20
| 14TH - 20TH DECEMBER 2018 | UTILITY WEEK
High viz High viz
The Harvard Center for Green Build-
ings and Cities has completed the
retrofitting of its headquarters in a
pre-1940s building in Cambridge,
Massachusetts, into an ambitious
energy-positive prototype for ultra-
efficiency that will help us to under-
stand buildings in new ways.
Targeting the most rigorous
efficiency standards ever achieved
by a building retrofit, HouseZero has
almost zero energy required for heat-
ing and cooling; 100 per cent natural
ventilation; 100 per cent daylight
autonomy (no daytime electric light);
and zero carbon emissions, including
embodied energy in materials.
The building will adjust itself sea-
sonally, and even daily, to reach ther-
mal comfort targets for its occupants.
Positive prototype
Operations & Assets