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{{short description|New Zealand electricity generatorand gas distribution company}}
{{Use New Zealand English|date=April 2024}}
{{Use dmy dates|date=April 2022}}
{{Infobox company
| name = Powerco Limited
| logo =
| type =
| genre =
| fate =
| predecessor = Taranaki Energy Limited
| successor =
| foundation = 1999
| founder =
| defunct =
| defunct =
| location_country = [[New Plymouth]], New Zealand
| location =
| locations =
| area_served = 39,000 sq km<ref name="business" />
| key_people =
| industry = [[Energy industry|Energy]]
| products =
| services = [[Electricity distribution]] <br /> Natural gas distribution
| revenue =
| operating_income =
| net_income =
| aum =
| aum assets =
| assets equity =
| num_employees = 330520 full-time equivalent▼
| equity =
| parent =
▲| num_employees = 330 full-time equivalent
| parent divisions =
| divisions subsid =
| homepage = [http://www.powerco.co.nz/ www.powerco.co.nz]▼
| subsid =
| footnotes = ▼
▲| homepage = [http://www.powerco.co.nz/ www.powerco.co.nz]
▲| footnotes =
}}
 
'''Powerco''' is the largest dual-energy distribution company in [[New Zealand]] by length, and is one of only two dual-energy (electricity and gas) distributors in the country.
'''Powerco''' is the second-largest [[natural gas|gas]] and largest [[electricity]] distributor in [[New Zealand]]. It is one of only two companies to distribute both electricity and natural gas through their network (the other being [[Vector Limited]]).<ref name="business">{{cite web| url=http://www.powerco.co.nz/About-Us/Our-Business/| title=Our Business| publisher=Powerco| date=19 August 2011| accessdate=20 August 2011}}</ref> Its network delivers electricity and gas to households around the North Island from the national electricity transmission network [[Transpower New Zealand|Transpower]] and the natural gas transmission system owned and operated by [[Vector Limited]].
 
Its networks are located in the North Island of New Zealand.
Powerco arose from the energy reforms in New Zealand in the 1990s. It can trace its history back to a number of local power boards and gas companies that operated throughout the North Island.<ref>{{cite web| url=http://www.powerco.co.nz/About-Us/Our-People/| title=Our People| date=14 July 2015| publisher=Powerco}}</ref> The company is currently owned by Australian companies, including [[Queensland Investment Corporation]] and [[AMP Limited]].<ref>{{cite web| url=https://app.companiesoffice.govt.nz/companies/app/ui/pages/companies/2185529/shareholdings| title=Powerco NZ Holdings Limited| work=Companies Register| accessdate=14 August 2020}}</ref>▼
 
▲Powerco arose from the energy reforms in New Zealand in the 1990s. It can trace its history back to a number of local power boards and gas companies that operated throughout the North Island.<ref>{{cite web| url=http://www.powerco.co.nz/About-Us/Our-People/| title=Our People| date=14 July 2015| publisher=Powerco}}</ref> The company is currently owned by Australian companies, including [[Queensland Investment Corporation]] and [[AMP Limited]].<ref>{{cite web| url=https://app.companiesoffice.govt.nz/companies/app/ui/pages/companies/2185529/shareholdings| title=Powerco NZ Holdings Limited| work=Companies Register| accessdate=14 August 2020}}</ref>
 
==Business==
Powerco is a dual-energy distributor. Its role is to bring the gas and electricity delivered by the transmission networks [[Transpower New Zealand|Transpower]] (for electricity) and [[First Gas|Firstgas]] (for gas) from the gas fields and power stations where it's generated, through its distribution networks, to customers.
The New Zealand electricity reforms of the 1980s split the electricity industry broadly into four sections - generators, transmitters, distributors and retailers. Six main generator businesses ([[Contact Energy]], [[Genesis Energy Limited|Genesis Energy]], [[Mercury Energy]], [[Meridian Energy]], [[Trustpower]] and [[Nova Energy]]) generate electricity and supply it to New Zealand's national grid, operated by [[Transpower New Zealand|Transpower]]. Transpower transmits high-voltage electricity to grid exit points (or [[Electrical substation|substation]]s) around New Zealand for transmission to households and businesses. The local distribution network (mostly consisting of underground wires and/or overhead wires) that transmit electricity to end-users like households and businesses are owned and operated by local distribution companies, mostly regionally based.<ref>{{cite web| url=http://www.powerco.co.nz/About-Us/Our-Business/NZ-Electricity-Market/| title=Our Business: New Zealand's Electricity Market| date=14 July 2015| publisher=Powerco}}</ref>
 
