Case studies

St Helena Winery has installed a chilled water plant complete with two heat exchangers. The new equipment is making efficiency gains by reusing the waste energy generated by the refrigeration system, and it also provides improved temperature control during the fermentation process.

This project supports St Helena's desire to align their business with sustainable practises.

Southern Lakes Laundries has installed a high-efficiency heat exchange unit for their main industrial washing machine that is delivery savings of up to $45,000 a year.

Southern Lakes Laundries retrofited the heat exchanger into their existing equipment without any disruption to their 364 day a year operation.

The project payback period is approximately 2 years.

Christchurch specialty meats producer Verkerks is paying for a lot less energy after taking a fresh look at how it generates heat and processes waste.

By converting the boiler to burn tallow, a meat processing byproduct, Verkerks will likely cut their energy costs by $150,000 a year.

The boiler at the company's processing plant produces steam for heating the smoke houses and fermenting rooms, and water heating.

Until recently the boiler operated only on diesel, consuming around 7,000 litres - and thousands of dollars - every week.

Auckland Meat Processor's Otahuhu factory has implemented a new automated cleaning method to clean some of the plant's moving processing tables. It saved over $200,000 in the first financial year. And it is anticipated that it will return over $4.5 million in savings over a 10 year life cycle.

In addition to this, significant reductions in greenhouse gas emissions were also achieved.