Industrial

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  • South Island oil boiler conversion feasibility study report
    Research and reports
    20 January 2010

    East Harbour Energy was commissioned by Fonterra to carry out an assessment of the feasibility of converting the energy supply at their Tuamarina, Kaikoura, and Culverden milk processing plants from diesel or LFO to wood fuel.

    This report investigates the site requirements, the regional wood fuel supply, suitable boiler plant, consenting issues, risks, benefits, and provides a financial assessment of conversion.

     

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  • Guidelines for payment of wood fuel by energy content
    Research and reports
    23 August 2010

    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.

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  • Waipa Sawmill co-generation case study
    Research and reports
    18 July 2007

    The Waipa sawmill near Rotorua has been generating its own electricity for over 50 years, cutting its costs and returning power to the national grid.

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  • Blue Mountain Lumbar
    Research and reports
    18 July 2007

    Blue Mountain Lumber is a sawmill located in Southland, New Zealand. The sawmill was expanded in 2000 to enable the processing of approximately 160,000 tonnes sawlogs annually. Prior to expansion the sawmill operated with several small wood residue fuelled boilers that were at the end of their economic life. The site was dumping significant quantities of woodwaste into a local landfill.  As part of the expansion an energy facility was built to provide improved steam quality and capacity for increased steam loads.

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