The MEE participants are using the information provided by the analysis to improve their networks. These case studies provide further insight into how mobile operators have used this information to benefit both the company and the environment.
Cascadiant, Warid Telecom and the GSMA collaborated to perform a MEE Optimisation project in Pakistan in 2013. The project was conducted on ten cell sites across various geographies in Pakistan, and the technical solutions were trialled on four cell sites. These included a General Electric Durathon deep cycle battery, Coolsure high efficiency telecom air-conditioners and a Ballard methanol fuel cell back-up power system. The trial demonstrated significant energy savings of between 30 and 60 per cent. When rolled out across Warid’s network in Pakistan, the annual savings are expected to be more than US $6 million and 19,700 tonnes of carbon dioxide emissions, with 14-18 month financial paybacks.
Serving two million customers, Digicel Jamaica is the flagship Digicel franchise in the Caribbean region. The company has committed itself to reducing energy costs and slashing its carbon footprint, taking numerous steps to become a truly green company.
Since 2002, Telefónica Uruguay has rolled out a series of energy efficiency initiatives across its network, resulting in cumulative cost savings of € 4.2 million at 2012 prices and carbon emission reductions of 10,900 TCO2e, as part of an energy and carbon reduction programme. The implementation of these measures is reflected in Telefónica Uruguay’s performance in the GSMA’s Mobile Energy Efficiency Benchmarking service.
Since 2006 Vodafone Romania has been closely managing its energy consumption and purchasing policy. At the end of 2011, it decided to implement a free cooling system that was particularly innovative. In one building alone this system has resulted in annual costs savings of € 13,700, and carbon emission reductions of 54 TCO2e. A roll out of the system for four other locations is planned, starting in 2013, with a projected investment cost of € 127,000, annual costs savings of € 43,000 and annual carbon emission reductions of 215 TCO2e.
Over the past two years Australian operator Telstra has implemented mobile energy efficiency initiatives across its network, resulting in annual cost savings of A$ 1.5 million and carbon emission reductions of 6,700 TCO2e. With its strong emphasis on sustainability, the company has been measuring and reporting its carbon emissions since 2000. In 2010 Telstra decided to implement significant measures to capture the benefits offered by mobile energy efficiency solutions. The impact of this successful energy reduction programme is noticeable in Telstra’s results from the GSMA’s Mobie Energy Efficiency Benchmarking with strong improvements in RAN energy per connection, per cell site and per unit traffic.
Telefónica was keen to improve its ranking in MEE Benchmarking. It became the first mobile network operator to sign up to the GSMA’s MEE Optimisation service, leveraging the combined expertise of the GSMA and Nokia Siemens Networks’ Energy Solutions. The aim was to identify further cost savings in the radio network, in addition to the measures Telefónica Germany was already implementing. This resulted in € 1.8 million per year in cost effective energy savings being identified.