New Zealand Renewable Energy Market Size, Share and Outlook - Growth Analysis Report and Forecast Trends (2026-2035)

Market Overview

The New Zealand renewable energy market is shifting from a hydro-dominated system towards a broader portfolio. Solar farms, wind repowering, deep geothermal drilling and grid-scale batteries are being financed at pace, helped by faster consenting and a government push to lift competition and security of supply.

Three forces are shaping the market: a large pipeline of generation, with Transpower reporting 22 connection projects adding about 3,000 MW to end-2028; electrification of dairy processing, steel and transport; and reform of market rules, including time-of-use plans and fairer rates for exported rooftop solar.

In June 2026 the Environment Court gave the Waitaki Power Scheme a further 35 years of consents, and in April 2026 Contact Energy won fast-track approval for a Southland wind farm of up to 380 MW. In August 2026 Mercury approved the Puke Kapo Hau wind farm.

Key Market Trends and Insights

• Record renewable share: MBIE reported on 10 September 2026 that renewables supplied 92% of electricity in the April to June quarter, the third straight quarter above 90%.
• Solar overtakes coal: Solar output rose 56.2% to a record 242 GWh in the same quarter, and over twelve months solar generated more electricity than coal for the first time.
• Hydro secured: Meridian's Environment Court consents of June 2026 keep 1,553 MW of Waitaki capacity operating for 35 years, close to 30% of national installed hydro capacity.
• Grid pipeline: Transpower said in August 2026 that 18 projects adding 669 MW connected during the year, with 22 more adding about 3,000 MW in delivery to end-2028.

New Zealand Renewable Energy Market Size and Forecast

The market is moving from reliance on hydro lakes and gas back-up towards a mix of geothermal baseload, wind, large solar farms and batteries that smooth peaks. Hydropower leads in value because of its scale, while solar grows fastest from a small base. Industrial users and the farm and transport sector are expected to draw the most new volume as plants electrify. Hybrid solar and storage projects advance quickest, and repowering of ageing wind farms adds output without new sites. Waikato remains the largest region, and Auckland grows quickest on solar and battery builds. Faster consenting, new hedge market rules and retailer investment in generation point to a durable shift in capacity rather than a short-lived building cycle, even as dry years and connection queues test delivery.

Key Takeaways: New Zealand Renewable Energy Market

Retailer-Led Build Programme Lifts Revenue

Revenue is on course to expand by about 79% across the decade, from USD 3.40 billion in 2025 to USD 6.09 billion in 2035 at a 6.0% CAGR. Mercury, Contact, Genesis and Meridian each approved or financed new plants during 2026, and an equity raise of NZ$575 million by Contact in February 2026 shows investors will fund it.

Solar and Hybrid Storage Lead Growth

Hydropower holds the largest share, but Solar PV grows at an estimated 13.5% CAGR and Hybrid Solar and Storage Projects at an estimated 11.6% CAGR through 2035. Genesis took final investment decisions on two solar farms in 2026, and Contact's first 100 MW Glenbrook battery came online in March 2026.

Market Reform and Consenting Reshape Delivery

Government and regulator measures are cutting the time and risk of building generation while widening access to the power it produces. Developers now plan around approvals measured in months and rules that favour flexible supply.

• Contact's Southland wind farm cleared the fast-track process in April 2026
• The Electricity Authority announced time-of-use and solar export reforms in May 2026
• Hedge non-discrimination obligations were reported in its August 2026 quarterly report

New Zealand Renewable Energy Market Report Summary

Key Insight

Renewables supply most electricity, and growth now comes from solar, storage, wind repowering and geothermal additions. Waikato leads on scale, while Auckland grows fastest on solar and batteries.

Key Trends in the New Zealand Renewable Energy Market

The New Zealand renewable energy market is being reshaped by record renewable shares, rapid solar growth, faster approvals and market rule changes aimed at flexibility and competition.

September 2026 - MBIE Reports Record Solar Output and 92% Renewable Share

• MBIE released second quarter data on 10 September 2026 showing renewables supplied 92% of electricity, the third straight quarter above 90%.
• Solar output rose 56.2% to 242 GWh and geothermal reached a record 2,621 GWh, while coal generation fell 74.3%.
• Falling thermal output and wholesale prices that dropped 66% show how fast renewables are displacing gas and coal.

