Case studies

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.

Ernslaw Bio-Energy's new mobile wood chipper means the Central Otago company is well-placed to take advantage of an expected increase in the use of wood-chip boilers.

The company bought the $250,000 German-made Heizohack HM10-500 KT chipper and the John Deere 7530 tractor which powers it in 2008 with the help of a business grant from the Energy Efficiency and Conservation Authority.

At Mairehau High School, wellbeing comes first - and that includes providing a healthy and comfortable environment. With clean efficient wood energy delivering heat where it is needed, Mairehau High School students can learn at their best all year round.

Tachikawa Forest Products NZ Ltd in Rotorua committed to installing a 8MWth energy plant to be fired on waste-wood products to boost kiln drying capacity and clean up their waste disposal problem.
The majority of the biomass fuel required for the new 8MW th energy plant is created as a by-product of the manufacturing processes performed on the Tachikawa site.