UK-based John Mccall Architects set out to build a home in West Kirby that was simple, with a gentle environmental impact, and reasonable price tag. The house was well insulated, attracts optimum solar gain and two years after its construction is more efficient than it's designer had dreamed.
The home is four times better than a German Passivhaus residence —which it was built to follow—with its energy costs equating to just over $22 per year or less than $2 per month:
A simple masonry and concrete structure with triple glazed windows, passive orientation and an air source heat pump, the home has a rooftop solar array that almost completely offsets its annual energy consumption of 3453 kWhrs with 3338 kWhrs of clean energy. And this is in the UK, which is not known for its endless days of blazing sunshine.