Passive House
Comparing Net Zero Energy homes to Passive House solar gain designed homes: a head-to-head analysis
...Energy home
The Zero-Energy principle (i.e. producing as much, or more, than is consumed) allows for all kinds of renewable energies: thermal and photovoltaic solar panels, geothermal energy, wood pellet heating, wind turbines, solar water heaters, etc.
For example, 90% of the hot water needs of the Abondance le Soleil...
