These Guidelines provide a common methodology for classifying, specifying and declaring the quality and properties of wood fuel in New Zealand. The Classification Guidelines have been produced as a voluntary industry standard and have been prepared to meet specific New Zealand requirements. The parameters set out are based on formal international standards that have been modified to meet New Zealand needs.
Forestry and wood processing residues are a potentially significant source of bio-energy fuels. For a variety of reasons storage of these materials prior to utilisation is often necessary. The storage of comminuted (chipped, hogged, shredded or reduced to small particle size by other means (sawing or sanding)) biomass, particularly fresh (green) material such as logging residues can lead to degradation of the fuel due to biological and thermo-chemical processes.
Wood used for energy does not fit well with a payment system that works using non-energy (eg. volume or weight). The energy content of wood is closely related to moisture content, and this can vary substantially, depending on the origin and storage history of the material. This study looks to determine the effects of moving from a weight-based payment system to a specific energy-content-based payment system at a large industrial site, using woody biomass as a fuel source on a large scale.
Wood fuel is a renewable energy source that plays a big part in New Zealand's energy supply. This is set to increase in the future and, as with any energy source, the environment effects of need to be taken into consideration. One of those effects is the discharge of particulate emissions to air.
The National Policy Statement for Renewable Electricity Generation (NPS REG) was developed to support the Government's target that 90 percent of electricity generation be from renewable sources by 2025 (in an average hydrological year) providing this does not affect security of supply. This document is intended to assist the implementation of the NPS REG by providing an explanation of the technical terms and concepts used in the NPS REG. It is intended for use mainly by local government decision makers, but also the general public.