Safer, greener power supplies for Macquarie huts

A new modular power supply system promises a safer, more environmentally friendly way of delivering power to Macquarie Island field huts. The system includes solar and wind generation capability to minimise fuel usage in the relatively untouched Macquarie environment.

The modules are a response to a Tasmanian government report on the condition of the island’s field hut electrical systems, including fuel storage, and consequent health, safety and environmental issues. The first two modules were installed last summer at Bauer Bay and Green Gorge, and three more will be delivered to Brothers Point, Hurd Point and Waterfall Bay field huts in 2001–02. The ‘remote area power systems’ can generate power from three sources — petrol, sun and wind — and store it in batteries. They feature self-contained weatherproof accommodation, external to the huts, for all power needs.

The modules incorporate batteries, petrol generator, fuel storage, refuelling pumps, solar panel, wind generator using a collapsible mast, instrumentation for monitoring battery condition and charging, full electrical protection, and capacity to drop out to protect battery cells from excessive discharge.

The modules can easily be transported by helicopters when necessary. An identical unit is kept at the station for training and spares. Installation is easy: they are levelled using adjustable feet, tied down with guys, the mast is raised and cables rolled out to the hut. Maintenance and access are straightforward, with all parts consistent between installations and careful attention to corrosion proof fastenings.

Glenn Scherell
Electrical Projects Manager,
Australian Antarctic Division

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