By law, all public buildings built in France in 2020 and beyond will have to conform to energy efficiency standards. Beyond that, municipalities are already getting progressively engaged in the construction of net-positive energy areas. New construction practices and energy recovery know-how are evolving to minimize energy footprint. High energy performance buildings have already seen their energy consumption reduced from 300 KWh/m2/year to 150 KWh/m2/year over the last twenty years.
In order to respond to environmental challenges, such as resources conservation and climate change , an eco-district should be able to:
- Reduce greenhouse gas emissions
- Optimize energy consumption
- Diversify energy sources
- Ensure an economical management of water resources
- Carefully use non-renewable resources
- Minimize waste production
- Conserve biodiversity
- Develop nature in the city
In line with the goal of creating eco-districts, Ennesys’ technological innovation, the Power Four Solution, appears to be the obvious solution to these economical and environmental issues. Indeed, Ennesys’ technological innovation recycles the neighborhood wastewater to grow micro-algae. Algae cultivation enables, on one hand, wastewater treatment, and on the other hand, the production of hydrogen, algae oil and biomass. Moreover, Ennesys’ technological innovation can be implemented directly on buildings or in their immediate vicinity.
In a theoretical model of a 10,000m2 building, a 4,000 m2 Ennesys’ Power Four Solution system can generate a combined heat and power energy equivalent to 44 kWh/m2/year. RT2012 requires buildings to have a maximum 50 kWh/m2/year primary energy consumption level.
In this model, Ennesys proposes an engineering service aimed at implementing its technological innovation, in collaboration with project managers and existing service suppliers.