Boilers

Thames Coramandel District Council installed a 200kW wood chip boiler at their Centennial Pool. This monitoring report outlines the reasons for the project, the issues with the installation, the savings made, and the expected payback of the project.

This study carried out by Aircomm Consultants Limited for Queenstown Lakes District Council investigates the feasibility of a district heating scheme to supply heating to Queenstown Airport, Lakes District Hospital, Alpine Aqualand (swimming pool) and the Queenstown Events Centre.

The centralised wood-chip boiler plant described in the study is not considered to be feasible in this situation.

Kapiti Coast District Council (KCDC) operates a sewage treatment works located in Paraparaumu. The works include a sludge drying plant that operates continuously. KCDC have installed a new wood fire boiler and this monitoring report gives an overview of the project.

Waste was one of the first considerations for Southern Pine Products when it started manufacturing MDF (medium density fibreboard) products.

The company opted to install a briquette press, which turns MDF dust into combustible briquettes for boiler fuel.

Moffatts Flower Company, a greenhouse complex only 5 km from Southern Pine, now buys all the briquettes the company produces.

The saving in Southern Pine's waste disposal costs is projected to be $180,000 a year and annual revenue from briquettes is projected to be around $25,000.