July 2026 - Tauhei Becomes New Zealand's Largest Operating Solar Plant

• Tauhei in Waikato was energised in July 2026 with a capacity of 202 MWp, according to trade press coverage of the ministry data.
• Its output is contracted to Meridian Energy for the first ten years, giving the plant a stable revenue base.
• Meridian and Nova Energy also began installing modules at the 400 MW Te Rahui site near Taupō in May 2026.

May 2026 - Electricity Authority Announces Time-of-Use and Solar Export Reforms

• The Authority announced on 27 May 2026 that large retailers must offer time-of-use plans by mid-2026, with lower off-peak rates.
• Retailers must also pay fairer rates to households with rooftop solar and batteries that export power at peak demand.
• Energy Minister Simon Watts and Associate Minister Shane Jones welcomed the changes, while Consumer NZ said deeper reform may be needed.

April 2026 - Southland Wind Farm Wins Fast-Track Approval for Up to 380 MW

• Minister Chris Bishop announced on 2 April 2026 that Contact Energy's wind farm, 30 km south-east of Gore, was approved.
• The project has 55 turbines of up to about 7 MW each and could power up to 150,000 households.
• An expert panel took about five months, after an earlier version was declined consent over landscape and visual effects.

Key Insight

Record renewable shares, rapid solar growth, faster consenting and retail reforms are the main structural forces, while grid connection delays and dry years remain the main risks to delivery.

Recent Market Developments in the New Zealand Renewable Energy Market

Recent developments, presented from the most recent, show new wind approvals, hydro consent certainty, battery commissioning and geothermal capacity entering service.

August 2026 - Mercury Approves NZ$506 Million Puke Kapo Hau Wind Farm

• Mercury announced on 18 August 2026 that its board approved the Puke Kapo Hau (Mahinerangi Stage 2) wind farm for NZ$506 million.
• Once complete, the Mahinerangi wind farm will total 228 MW and produce 646 GWh a year.
• Mercury also began generating at Kaiwaikawe in July 2026 and finished construction at Kaiwera Downs 2 in June 2026.

June 2026 - Waitaki Power Scheme Gains 35 Years of Consents

• Meridian announced on 16 June 2026 that the Environment Court had approved the Waitaki Power Scheme for another 35 years.
• The six stations hold 1,553 MW of installed capacity, almost 30% of New Zealand's installed hydro capacity.
• New conditions include a major expansion of indigenous biodiversity management in the catchment, delivered with the Department of Conservation.

March 2026 - Contact Brings First 100 MW Glenbrook Battery Online

• Contact Energy said the first 100 MW Glenbrook battery came online in March 2026, and construction began on a second 200 MW unit.
• The second battery is due in early 2028 and will take Contact's battery capacity to 300 MW.
• Contact's 150 MW Glorit solar farm, with a consented battery, reached financial close with Lightsource bp in June 2026.

January 2026 - Mercury's New Ngā Tamariki Geothermal Unit Starts Generating

• Mercury reported that the new NZ$220 million unit at Ngā Tamariki came online in January 2026.
• It adds about 390 GWh a year of geothermal output, reinforcing baseload supply that complements wind and solar.
• Mercury also signed a 140 MW power purchase option with Datagrid in March 2026, linking new generation to data centre demand.

Key Insight

Wind approvals, hydro consent certainty, grid-scale batteries and new geothermal capacity show generators committing capital to firm and flexible supply through the forecast period.

New Zealand Renewable Energy Industry Segmentation

The Expert Market Research’s report on the New Zealand Renewable Energy Market offers a detailed analysis of the market based on the following segments.

Market Breakup by Technology

• Hydropower
• Geothermal
• Wind Power
• Solar PV
• Bioenergy and Others
• Others

Hydropower leads on value, in our estimate, with hydro output of 6,283 GWh in the April to June 2026 quarter and Meridian's Waitaki consents secured in June 2026. Geothermal is a firm second after a record 2,621 GWh that quarter and Mercury's new Ngā Tamariki unit in January 2026. Wind Power grows steadily as Mercury approved Puke Kapo Hau in August 2026. Solar PV grows fastest at an estimated 13.5% CAGR through 2035, as Tauhei was energised in July 2026. Bioenergy and Others cover wood waste, biogas and landfill gas plants.

