Guidance

Home Energy Model: technical documentation

Technical documents providing detail on the Home Energy Model methodology.

• From: Department for Energy Security and Net Zero
• Published: 13 December 2023

Documents

HEM-TP-01 General summary of core calculation

PDF, 174 KB, 11 pages

HEM-TP-02 General summary of wrappers

PDF, 155 KB, 8 pages

HEM-TP-03 External conditions

PDF, 170 KB, 9 pages

HEM-TP-04 Space heating and cooling demand

PDF, 554 KB, 16 pages

HEM-TP-05 Fabric heat loss

PDF, 292 KB, 16 pages

HEM-TP-06 Infiltration and ventilation heat loss

PDF, 818 KB, 34 pages

HEM-TP-07 Thermal mass

PDF, 250 KB, 11 pages

HEM-TP-08 Solar gains and shading

PDF, 195 KB, 10 pages

HEM-TP-09 Energy for domestic hot water

PDF, 165 KB, 9 pages

HEM-TP-10 Ductwork and pipework losses

PDF, 268 KB, 14 pages

HEM-TP-11 Hot water storage tanks

PDF, 339 KB, 13 pages

HEM-TP-12 Heat pump methodology

PDF, 438 KB, 30 pages

HEM-TP-13 Storage heaters

PDF, 285 KB, 12 pages

HEM-TP-14 Boiler methodology

PDF, 400 KB, 21 pages

HEM-TP-15 Heat batteries

PDF, 175 KB, 12 pages

HEM-TP-16 Heat emitters

PDF, 275 KB, 14 pages

HEM-TP-17 Controls

PDF, 198 KB, 13 pages

HEM-TP-18 PV generation and self-consumption

PDF, 382 KB, 15 pages

Details

We will update and add to this technical documentation throughout the model development process.

These technical documents have been published alongside:

• the Home Energy Model consultation

Published 13 December 2023