BT hopes to reduce its energy bills by £13 million a year by implementing a new smart energy management and control system across its offices, telephone exchanges and data centres.

The new system will also help the company reduce its carbon footprint by five percent, or 60,000 tonnes of CO2 a year. BT’s emissions are currently at 1,258,720 tonnes of CO2 according to the first Carbon Reduction Commitment (CRC) Energy Efficiency Scheme league table.

In the first publication of the annual CRC performance league table the Department of Energy and Climate Change (DECC) ranked BT joint 44th out of 1,301, alongside The Co-operative Group and East of England Co-operative Society. The better the organisation performs in terms of reducing emissions, the higher its position is on the annual league table.

BT is installing more than 22,000 smart energy meters, around 1,500 building energy management systems and an advanced control network over broadband to monitor and control more than 90 percent of the company’s energy use. The systems will allow BT will make sure that systems such as heating and air conditioning are working efficiently.

The smart meters monitor the company’s energy use in all its key buildings and telephone exchange sites, and provide real-time reporting data to an energy management system.

This central software-based system will record energy usage information it receives from the smart meters, and other sources such as invoices and building energy management systems. BT will then use this data to forecast its energy use and requirements, and to identify opportunities where it can decrease its carbon footprint and energy costs.

Richard Tarboton, director of energy and carbon at BT, said: “Having real-time energy usage information for thousands of buildings at our finger tips will really help us drive down BT’s carbon footprint and energy bills.

“Thousands of smart meters placed at BT offices, telephone exchanges and data centres will help us monitor energy usage levels and identify areas where we can deliver savings and make buildings more efficient.”

BT plans to roll out smart energy management systems globally in 2012. The company has a long-term goal to reduce its carbon footprint by 80 percent by 2020, compared to 1997 levels.