Some of the innovative energy solutions in the pipeline include:
Heat pumps: Air-to-water heat pumps and geothermal heat pumps
Heat pumps are efficient in more ways than one. With an air-to-water heat pump, it is the calories from the outside air that are used to heat the building.
With a geothermal heat pump, it is the heat energy from the earth’s subsoil that is used. The strength of the Rout Lëns geothermal network will lie in the use of the 5 underground car parks that will be used for the network of probes.
Heat recovery from greywater
One particularly innovative solution involves the heating network for the buildings using the residual heat from greywater (waste water from showers or sinks). This will generate a significant amount of heat, and could contribute up to 10% of the heat needed by inhabitants.
An urban heating plant
An efficient way of limiting infrastructure costs and streamlining consumption, the entire Rout Lëns heating network will be managed from a single heating plant. This will be able to distribute the heat supply according to demand at different times of the day and year. In order to meet demand at peak times, an urban wood boiler will be installed.
There are plans for the new buildings to be equipped with the latest home automation solutions. The goal is to tweak the equipment to optimise and limit energy requirements. Examples include automated shutters, smart lighting systems, smart radiator controls, air quality sensors etc.
BIPV (Building Integrated Photovoltaics)
Studies are looking at the use of BIPV, which could be used at specific locations on the site. This technology is designed to replace certain building materials, mainly glass, with photovoltaic cells. Each glass roof or window designed in this way captures solar energy to produce electricity.
In Rout Lëns, BIPV could complement the solar energy provided by the photovoltaic panels fitted on some roofs.