Diesel Generator Consenting

Client: PowerGen Group
Date: 2014

The Christchurch earthquakes caused widespread damage to many of the buildings and infrastructure across Christchurch and the wider Canterbury region.  As a result, a large number of buildings are being demolished and rebuilt to modern design and construction standards.

As part of the rebuilding programme, several business and organisations are taking the opportunity to increase the resilience of their operations by including a dedicated diesel generator in their new buildings.  The generators are used for emergency electricity generation during periods of a network outage, and to supply electricity to the network during periods of peak network demand.

We were engaged by PowerGen Group Ltd to prepare an assessment of effects (AEE) and consent application to gain consent for a 451kW diesel-fuelled generator for Environment Canterbury’s (ECan) newly constructed Christchurch office.

As the generator was to be located within the polluted Christchurch airshed, an air discharge consent could only be granted if the discharge would not increase the concentration of PM10 by more than 2.5 micrograms per cubic metre beyond the property boundary

Air dispersion modelling was carried out based on the proposed location, engine, installation details and planned operating envelope to determine the likely concentrations of pollutants at the site boundary.  This confirmed that the engine emissions met all applicable standards resulting in the air discharge consent being granted.

Key Aspects:

  • Air dispersion modelling
  • Evaluate and prepare an assessment of environmental effects
  • Seek and obtain consent

Client: PowerGen Group
Date: 2014

PM10 concentrations as modelled by the AERMOD air dispersion modelling software package

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