You can read more about the design and construction techniques used in zero-energy buildings.[0] They consider natural ventilation, sunlight, insulation, etc.

You can read more about the design and construction techniques used in zero-energy buildings.[0] They consider natural ventilation, sunlight, insulation, etc. in ways that conventional construction ignores. [0] https://en.wikipedia.org/wiki/Zero-energy_building https://en.wikipedia.org/wiki/Zero-energy_building