MainPower New Zealand Limited is an

electricity distribution Electric power distribution is the final stage in the delivery of electric power; it carries electricity from the transmission system to individual consumers. Distribution substations connect to the transmission system and lower the transmissi ...

company, based in

Rangiora Rangiora is the largest town and seat of the Waimakariri District, in Canterbury, New Zealand. It is north of Christchurch, and is part of the Christchurch metropolitan area. With an estimated population of Rangiora is the 30th largest urba ...

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 List of islands of New Zealand, smaller islands. It is the ...

, responsible for electricity distribution to nearly 42,000 customers in the

Canterbury Canterbury (, ) is a cathedral city and UNESCO World Heritage Site, situated in the heart of the City of Canterbury local government district of Kent, England. It lies on the River Stour. The Archbishop of Canterbury is the primate of ...

region north of the

Waimakariri River The Waimakariri River is one of the largest rivers in Canterbury, on the eastern coast of New Zealand's South Island. It flows for in a generally southeastward direction from the Southern Alps across the Canterbury Plains to the Pacific Ocean. ...

. MainPower was formed in 1993, after the Energy Companies Act 1992 required the North Canterbury Electric Power Board to reform into a commercial power company. More reforms in 1998 required electricity companies nationally to split their lines and retail businesses, with MainPower retaining its lines business and selling its retail business to Contact Energy. MainPower has initiated a number of local generation projects, including the Mount Cass Wind Farm (proposed) and Cleardale Hydro Power Station (operating).

Electricity network

MainPower has a total service area of , covering the Waimakariri, Hurunui and

Kaikōura Kaikōura () is a town on the east coast of the South Island of New Zealand. It is located on State Highway 1, 180 km north of Christchurch. The town has an estimated permanent resident population of (as of ). The town is the government ...

districts. The area includes the towns of

Kaiapoi Kaiapoi is a town in the Waimakariri District of the Canterbury region, in the South Island of New Zealand. The town is located approximately 17 kilometres north of central Christchurch, close to the mouth of the Waimakariri River. It is c ...

Oxford Oxford () is a city in England. It is the county town and only city of Oxfordshire. In 2020, its population was estimated at 151,584. It is north-west of London, south-east of Birmingham and north-east of Bristol. The city is home to the Un ...

, Woodend,

Pegasus Pegasus ( grc-gre, Πήγασος, Pḗgasos; la, Pegasus, Pegasos) is one of the best known creatures in Greek mythology. He is a winged divine stallion usually depicted as pure white in color. He was sired by Poseidon, in his role as hor ...

Amberley Amberley may refer to: Places Australia *Amberley, Queensland, near Ipswich, Australia *RAAF Base Amberley, a Royal Australian Air Force military airbase United Kingdom * Amberley, Gloucestershire, England * Amberley, Herefordshire, England ...

Waipara Waipara is a small town in north Canterbury, New Zealand, on the banks of the Waipara River. Its name translates to "Muddy Water", ''wai'' meaning water and ''para'' meaning mud. It is at the junction of state highways 1 and 7, 60 kilometre ...

Culverden Culverden is a small town in the northern Canterbury region of New Zealand's South Island. It lies at the centre of the Amuri Plain. Culverden has traditionally been surrounded by sheep farms. Dairy farms have now become more common as a resul ...

, Cheviot,

Hanmer Springs Hanmer Springs is a small town in the Canterbury region of the South Island of New Zealand. The Māori name for Hanmer Springs is Te Whakatakanga o te Ngārahu o te ahi a Tamatea, which means “where the ashes of Tamate’s (sic) fire lay� ...

and

. MainPower takes electricity from Transpower's national grid at five grid exit points (GXPs): Kaiapoi, Southbrook, Ashley, Waipara and Culverden. It operates 4,873 km of circuits at 66,000 and 33,000 volts for subtransmission, and 22,000 and 11,000 volts for distribution. As is standard in New Zealand, electricity is delivered to homes at 230/400 volts (phase-to-neutral/phase-to-phase). In 2011, MainPower purchased the Kaikōura GXP and Culverden to Kaikōura 66 kV transmission line from Transpower. In 2015, MainPower completed works to up-rate the network west of Rangiora towards Oxford to 66/22 kV (from 33/11 kV). Other projects in progress include upgrading the 33 kV subtransmission line between Cheviot and Kaikōura to 66 kV, and preparing for a new "Rangora East" GXP between Rangiora and Woodend to supply Woodend and Pegasus, offloading Kaiapoi GXP. In the year to 31 March 2021, the MainPower network had a SAIDI of 297.35 minutes, meaning the average customer experiences 4 hours 57 minutes hours without electricity every year.

References

External links

* * {{Waimakariri District Electric power distribution network operators in New Zealand Rangiora

Electricity network

See also

References

External links