Case studies

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.

People power is Telecom's greatest weapon in the battle for energy savings. A staff culture change and internal leadership is making the difference to their energy use. The Energy Manager works hard to get all staff on board via a number of different initiatives, including energy efficiency campaigns, the use of "Energy Rangers", energy audits and the use of different technologies to reduce energy use across this large corporate.

Woodbourne Air Base has cut energy costs by reducing peak electricity loads, carrying out a long-term energy savings programme and maintaining a passion for energy efficiency.

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.