Market Breakup by End Use

• Residential
• Commercial
• Industrial
• Agriculture and Transport
• Others

Industrial leads in value, in our estimate, with Contact signing an 11-year, 50 MW supply agreement with NZ Steel in August 2025. Residential demand is supported by Genesis, whose EV plan customers rose 43% to about 17,000 in 2026, and by rooftop solar reforms announced in May 2026. Commercial demand includes data centres, with Mercury's 140 MW Datagrid option of March 2026. Agriculture and Transport grows fastest at an estimated 8.4% CAGR through 2035, with Mercury's Fonterra hot water programme reaching 50,000 cylinders.

Market Breakup by Project Type

• Utility-Scale Grid Projects
• Distributed and Rooftop Systems
• Hybrid Solar and Storage Projects
• Repowering and Upgrades
• Others

Utility-Scale Grid Projects lead, in our estimate, led by Genesis, which acquired the 271 MWp Rangiriri solar farm and gained fast-track approval for the 220 MWp Foxton farm in 2026. Distributed and Rooftop Systems grow with Lodestone's July 2026 financing of a 31.5 MWdc Central Hawke's Bay farm. Hybrid Solar and Storage Projects grow fastest at an estimated 11.6% CAGR through 2035, as Glorit combines 150 MW of solar with a 100 MW battery. Repowering and Upgrades include Meridian's Te Rere Hau decision targeted for 2026.

Market Breakup by Region

• Auckland
• Wellington
• Canterbury
• Waikato
• Others

Waikato dominates, in our estimate, through its hydro chain, geothermal fields near Taupō and the Tauhei solar plant, and grows at an estimated 5.3% CAGR through 2035 from a mature base. Auckland is the fastest-growing region at an estimated 7.4%, with the Glenbrook batteries and Glorit solar farm. Canterbury grows at 6.5%, supported by Waitaki consents and Christchurch Airport's Kōwhai Park solar plant. Wellington grows at 5.6%, with Meridian's Mt Munro wind decision in Wairarapa due in 2026, and Others, covering Southland and Otago wind and hydro, at 6.0%.

Competitive Landscape in the New Zealand Renewable Energy Market

Competition combines four large generator-retailers with solar developers, geothermal owners and international investors. Entry barriers include consenting, grid connection through Transpower, hedge market access, land and landowner agreements, and the capital needed for multi-year builds.

Meridian Energy

Meridian Energy, headquartered in Wellington, is New Zealand's largest renewable generator, with hydro stations on the Waitaki and Waiau schemes plus wind farms and solar projects. Its half-year result of 25 February 2026 showed record wind generation, an operating Ruakākā battery and Ruakākā solar due to deliver first power in November 2026. In June 2026 the Environment Court approved the Waitaki scheme for 35 more years.

Contact Energy

Contact Energy, headquartered in Wellington, generates from geothermal, hydro, wind and flexible thermal plants and serves more than 690,000 retail connections. It completed the Manawa Energy acquisition in July 2025, raised NZ$575 million of equity in February 2026 and won Southland Wind Farm consent in April 2026. Its August 2026 result reported 98% renewable output and Te Mihi Stage 2 geothermal due in the third quarter of 2027.

Mercury NZ

Mercury NZ, headquartered in Auckland, owns hydro stations on the Waikato River, geothermal plants and a growing wind portfolio. Its result of 18 August 2026 reported an operating earnings rise of 36% to NZ$1,068 million and NZ$710 million reinvested in renewable assets. Ngā Tamariki came online in January 2026, Kaiwaikawe generated in July 2026 and the NZ$506 million Puke Kapo Hau wind farm was approved in August 2026.

Genesis Energy

Genesis Energy, headquartered in Auckland, runs the Huntly power station, the Tongariro hydro scheme and a fast-growing solar and battery pipeline. Its result of 26 August 2026 reported solar construction decisions on Tihori and Leeston, the Rangiriri acquisition and fast-track approval for Foxton. The first 100 MW Huntly battery is due to be fully operational by September 2026, and a Yinson Renewables partnership covers more than 1 GW of onshore wind.

Other players operating in the New Zealand renewable energy market include Nova Energy, Lightsource bp, Lodestone Energy, Yinson Renewables, and Top Energy, alongside community and iwi-owned geothermal operators, regional lines companies, rooftop solar installers and commercial energy service providers supplying clean power across the North and South Islands.

Key Insight

Competition rests on consenting speed, grid access, hedge market position and project finance strength rather than price alone, while retailer ownership of generation keeps the market concentrated.