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Green building design

Ensuring effective internal energy management

Energy efficiency

Although originally included as part of its environmental programme, Teréga wanted to make energy efficiency an objective in its own right. This issue concerns a specific management system created according to the ISO 50001 frame of reference, and has been certified since 2014.

The management system aims in particular to optimise energy consumption and costs in a sustainable, efficient manner.

The actions put in place by Teréga to limit greenhouse gas emissions (particle emissions, venting, etc.) significantly contribute to bringing energy use under control in our activities. The improvement objectives developed as part of this optimisation also involve taking into account energy criteria in the design and purchase of equipment. In this way, energy considerations are included from the design phase in projects, with research done to find the best available techniques in terms of energy efficiency.

All of these actions contribute to modernising Teréga's production facilities, and enable the company to provide the same business activity while optimising its energy consumption.

• For sustainable construction

In recent years, when constructing new buildings, Teréga has adapted a forward-looking, ecological and sustainable approach.

Teréga’s aims

In the construction of its buildings, Teréga has set itself a number of requirements to satisfy:

  • worksites which respect the environment and neighbours;
  • successful integration into the countryside;
  • plus de confort et moins de consommation d’énergie ;
  • Using renewable energies (installation of photovoltaic panels)
  • the choice of high-quality materials.

The NF mark for tertiary sector buildings, awarded to several of Teréga’s recent projects, – the HQE® (high environmental quality) process – demonstrates that the certified work has been planned, designed and completed in accordance with the requirements of the certification. The HQE process, which relies on an operation management system (SMO), involves meeting fourteen targets aimed at creating a healthy and comfortable internal environment for users, limits on the building’s impact on the environment (waste, carbon emissions etc.) and the reduction of energy and water requirements.

Work completed by Teréga

2008 : New buildings constructed at Le Houga (32) outside the Lussagnet storage centre, they are the first buildings in the Midi-Pyrénées to receive HQE® (High Environmental Quality) NF certification for “tertiary sector buildings”.

2011 : The new premises in the town of Cugnaux (31), built to accommodate the teams in the Toulouse region, are HQE® and BBC (Low Consumption) certified, and meet the criteria for a positive energy building. Once more, they are the first buildings of this kind in the Midi-Pyrénées region.

2015 : Our new head office, an environmentally-friendly building

Teréga's head office aims to be an exemplary environmental model, as the outcome of a HQE® (high environmental quality) process.

An ambitious energy efficiency goal has been set: 60% below the RT2012 requirement (2012 thermal regulations).

We made some significant choices, right from the design stage:

• A ring-shaped building to optimise the ratio of the façades per square meter of floor space built (<0.60), thus limiting surface-related heat loss to the exterior.

• Extensive glazed façades to allow for maximum natural light and the expected levels of comfort at work.

• Bioclimatic solar protection adapted to the exposure of each office. The slats of the blinds are positioned according to a very precise calculation for bioclimatic optimisation, to prevent over-heating from the summer sun while allowing passive sunshine to enter in winter. As such, the rotation of the slats varies depending on which way the room faces, forming, around the ring of the building, inside and outside, a gradual slant giving a sense Movement suspended on a breath of air.

a visible concrete structure for thermal inertia.

• 400m² of photovoltaic panels.

In addition, the project includes the recovery of rain water in a 50m3 tank, used to supply the toilets and urinals with raw water.

The construction of the head office forms part of the overall energy efficiency improvement programme developed by Teréga.

The HQE system requires that three of the fourteen targets should receive a “high performance” rating, meeting the highest criteria in that area.
The targets upon which Teréga focused, and which receive the “high performance” rating for the two buildings are:

  • low-impact building site: in accordance with its policy across all sites (pipe-laying in particular), Teréga made sure that waste management was optimised, that the consumption of resources was limited, and that there was no pollution. The assessment after eleven months of building work (24,000 hours) was very positive, with zero accidents and zero pollution;
  • energy management: as an energy transporter, Teréga is exemplary in this field and demonstrates its attention to the good management of resources. Restriction of the building’s energy needs was assured in the first place by optimal insulation. Its efficiency has been demonstrated by the excellent results of air-tightness tests (50% of recommended threshold). The installation of photovoltaic panels (900 m² at Le Houga, 300 m² at Cugnaux and 400 m² at Pau Volta) allows electricity to be generated, offsetting some of the consumption;
  • operating waste management: by applying the working methods in place across all its sites (more than 80% of waste from Transport activities recycled in 2010), Teréga guarantees high performance in this field.

Map of installations

Map of installations

List of Teréga territories operating in the 15 departments of the South West

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