligence
Buildings, heat pumps and home energy are hitting the same wall: plenty of data, and no continuous account of what was decided and whether it worked.
The Golden Thread and Building Intelligence
The Building Safety Act asks for auditable decision trails and continuity of record. Meeting it takes proof of why you acted, and that is what a governed record holds.
The Commissioning Quality Gap
Public field data shows a wide spread in heat pump performance. Most of that gap is made at commissioning, and closed by fast verification.
What Is Governed Intelligence?
Governed intelligence keeps decisions, the reasoning behind them and their outcomes on one record, so operational data becomes action you can stand behind.