Nearly zero-energy building means a building that has a very high energy performance, as determined in accordance with EEU paramenters. The nearly or very low amount of energy required should be covered to a very significant extent by energy from renewable sources, including energy from renewable sources produced on-site or nearby. InnovHousing using its techniques and materials conveniently achieves the definition and in some cases reaching – when off-grid systems are applied – the surplus energy building definition.
Here following a thermic camera comparison between a conventional house (left) and a NZEB house (right). The red color shows the amount of thermal dispersion, while the blue color reflects its thermal efficiency.