Boilers

The Mt Maunganui-based facility has installed a dual-fuel boiler that has reduced natural gas usage by utilising waste products from their factory. Now they are burning all their waste vegetable oils and tallow. The new boiler reduces their CO2 emissions by 1,378 tonnes per year.

New technology is turning sludge from waste water into valuable bio-fuel with environmental and financial benefits for a Southland meat processing plant.

It's a bubbling fluidised bed boiler, well-proven overseas for its ability to handle low quality fuels. The 8.5MW unit was installed at Silver Fern Farms' Finegand plant by Energy For Industry under a build, own, operate agreement.

Wood fuel is a clean and renewable energy source. Burning wood fuel has a low net greenhouse effect as the CO2 given off is absorbed by the growth of the next crop. Wood fuel is playing an increasingly important role in
generating energy.

Wood fuel includes any woody biomass suitable for energy production, such as branches, bark and stem wood. The focus of these guidelines is on residues from landings - currently the largest unused source of woody biomass.