Returning Un-Returned Condensate to the Feed Water Tanks in Food Industry. Insulating the un-insulated pipes, fittings and tanks in food industries. Using Regenerative burners instead of conventional burners in Steel Reheating Industry. Transport. Transport sector is the largest energy consumer in 2018 with a share of 49%, however it is a primary infrastructure and service sector required to drive the wheel of growth for other economic sectors.