What we do
Power and Water Corporation distributes electricity across the Northern Territory - to an estimated 243 700 people spread across an area of 1.3 million square kilometres.
To do this we maintain more than 5600km of overhead lines, 1690km of underground cable and 37 500 poles and towers.
A 400km high voltage line delivers electricity from the Top End's major power stations, managed by Territory Generation, to Darwin and Katherine.
The environmental challenges we face in maintaining the network include cyclones, severe storms, damage from trees and wildlife, especially flying foxes (bats).
View a map of the Electricity System.[back to top
Power and Water provides water and sewerage services in the Territory’s five major centres. We provide water in 13 minor centres and sewerage services in five of those.
Most centres rely on groundwater, however Darwin, Pine Creek and Katherine have combined groundwater and surface water supplies. Excluding Katherine and Yulara, Territory water supplies require limited treatment and in most cases are only disinfected prior to use.
In Adelaide River, Alice Springs, Batchelor and Yulara, non-potable water supplies are reticulated to parts of the town for irrigation. In Darwin, effluent is treated and used to irrigate a sporting complex. In Alice Springs, it is treated and pumped to an isolated aquifer for later recovery for horticultural irrigation.
Water is pumped through some 2170km of mains across 18 centres. Sewer mains in our eight centres stretch 1080km. Sewage is mostly treated via waste stabilisation ponds.
The Alice Springs Water Reuse Project recycles water for use in horticulture and irrigation. Producing 600 million litres a year, it is the first project of its kind in Australia. Water from the wastewater stabilisation ponds undergoes treatment in a Dissolved Air Floatation plant before it is pumped 6.2km to underground aquifers at the Arid Zone Research Institute.
Power and Water’s not-for-profit subsidiary Indigenous Essential Services provides electricity, water and sewerage services to 72 Indigenous communities including 20 major remote towns.
These are geographically isolated, in both tropical and arid environments, requiring design service levels equal to similar-sized urban centres with resilience and adaptation for our changing climate.
Rapid development in these regions requires a commitment to working with communities toward sustainable electricity and water use to meet future needs and aspirations.
Power and Water contracts and trains Essential Services Operators through local councils, Indigenous enterprises and private contractors to run facilities day-to-day.
Infrastructure includes solar-powered water pumps, highly efficient diesel, low emission gas and renewable power stations. Many remote power stations are now controlled by fully-automated systems, requiring a high degree of expertise by the staff involved.
Ninety per cent of potable water is groundwater, from some 250 production bored through 174 water storage tanks and 650km of reticulation. A multi-barrier approach is taken to providing drink water consistent with Australian Drink Water Guidelines. Chlorination and ultraviolet systems are used as appropriate.
Fifty six towns and communities have full water-borne sewerage disposal systems with waste stabilisation ponds. The remainder have individual on-site systems maintained by the community.
Power and Water purchases natural gas from the offshore Blacktip field in Bonaparte Gulf, off the Northern Territory coast. If it processed onshore near Wadeye and hauled via the Bonaparte Gas Pipeline and Amadeus Gas Pipeline for large customers such as Territory Generation. It also supplies gas to industrial customers for reticulation, power generation, compressed natural gas and liquid natural gas production. Power and Water also has access to emergency gas from Darwin LNG and the soon to be constructed INPEX facility.