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Food processing

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Fonterra - cheese production more efficient thanks to heat recovery

By recovering heat from refrigeration condensers certified for potable water, Fonterra Te Roto is getting hot water at its Kapiti site. It's cut energy use by 605 MWh a year, stabilised production and made plant start-up faster - with CO2 emissions down by 116 tonnes every year.

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 Image of Fonterra - Te Roto site.

Ashburton Meat Processors - using heat pump technology to heat water

Ground-breaking heat pump technology is giving Ashburton Meat Processors more hot water than it needs, thanks to recovered heat from refrigeration. The company's not only saving more than $250,000 a year, it's also done away with light fuel oil which has halved CO2 emissions.

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Image of an electric motor.

Silver Fern Farms - bio-fuel from waste water

New technology is turning sludge from waste water into a valuable bio-fuel for a Southland meat processing plant. Silver Fern Farms' Finegand plant now has a bubbling fluidised bed boiler, saving money and the environment.

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Photo of Fineguard Plant

Auckland Meat Processors - automated cleaning

Auckland Meat Processors is using an automated cleaning method to clean some of its Otahuhu factory's moving processing tables. As well as reducing GHG emissions, the new method saved more than $200,000 in the first financial year.

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Auckland Meat Processors

Bakels edible oils - biofuel from waste oil

Mt Maunganui manufacturer Bakels Edible Oils has installed a dual-fuel boiler that has reduced natural gas use by using the factory's waste for fuel. The factory burns all its waste vegetable oils and tallow, and the new boiler has reduced their CO2 emissions by 1,378 tonnes per year.

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Photo of duel-fuel boiler

Tegel Foods - heat recovery saves money and CO2

Tegel Foods uses waste heat to pre-heat its hot water supply, saving more than $110,000 a year in gas and electricity. Much of the recovered heat comes from the refrigeration process at their New Plymouth poultry plant. The new system is also cutting the factory's carbon dioxide emissions by more than 600 tonnes a year.

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Tegel Foods

Hawkes Bay Protein - heat recovery delivers savings

Meat renderer Hawkes Bay Protein installed a second vacuum condenser in addition to its existing condenser to recover ‘stickwater' energy previously lost to atmosphere. As a result the company is saving $33,000 a year, with the project expected to pay for itself in just over three years.

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HB Protein

Gelita - heat pump delivers savings

Gelita installed a hot water heat pump - and is saving about $230,000 p.a. in the process.

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Gelita

Goodman Fielder - boiler tune-up produces significant savings

Just five months after Goodman Fielder had the boilers at its Meadow Fresh dairy plant serviced, another simple burner tune-up delivered savings of $45,000 per year.

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Goodman Fielder case study