Case studies

The conversion of the Paraparaumu Sewerage Sludge Drying Plant from diesel to wood will offer Kapiti Coast District Council the opportunity to slash its fuel costs at the site from the current level of around $575,000 in 2008, to as low as$115,000 in the first year of operation.

This report details the commissioning and monitoring of a wood chip blower system used by HA Foote Haulage supplying wood chips to Tahuna Intermediate School in Dunedin.
Wood chips are blown into a fuel bunker using a wood chip blower system taking 30 minutes to deliver 9 m3 of wood chips from the truck.

Five New Zealand schools have opted to heat their pools using solar energy resulting in an extended swimming season and warmer pool water. Find out about Coroglen School (Thames-Coromandel); Glamorgan School (Auckland); Matawai School (East Cape); Sefton School (Canterbury); and Whau Valley School (Northland) and their choice to warm their pools with solar heating.

Aspec Properties, a property management company, owns 57 Wellington Street in central Auckland. It is a three-story glass and steel office block that has overtime become very energy inefficient due to being reconfigured to each tenants' needs with little consideration for the impact on energy use.