Meridian Energy
A New Zealand electricity generator and retailer focused primarily on renewable hydroelectric and wind power.
Last updated August 21, 2026
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Overview
Meridian Energy Limited is a New Zealand electricity-generation and retailing company whose business is centered on renewable power. It operates a large hydroelectric portfolio in the South Island, including the Waitaki River system and the Manapouri scheme, together with wind farms in both the South and North Islands. The company also supplies electricity to retail customers through its Meridian and Powershop businesses and has developed capabilities in energy software and related technical services. Meridian emerged from the restructuring of the Electricity Corporation of New Zealand during the reforms of the late 1990s. In 1999, the portion of the former state electricity corporation assigned to Meridian was established as a separate state-owned enterprise. Its initial generation base included the Waitaki River hydro stations and Manapouri, giving it a particularly strong position in South Island electricity generation. The company also expanded its retail presence by acquiring customer portfolios from local electricity companies and from Natural Gas Corporation's electricity business during the early 2000s. The company briefly expanded into Australia. It bought a group of small hydroelectric stations in 2001 and acquired Southern Hydro in 2003, substantially increasing its Australian generation capacity. Meridian sold Southern Hydro in 2005 to Australian Gas Light Company, exiting most of its Australian generation operations. The sale allowed the company to concentrate on its New Zealand generation and retail businesses while crystallizing value from its Australian renewable assets. Hydroelectricity remains Meridian's core source of generation, but the company has progressively added wind power. Te Āpiti was its first wind farm, followed by projects including White Hill and West Wind. Meridian's renewable portfolio has made it one of the most prominent low-carbon electricity companies in New Zealand, although its dependence on rainfall and lake levels exposes it to hydro shortages and volatile wholesale-market conditions. The company has also promoted electric vehicles, carbon accounting, conservation partnerships and community programmes as part of its broader sustainability positioning. Meridian was partially privatized in 2013. Forty-nine percent of its shares were offered to investors, while the New Zealand Government retained a majority holding. The company remained listed on the New Zealand Exchange under the ticker MEL. As a generator-retailer, Meridian combines wholesale generation with customer supply, an operating model that can provide a degree of protection against market fluctuations but also places the company within continuing debates about competition, retail pricing and the environmental claims made by electricity retailers. In the 2020s, Meridian continued developing renewable generation and operating its established hydro and wind assets. In May 2025 it agreed to acquire the Flick electricity retail business and associated customers from Z Energy for NZ$70 million, subject to the transaction's applicable conditions. Meridian's present identity is therefore that of a publicly listed, government-majority-owned renewable generator and electricity retailer with a strong New Zealand market focus.
History
Meridian Energy was created during the late-1990s restructuring of New Zealand's electricity sector. The Electricity Corporation of New Zealand was divided into separate generation companies, and Meridian received the Waitaki River hydroelectric assets and the Manapouri scheme. It began as a state-owned enterprise governed on behalf of the Crown by ministerial shareholders. During its first years, Meridian expanded both generation and retail operations. It acquired five small Australian hydro stations in 2001 and bought the South Island customer base of Natural Gas Corporation's electricity business later that year. The customer acquisition strengthened Meridian's retail presence during a period of unusually high wholesale prices caused by low hydro inflows. In 2003, the acquisition of Southern Hydro increased its Australian generation capacity to a much larger scale. Meridian abandoned Project Aqua in March 2004. The proposed 524 MW Lower Waitaki development faced uncertainty over water rights, rising costs and the consenting process under New Zealand's resource-management legislation. Meridian subsequently continued to invest in wind generation. Te Āpiti, its first wind farm, was officially opened in 2004. The company later developed White Hill and West Wind, with West Wind near Mākara in the Wellington region becoming one of its most visible wind projects after consent appeals were resolved. In 2005 Meridian sold Southern Hydro to Australian Gas Light Company for A$1.42 