In order to maintain our status as a carbon neutral business we monitor, manage and annually report on our carbon footprint. Using the methodology and conversion factors given at www. carbonfootprint.com, our carbon emissions for the current financial year increased by 56% to a total of 1 186 tonnes (2013/14: 759 tonnes) of carbon dioxide equivalents (CO2e). Our expansion into energy intensive knit fabric manufacture, yarn manufacture and sublimation, accounts for the increase in our carbon footprint increasing to 1.36 kg CO2e per employee hour worked (2013/14: 0.84 kg CO2e).
To remain a carbon neutral business, we offset our carbon emissions by annually planting trees through a certified carbon-trading programme managed by Trees for Africa. At R50 a tree, we will spend a total of R160 650 in the coming year on planting 3 213 trees to offset our emissions for the year. In addition, our waste management programme costs us approximately R9 000 per month, after adjusting down for the income generated from recycling.
national power utility in South Africa. The residual 4% relates to the non-renewable fuels used in our fleet of vehicles, the paraffin used in the boiler at our Elsies River facility, and local and international business flights.
Electricity and solar power
We buy 97% of our electricity from South Africa’s power utility provider Eskom, while the other 3% we produce ourselves via our own 30 kWp solar photovoltaic (PV) plant at Maitland. Extrapolating the growth in our knitwear fabric and socks manufacturing divisions, by next year we anticipate using three times the amount of electricity than when we first installed our solar PV generating plant at Maitland.
We are concerned with our increasing dependence on Eskom, in particular the production losses we experience during load-shedding. We are also aware of the environmental impact of using power generated from the coal-fired national grid. Given these concerns, we are investigating increasing our own power-generating activities (see accompanying text box).
We source all our water from local municipal supplies. Water is mainly used for human consumption such as drinking, washing hands and flushing toilets, but also for cleaning. Only a small quantity of water is used during our production processes for ironing. All used water is discharged into the municipal sewage system and we have no facility to recycle water.
WasteAn external contractor monitors, manages and recycles waste on our behalf. Hazardous waste Although limited in total volume consumed and/or disposed of, hazardous materials are often used in our manufacturing facilities, particularly in the maintenance and operation of the facilities and equipment. The total volumes are minimal. However,Impahla continues to monitor the handling, storage and disposal of all solvents, lubricants and other hazardous materials.
Although limited in total volume consumed and/or disposed of, hazardous materials are often used in our manufacturing facilities, particularly in the maintenance and operation of the facilities and equipment. The total volumes are minimal. However, Impahla continues to monitor the handling, storage and disposal of all solvents, lubricants and other hazardous materials.
In total, we used 2 700 litres of petrol and 7 000 litres of diesel during the year in our vehicles, a slight reduction over the previous year, as a result of tighter control over delivery routes and production planning, as well as reflecting the consolidation of our production lines in fewer facilities. This is the first full year for incorporation into our system of the paraffin-fuelled boiler powering the Elsies River sock production plant. When the 16 000 litres of paraffin is added to petrol and diesel consumption, our total fuel usage rises by 44%. Usage intensity, measured against employee hours worked, has risen by 81%.
Within the forthcoming year, we expect this figure to rise even further as we anticipate taking our first steps towards installing diesel-powered generators to ensure an uninterrupted power supply to our production facilities.