A significant portion of energy consumption in float glass manufacturing is from grid power. Manitoba's investment in hydro-electric generation over the past several decades has resulted in a portfolio that comprises over 96% renewable energy (1), far greater than the energy portfolio in other jurisdictions with a float glass manufacturing sector.
Natural gas is required for heating the furnace to melt silica sand and other raw materials. An industry-leading glass manufacturing facility incorporates an efficient furnace utilizing best available technology and waste heat recovery. Further alternatives to lowering the carbon intensity of float glass manufacturing are available and will be explored by Wanipigow Glass in the facility's detailed engineering phase.
Recognizing and accounting for embodied carbon (emissions) from manufacturing plays an important role in our transition to a low-carbon, sustainable society and will form a critical element of future development guidelines and standards.(2) Wanipigow Glass has the potential to set a new standard for low-carbon float glass manufacturing.