Geoff’s house is a highly thermally efficient 8.8 star hemp house with exposed slab on ground and slab edge insulation. It uses passive solar design.
The main roof faces due north, tilted up at 20 degrees and is designed to take 20KWh of PV panels (it currently has 11KWh installed) and has 1.0m eaves to east and west.
There are south facing clearstory windows for summer ventilation plus a heat recovery ventilation system. All external windows and doors are double glazed with FSC hardwood frames.
I have both bottled gas and induction cooktops to provide resilience given that we are running a private electricity grid in our village with a central village battery which powers the village overnight.