billion, ending its major Australian generation presence. It continued building its New Zealand renewable portfolio, including the opening of White Hill Wind Farm in 2007 and the staged commissioning of West Wind from 2009. In 2011, Tekapo A and Tekapo B were transferred to Genesis Energy as part of wider government reforms to New Zealand's electricity industry. The company was partially privatized in 2013, when 49 percent of its shares were sold to public investors and the government retained a 51.02 percent stake. Meridian remained listed on the NZX and continued operating as an integrated generator and retailer. Its generation fleet has generally been described as consisting of seven South Island hydro stations and multiple New Zealand wind farms, while its retail and technology interests have included Powershop and Flux Federation. Meridian has promoted a sustainability-focused corporate identity. It received carbon-neutral certification for its generation and retailing activities and has supported conservation initiatives such as Project River Recovery, the Waiau River recovery programme and the Department of Conservation's Kākāpō Recovery Programme. It also began converting its business fleet to electric vehicles in 2015 and joined EV100 in 2019. These activities have coexisted with scrutiny over renewable-energy advertising and the effects of hydro-management decisions on wholesale prices. Meridian's business remains concentrated in New Zealand electricity generation and retailing, with hydroelectricity as its foundation and wind power as a major complementary technology. Its May 2025 agreement to acquire the Flick retail business from Z Energy illustrates its continuing interest in expanding the customer-supply side of the electricity market.
- 2025
Agreement to acquire Flick
[1]Meridian agrees to acquire Z Energy's Flick electricity retail business and customers for NZ$70 million.
- 2019
Meridian joins EV100
[1]The company commits to a fully electric light passenger-vehicle business fleet by 2030.
- 2013
Partial privatization
[1]A 49 percent shareholding is offered to investors, while the New Zealand Government retains majority ownership.
- 2011
Tekapo stations transfer to Genesis Energy
[1]Tekapo A and Tekapo B are sold to Genesis Energy under an electricity-sector reform package.
- 2007
White Hill Wind Farm opens
[1]White Hill becomes an operating component of Meridian's New Zealand wind portfolio.
- 2005
Southern Hydro is sold
[1]Meridian sells its Australian Southern Hydro business to Australian Gas Light Company.
- 2004
Project Aqua is cancelled
[1]Meridian abandons its proposed Lower Waitaki hydro scheme after facing water-rights, cost and consenting uncertainties.
- 2004
Te Āpiti Wind Farm opens
[1]Te Āpiti becomes Meridian's first wind farm.
- 2003
Southern Hydro acquisition
[1]The acquisition of Southern Hydro expands Meridian's Australian generation platform by about 540 MW.
- 2001
Australian mini-hydro acquisition
[1]Meridian purchases five small Australian hydroelectric stations with combined capacity reported at 62 MW.
Products and positioning
Renewable-energy generator and retailer with a strong New Zealand identity, emphasizing hydroelectric generation, wind power and lower-carbon energy services.
Electricity generation · 1999
Hydroelectric generation
Hydroelectricity is Meridian's foundational business. Its South Island portfolio includes seven hydroelectric stations associated with the Waitaki River system and Manapouri. The assets provide large-scale renewable generation but are exposed to rainfall, lake storage and inflow conditions. Hydro output supports both wholesale-market sales and Meridian's retail customer base.
Electricity generation · 2004
Wind generation
Meridian operates wind farms in New Zealand, including Te Āpiti, White Hill and West Wind, as well as additional North Island projects. Wind power broadens the company's renewable portfolio beyond hydroelectricity and can complement hydro resources when wind conditions are favorable. The projects also form a visible part of Meridian's low-carbon brand positioning.
Retail electricity · 2001
Meridian electricity retail
The Meridian retail business supplies electricity to New Zealand households and organizations. It was expanded through the acquisition of customer portfolios from local electricity companies and Natural Gas Corporation's electricity business. Retail operations are integrated with Meridian's generation platform and are marketed around renewable electricity and sustainability, although some environmental claims have attracted regulatory and advertising scrutiny.
Retail electricity
Powershop
Powershop is an electricity retail brand and subsidiary associated with Meridian. It provides retail electricity services through a customer-facing model distinct from Meridian's principal retail brand. Its role gives Meridian an additional route to serve electricity customers and participate in retail innovation.
