In the UK we find a simple house that works for $ 22 a year. A simple house in West Kirby, Wirral, built to a design standard developed in Germany in the early 1990s, known as’Passivhaus“.

Related: 8 houses that generate more energy than they consume.

The Usher family have lived in the house for two years and the bill for heat, electricity, hot water and cooking was “only $ 22 per year.”

A normal looking four room house built with masonry and concrete. But it keeps a great secret invisible to the eye, its energy efficiency is such that for its operation it only needs what a 40 watt bulb consumes.

There are only about 37,000 homes in the world built on the principles of this movement. The houses are oriented so that the windows and solar panels placed on the roof receive optimal sunlight. It has high ceilings and large spaces designed to let in as much natural light as possible. Only LED lamps are used for artificial lighting.

In two years of living there, the Usher family consumed 3,453 kWh of electricity per year, almost entirely covered by the energy generated by solar panels on the roof.

Insulation is also a fundamental point of this building standard, so windows are made of three panes of glass. The heating works thanks to a heat pump which captures the hot air from the outside, it works like a domestic refrigerator, but in reverse. It also provides hot water.

The house was built on a budget of $ 360,000 and won energy efficiency awards in England. The myth that green houses are “expensive and rare” is wrong.

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