Genesis Energy Limited
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Genesis Energy Limited

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Genesis Energy Limited

Genesis Energy Limited, formerly Genesis Power Limited is a New Zealand publicly listed electricity generation and electricity, natural gas and LPG retailing company. It was formed as part of the 1998–99 reform of the New Zealand electricity sector, taking its generation capacity from the breakup of the Electricity Corporation of New Zealand (ECNZ) and taking retail customers from three local power boards in the Lower North Island. The New Zealand Government owns a 51% share of the company.

Genesis Energy is one of the largest electricity and natural gas retailers in New Zealand with 23% and 33% market share respectively in the 2024-2025 financial year. In 2025, Genesis produced 15% of New Zealand's electricity, and is the third largest electricity generating company in New Zealand in terms of MW capacity, GWh generation and revenue (see comparison table at New Zealand electricity market).

Genesis Energy began business on 1 April 1999, after the reform of the New Zealand electricity market and the breakup of the Electricity Corporation of New Zealand (ECNZ). It took over the Huntly Power Station, Tongariro Power Scheme and Waikaremoana Hydro Scheme from ECNZ, and the Hau Nui Wind Farm and the Kourarau Hydro Scheme from Wairarapa Electricity. It also inherited the retail arms of Powerco, Central Power and Wairarapa Electricity, while Powerco and Central Power concentrated on electricity distribution (the distribution arm of Wairarapa Electricity merged with Powerco on the same day).

During 2000 to 2002 Genesis Energy purchased several electricity and gas retailing entities, following changes to laws governing the electricity industry. These included electricity retail businesses of Todd Energy, and electricity and gas customers from NGC (now Vector Limited) and Energy Online.

In September 2013, the company announced a change of name from Genesis Power Limited to Genesis Energy Limited.

On 17 April 2014, the National Government sold a 49% stake in Genesis Energy through an initial public offering at NZ$1.55 per share.

In February 2018, Genesis Energy announced a pathway to a coal-free electricity future for New Zealand by 2030.

In 2024, the company downgraded the reserves at Kupe by 81 petajoules of gas resulting in a $64 million writedown. This, along with other factors including a power station outage, resulted in a steep decline in profits although revenue was up.

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