We will be integrating water and energy efficiency features into a new annex building, which began construction in February 2013. Sited next to our MiWorld building, the new annex building will be constructed with recycled materials and include environmentally-friendly features such as rainwater tanks, bicycle racks to encourage staff to cycle to work, and an all-LED lighting system.

Our environment

M1 is committed to complying with applicable environmental regulations where we operate. We are pleased to share that M1 has never been fined or otherwise sanctioned for any environment-related violations.

Our environmental footprint

In 2012, M1 used 51,546,565kWh of electrical power compared to 48,537,145kWh used in 2011, mainly for our mobile networks, office building and data centre operations.

The M1 vehicle fleet used 13,905 litres of petrol and 23,378 litres of diesel in 2012, a decrease from the 15,286 litres of petrol and 26,274 litres of diesel consumed in 2011.

Our three offshore base stations, at Raffles Lighthouse, St. John Island and Pulau Tekong, also use diesel for their on-site generators. Total diesel consumption at our offshore base stations was 76,424 litres in 2012, a decrease from 79,000 litres in 2011.

Water consumption in 2012 was 52,500m³, comparable to the 52,747m³ of water consumed in 2011.

Most of this water is drawn from the utilities company and used by staff for drinking, cleaning, as well as for our buildings' cooling equipment.

Our conservation efforts

Several conservation projects implemented over the last few years have helped to reduce M1's environmental footprint.

A solar power generation system was installed at our Raffles Lighthouse base station last year to reduce the diesel consumption of its power generators. This renewable energy initiative reduced the base station's diesel consumption by 53%, or 10,076 litres of diesel, last year.

Another energy efficiency initiative saw 2,300 fluorescent lights in our MiWorld building replaced with light-emitting diode (LED) bulbs in 2012. These power-saving lights have reduced the building's power consumption for lighting by an estimated 40% or 135,000kWh a year.

Building inspections to optimise lighting levels are also conducted regularly, to identify lighting fixtures that can be removed without compromising productivity. To date, 400 bulbs have been removed, delivering energy savings of 87,775kWh per annum.

M1's 2G base station modernisation programme in 2011 has also yielded significant energy savings. The programme, which saw 1,200 of our 2G base stations replaced with multi-radio ones that do not require air-conditioning, has resulted in a 35% or 6,876,600kWh annual reduction in the power consumption of M1's 2G network.

Additional conservation efforts include turning off the air-conditioning at M1's three corporate buildings - our Main Operating Centre and MiWorld Building at the International Business Park, and our Regional Operations Centre in Aljunied - after working hours and over the weekend in unoccupied office areas. Many of our meetings, including Board meetings, are also conducted without paper presentation materials.

Looking ahead, we will be integrating water and energy efficiency features into a new annex building, which began construction in February 2013. Sited next to our MiWorld building, the new annex building will include environmentally-friendly features such as rainwater harvesting tanks, bicycle racks to encourage staff to cycle to work, and an all-LED lighting system.

Energy consumption

	2012 (kWh)	2011 (kWh)
M1 buildings and data centre operations	27,156,707	25,659,067
Mobile networks	23,984,962	22,408,618
Retail outlets1	404,896	469,460
Total	51,546,565	48,537,145

¹ Estimated based on utility bills

Fuel consumption

	2012 (in litres)	2011 (in litres)
Diesel (offshore base station)	76,424	79,000
Diesel (fleet)	23,378	26,274
Petrol (fleet)	13,905	15,286