Case studies

The Lazy Shag backpackers in Kaikoura has had a multi-oil clean burn boiler installed to supply the hostel's hot water, slashing the business's electricity bill.

The boiler is fired with used cooking oil purchased at low cost from other local businesses. The reduction of the backpacker's carbon footprint sits well with Kaikoura's, and the country's clean green image.

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.

Winemakers Pernod Ricard are set to cut their natural gas bill by $21,000 a year thanks to a new hot-water boiler at the company's Auckland wine-bottling plant.

The $55,000 Northvale boiler is used to heat water for cleaning the equipment at the plant. It is almost 12% more efficient than the steam boiler it replaced, and it is expected to reduce the amount of natural gas the company uses by 479,000 kWh a year.

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.