The energy performance of third parties, GMS and residential housing

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The Orygeen teams have worked on:

The replacement of interior and exterior lighting of a commercial surface and associated warehouses in the East of France.

 The elaboration of an energy strategy for long term electricity provision in order to lower the price volatility of specialised distributors.

The realisation of a 1 MW project in parking shelters at a commercial centre in Provence-Alpes-Cote d’Azur.

The implementation of a solar panel on traditional slate roof at a university in the Hauts-de-France.

The renovation of a heating, ventilation and air conditioning system of 2500 m2 over various levels in the Lyon region.

The occupants of third party buildings, the big and medium commercial surfaces and operators of residential housing face three main areas to improve their energy performance when needed 

  • the lighting,
  • the CVC (heating, ventilation and air conditioning),
  • the photovoltaic solar plants on a self-consumption

The improvement of the energy performance of a third party site, GMS or residential housing must rest on an approach entirely adapted to each site’s needs and constraints.

The lighting pictogram

1. The lighting


The installation of LED allows the realisation of significant energy efficiency progress, the choice of LED solutions, their implementation and the associated monitoring system will have a real impact on the investment carried out, the quality of lighting and savings made.

One of the key challenges is the monitoring of consumption according to land use and the exterior lighting in order to minimise unnecessary consumptions.

Example in a supermarket of the region of Hauts-de-France: implemented LED lighting to replace the traditional one in order to save over 60% of the lighting consumption.

2. The heating, ventilation and air conditioning (CVC)


The heat pumps are amongst the best solutions in terms of energy efficiency for both heating and cooling of buildings.

The development of heat networks, particularly coming from recovered heat, corresponds to a demand which touches on both local solutions of production and energy consumption.

Whatever the installed solution, a GTB monitoring (Building’s Technical Management) allows the optimisation of energy expenditure.

Example in a residential housing of an Alpes ski station: install two air/water heat pumps at 1800 meters of altitude.

The photovoltaic on site pictogram

3. The solar


Whether we install a solar farm on the simple terraced roofs or those with more complex architecture, the production of electricity is an area in which the energy performance of a building is now sustainable.

We can also place solar panels on the facade of a building, even if this type of technical solution has a higher cost.

The sustainability of a shading project installed on a nearby parking lot mixes energy interest and a strategy integrating the notions of service and company’s image with regards to its consumers, customers and employees.

In all cases, we must:

  • consider a photovoltaic installation as an investment as the energy produced is decarbonated, recoverable and sought after, therefore it is not just a cost like others,
  • implement the conditions for its long-term valorization (legal framework, choice of adapted technologies, intelligent dimensioning of a solution),
  • maximise the revenues by opting for the best value option, the conditions of valuing evolving quickly, driven by technical progress and the modification of the legal framework.

Example in a commercial centre in the region of Provence-Alpes-Cote d’Azur: installation of 500 kWo of parking shelters to produce renewable electricity and communicate on the responsible commitment of the brand.

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