NetZero Energy Houses
Buildings we live in consume a lot of energy – around 36 % of the total primary energy supply- which is contributing towards the degradation of the environment. Also, we are consuming largely fossil-fuels-based energy for our energy needs. To limit the use of the carbon-intensive energy sources in buildings, the concept of Net zero energy buildings is initiated in Morocco through the well-known international competition Solar Decathlon AFRICA; Which contributes in the future of sustainable design and directly impact tomorrow’s clean energy and green buildings workforce.
In order to lead the country towards a greener energy system, renewables have also to evolve in the other sectors of energy use: buildings, transports and industry. The use of renewable energies in Buildings and Transport sectors is still in the early stages and scarce supportive policies have been adopted by far.
The green buildings are the future buildings, they utilize clean sources of energy for their energy needs and do not put burden on conventional energy sources. They are also resource responsible from the design stage to the finished building. Green building is the practice of creating structures and using processes that are environmentally responsible and resource efficient throughout a building’s life-cycle over the course of their entire life: siting, planning, design, construction, operation, maintenance, renovation and demolition.
Net zero energy buildings
There have been attempts to define the NZEB concept but the most commun definition of a Net Zero Energy Building (NZEB) is a building that has zero net energy consumption and zero carbon emissions over the course of one year . The strategies for implementing NZEB is to first reduce the demand for energy through energy efficiency and then increase supply of energy from renewable sources, mainly from solar thermal and solar electrical systems. This reliance on active systems is assisted by control and monitoring systems such as the use of BACS “Building automation control system”.