Energy software
Flux Federation
Flux Federation is an energy-software platform associated with Meridian. It provides technology intended to support electricity retailers and energy-market operations, extending Meridian's activities beyond physical generation and customer supply into digital infrastructure and software services.
Controversies
2019
Misleading renewable-electricity implication
The Advertising Standards Authority found that Meridian had misled consumers by implying that the electricity it retailed was 100 percent renewable, following a complaint from rival retailer Electric Kiwi.
2019
Preliminary ruling on hydro water spilling and prices
A preliminary Electricity Authority ruling stated that Meridian had unnecessarily spilled water from South Island dams in December, water that could otherwise have been used for generation, potentially contributing to higher power prices.
Marketing campaigns
- 2019EV100 fleet transition
New Zealand
Meridian joined EV100 after beginning to convert its business fleet to electric vehicles, committing to an all-electric light passenger-vehicle fleet by 2030.
Outcome. Recognized with a Deloitte Energy Award for a low-carbon initiative
- 2016Kākāpō Recovery Programme partnership
New Zealand
Meridian became a national partner of the Department of Conservation's Kākāpō Recovery Programme, supporting work on genetics, nutrition, disease management and habitat expansion for the endangered native parrot.
Outcome. Ongoing conservation partnership
- 2013KidsCan partnership
New Zealand
Meridian became a principal partner of KidsCan, supporting food, clothing and weather protection for children in need. The company renewed its support for a further three years in 2019.
Outcome. Extended community-support commitment
- Power Up community fund
New Zealand
The Power Up fund supports conservation, community and educational projects in communities located near Meridian's generation assets.
Outcome. Ongoing community programme
Brand decisions
2025
Agree to acquire FlickM&ABackground
Meridian sought to expand its retail electricity customer base and acquire an established retail brand.
Action taken
Meridian agreed to buy Z Energy's Flick electricity business and associated electricity customers.
Aftermath
The agreement would broaden Meridian's retail portfolio if completed under the transaction's applicable conditions.
Agreed purchase price. NZ$70 million (May 2025)
2013
Partial privatization and public listingStrategyBackground
The government moved to sell a minority stake in selected state-owned electricity companies.
Action taken
Forty-nine percent of Meridian's shares were offered to investors, with the government retaining a majority holding.
Aftermath
Meridian became a publicly listed company while remaining majority government-owned.
2011
Transfer Tekapo A and Tekapo BM&ABackground
The transfer formed part of a New Zealand Government package intended to reform the electricity sector.
Action taken
Meridian sold the Tekapo A and Tekapo B hydroelectric stations to Genesis Energy.
Aftermath
The transaction changed the ownership structure of the Waitaki-area hydro assets while Meridian retained a substantial generation portfolio.
2005
Sell Southern HydroM&ABackground
Meridian had expanded its Australian generation activities through the Southern Hydro acquisition but chose to exit its major Australian generation position.
Action taken
The company sold Southern Hydro to Australian Gas Light Company.
Aftermath
Meridian concentrated more heavily on New Zealand generation and retail operations after the sale.
Sale consideration. A$1.42 billion (2005)
2004
Cancel Project AquaStrategyBackground
The proposed 524 MW Lower Waitaki hydroelectric development faced uncertainty concerning water rights, escalating costs and resource-consent requirements.
Action taken
Meridian cancelled the scheme and announced an independent audit of the abandoned project.
Aftermath
The decision ended one of New Zealand's largest proposed new hydro developments and redirected attention toward existing assets and wind generation.
Reported cancellation cost. NZ$38.7 million (2004)
Recent events
Meridian agrees to sell its Australian energy business[3]
Reported:
Meridian Energy said it agreed to sell its Australian energy business for A$729 million to a consortium of Royal Dutch Shell and Infrastructure Capital Group. The deal was subject to conditions, including Australian Government foreign investment approval, and was expected to be completed by the first quarter of the following year.
Sources4 sources
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