optimizing energy consumption

In August 2004, the ‘Centre Est’ Network Unit of Orange France launched the first solar-powered transmitter, located at the Summit of the Pic Blanc (3,330m altitude) at the Alp d’Huez ski resort, and covering stations in the Oisans serving tourists, guides and first aid specialists. Powered by 52 solar panels – 40m2 of photovoltaic cells – it provides 10 days of power, even without sunshine.

A “network energy” working group identifies the best energy performance practices implemented within the Group, and is testing out a number of promising new possibilities. These include optimized ventilation, a solution patented by France Telecom, making it possible to harness the drop in temperatures overnight and the thermal inertia of buildings. In this way, it avoids the need to use a cold production system and the associated cooling gas emissions, while reducing power consumption by six to seven times compared with standard air-conditioning units. At the end of 2006, 230 sites in France had optimized ventilation systems.

We are also taking part in the ETNO energy working group, making it possible to share best practices with other businesses from our sector. In 2006, we contributed to the development of a best practice guide for energy performance in the telecoms industry.