Powerco owns and operates 28,935 km of electricity lines and cables, and 6,227 km of gas pipes. Over 900,000 customers are connected to its networks across 345,000 individual electricity connections and 112,000 individual gas connections.
Powerco is a distributor whose business is completely separate from generation, national transmission and retail (selling delivered electricity to end-users). It operates a 30,000 km local electricity distribution network supplying 320,000 households, industries and businesses from Transpower's national grid and a 6,000 km natural gas distribution network supplying 102,000 households, industries and businesses from Vector's transmission system.
 
Its electricity network currently supplies the following regionscovers:
* Coromandel to South Waikato
* [[Tauranga]] and the Western Bay of Plenty District
* Bay of Plenty: Tauranga and Mount Maunganui
* [[Thames-Coromandel]], Hauraki, Matamata-Piako and South Waikato Districts
* [[Taranaki]] Region
* Whanganui and Rangitīkei
* Wanganui and Rangitikei Districts
* Manawatū
* Palmerston North City and Manawatu District
* [[Wairarapa]]▼
* Southern Tararua District (south of and including [[Mangatainoka]])
▲* [[Wairarapa]]
 
Powerco's naturalIts gas distribution network covers:
* [[Taranaki]]
*[[ Hawke's Bay Region]]▼
* [[Manawatu District|Manawatu]]
* Manawatū
* [[Palmerston North]]
* [[Porirua and Hutt Valley]]▼
* [[Horowhenua District]]
* Wellington
▲*[[Hawke's Bay Region]]
▲* [[Hutt Valley]]
* [[Porirua]]
* [[Wellington|Wellington City]]<ref>{{cite web| url=http://www.powerco.co.nz/About-Us/Our-Business/Our-Networks/| title=Our Business: Our Networks| date=14 July 2015| publisher=Powerco}}</ref>
 
== Key dates ==
* April 1993 - New Plymouth Energy (the electricity division of the [[New Plymouth District Council]]) merges with Taranaki Electricity (former Taranaki Electric Power Board) to become Taranaki Energy Limited.<ref name="archive20010511">{{cite web |url=http://www.powerco.co.nz/about/story.htm |title=Powerco Limited |website=www.powerco.co.nz |access-date=12 January 2022 |archive-url=https://web.archive.org/web/20010511053541/http://www.powerco.co.nz/about/story.htm |archive-date=11 May 2001 |url-status=dead}}</ref>
* 1994 - Taranaki Energy acquired the Hawera Gas Company.<ref name="archive20010511"/>
* October 1995 - Taranaki Energy Limited merges with Wanganui-based Powerco (the former Wanganui Electric Power Board) to become PowerCoPowerco Limited.<ref name="archive20010511"/>
* September 1997 - Powerco acquires Hawera based Egmont Electricity.<ref name="archive20010511"/>
* April 1998 - Government pass Electricity Industry Reform Act. PowerCo decided to become a "network business" (or lines company), and the following changes are made:
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* August 2000 - Powerco merged with CentralPower (itself formed by the merger of CentralPower (for former Manawatu-Oroua Power Board) and ElectroPower, the former electricity division of Palmerston North City Council).<ref name="archive20010511"/>
* June 2001 - Powerco purchases the Hutt Valley and Porirua gas networks from [[AGL Energy|AGL]].<ref>{{cite web |url=http://www.powerco.co.nz/0,2480,FF.htm |title=Powerco Purchases AGL Hutt Valley and Porirua Basin Gas Network |website=www.powerco.co.nz |access-date=12 January 2022 |archive-url=https://web.archive.org/web/20030227164137/http://www.powerco.co.nz/0,2480,FF.htm |archive-date=27 February 2003 |url-status=dead}}</ref>
* February 2002 - Powerco purchases the Electricityelectricity Assetsassets of United Networks Limited in [[Tauranga]], Eastern and Southern Waikato, Thames and Coromandel, plus gas networks in Wellington, Horowhenua, ManawatuManawatū and Hawke's Bay.<ref>{{cite web |url=http://www.powerco.co.nz/0,3070,FF.htm |title=Powerco completes integration of UnitedNetworks assets on time and under forecast |website=www.powerco.co.nz |access-date=12 January 2022 |archive-url=https://web.archive.org/web/20030413170629/http://www.powerco.co.nz/0,3070,FF.htm |archive-date=13 April 2003 |url-status=dead}}</ref>
* 2004 - Powerco purchased Siemens Energy Services' Tauranga based contracting division
* November 2005 - Powerco sold its New Zealand field services contracting business to Tenix Alliance
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{| class="wikitable"
|-
|+ Powerco electricity network statistics as of 31 March 20182022<ref name="Disclosure">{{cite web |urldate=2022 |title=Electricity disclosure 1 April 2021 - 31 March 2022 |url=https://www.powerco.co.nz/-/media/1963project/powerco/powerco-documents/who-we-are---pricing-and-disclosures/disclosures/electricity-disclosures/5-electricity-information-disclosure-2018financial-and-technical/electricity-disclosure-1-april-2021-vf.pdf |title= EDB Information Disclosure - Powerco Limited - year ending 31 March 2018 |date= 31 August 2018-march-2022.pdf |accessdate= 7 October 2018}}</ref>
|-
! rowspan=2| Parameter
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! Total network !! Eastern network <br /><small>(Tauranga, Coromandel and South Waikato)</small> !! Western network <br /><small>(Taranaki, Whanganui, Manawatu and Wairarapa)</small>
|-
| Total circuit length || 2728,833935 km || 10,568993 km || 17,547942 km
|-
| 66 kV50kV and 66kV || 169 km || 169 km || –
|-
| 33 kV || 1,509612 km || 475532 km || 1,034080 km
|-
| 22 kV || 122 km || – || 122 km
|-
| 6.6/11 kV6kV to 11kV || 16,657781 km || 56,961051 km || 10,695730 km
|-
| [[Single wire earth return]] (SWER) || 7992 km || 6169 km || 1723 km
|-
| Low voltage (230/400&nbsp;V<1kV) || 910,579159&nbsp;km || 34,902172&nbsp;km || 5,678986&nbsp;km
|-
| Street lighting || 23,931067 km || 1,576689 km || 1,355378 km
|-
| Customer connections || 337345,135000 || 158,030 || 179,071
|-
| System maximum demand || 897 986 MW || 466 526 MW || 433 464 MW
|-
| System electricity delivered || 54,099 994 GWh || 2,701 734 GWh || 2,398 260 GWh
|}
 
==Natural gasGas network statistics ==
{| class="wikitable"
|-
|+ Powerco natural gas network statistics as of 30 September 20172022<ref name="Disclosure_Gas">{{cite web |urltitle=Gas httpdisclosure 1 October 2021 - 30 September 2022 |url=https://www.powerco.co.nz/uploaded_files-/Publicationsmedia/project/powerco/powerco-documents/who-we-are---pricing-and-Disclosuresdisclosures/Newdisclosures/Disclosuresgas-disclosures/Gas2-gas-information-disclosure-2016.pdf |title= GDB Information Disclosure financial- Powerco Limited and-technical/fy22-gas-disclosure-1-october-2021- year ending 30 September 2017-september-2022.pdf |accessdate= 7 October 2018}}</ref>
|-
! rowspan=2| Parameter
! colspan=4"2" | Value
|-
! Total network !! Hawke's Bay, Taranaki & Manawatu !! Wellington metro
|-
| Total pipeline length
| 56,941227 km || 3,154 km || 2,753 km
|-
| Intermediate pressure (700–2000 kPa) || 277274 km || 109 km || 168 km
|-
| Medium pressure (7–700 kPa) || 5,615940 km || 3,035 km || 2,580 km
|-
| Low pressure (<7&nbsp;kPa) || 4914&nbsp;km || 10&nbsp;km || 38&nbsp;km
|-
| Customer connections || 106113,776478 || 44,734 || 62,042
|-
| System maximum demand || 45.00 TJ/day23,554 ||GJ per 21.86 TJ/day || 23.14 TJ/day
|-
| System gas delivered || 8,786 TJ || 4,993625 TJ || 3,793 TJ
|}
 
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==External links==
*{{official website|http://www.powerco.co.nz/}}
 
{{Electricity companies in New Zealand}}
Retrieved from "https://en.wikipedia.org/wiki/Powerco"