New Zealand
A highly renewable power system faces its next challenge: keeping electricity affordable, reliable and flexible.
New Zealand is one of the world's most renewable electricity markets, but its energy transition is entering a new phase focused on reliability, electrification, storage and investment.
Big Picture
New Zealand starts its energy transition from a strong position: renewables already dominate electricity generation.
Hydro provides the backbone, while geothermal provides firm renewable generation and wind and solar are expanding. But the country remains heavily dependent on fossil fuels across the broader economy — particularly transport and industrial energy.
The central challenge is therefore electrifying more of the economy without compromising energy security.
Dry years can reduce hydro availability, while declining domestic gas supply has increased pressure on thermal generation. The government is consequently pursuing a broader energy-security strategy alongside renewable investment.
Policy & Targets
Renewable Energy
The government has set an aspirational target of 100% renewable electricity by 2030.
Renewable Energy Across the Economy
New Zealand's energy strategy has a target for renewables to reach 50% of total energy consumption by 2035, up from around 28%.
Climate Target
New Zealand's domestic target is:
Net zero emissions of all greenhouse gases except biogenic methane by 2050.
The biogenic methane target is currently a 14–24% reduction below 2017 levels by 2050, including a 10% reduction by 2030.
International 2035 Target
Under its second Nationally Determined Contribution, New Zealand has committed to reducing emissions by 51–55% below 2005 levels by 2035.
Power Market
New Zealand's electricity market is dominated by renewable generation, particularly:
Hydro → Geothermal → Wind → Solar
Hydro remains the backbone of the system, with more than 5 GW of capacity and historically providing more than half of electricity generation.
But hydro's dependence on rainfall creates a "dry-year" risk. In 2024, low hydro inflows contributed to greater reliance on coal and gas. Coal generation increased to 2,243 GWh, around 5% of total generation.
This creates an interesting market dynamic:
More renewables + more electrification + less domestic gas = greater need for flexibility and firming capacity.
The government announced in February 2026 that it intends to establish an LNG import facility as an energy-security backup, particularly to manage dry-year risk and declining domestic gas supply.
Grid & Storage
This is one of the most important areas to watch.
New Zealand is increasingly adding:
Utility-scale batteries
Distributed batteries
Solar + storage
Wind + storage
Demand response
Smarter distribution networks
Grid flexibility
As of May 2026, New Zealand had three grid-scale batteries:
Rotohiko — 35 MW / 35 MWh
Ruakākā — 100 MW / 200 MWh
Glenbrook-Ohurua — 100 MW / 200 MWh
The Electricity Authority is also updating market and regulatory arrangements to better integrate BESS and hybrid renewable projects.
Distributed generation is growing too. In April 2026, the Electricity Authority said approximately 75,000 households had solar and more than 14,700 had batteries.
Industry & New Energy
New Zealand's opportunity extends beyond electricity.
Electrification
Transport and industrial heat are major opportunities for replacing fossil fuels with electricity.
Transport remains particularly fossil-fuel dependent — around 99% of transport energy currently comes from fossil fuels.
Geothermal
Geothermal remains strategically important because it provides firm renewable generation rather than weather-dependent output.
Two significant projects added new geothermal capacity in late 2025 and early 2026:
TOPP2 — 49 MW
Ngā Tamariki expansion — 46 MW
Offshore Wind
New Zealand is developing a regulatory framework for offshore renewable energy, with offshore wind viewed as a potentially significant future source of large-scale renewable electricity.
Hydrogen
Green hydrogen remains a potential pathway for hard-to-abate sectors and future energy exports, although it is still an emerging market rather than a major component of today's energy system.
What We're Watching
01 — Dry-year security
How will New Zealand maintain electricity supply when hydro reservoirs are low?
02 — Battery storage
Can BESS become a major source of flexibility as solar and wind expand?
03 — Renewable build-out
New Zealand needs significant additional generation as transport, industry and heating electrify.
04 — Gas & LNG
Will LNG provide a temporary bridge for energy security or become a longer-term part of the electricity mix?
05 — Offshore wind
Can offshore wind become commercially viable at scale?
06 — Electrification
How quickly can New Zealand reduce its heavy dependence on fossil fuels in transport and industry?
07 — Grid investment
Can transmission and distribution infrastructure keep pace with new renewable generation and rising electricity demand?
Energy Insider View
New Zealand doesn't have a renewable-energy problem. It has a flexibility problem.
With 85.5% of electricity already renewable, the next chapter is about making a highly renewable system firm, flexible and investable.
Hydro, geothermal, batteries, demand response, new wind and solar — and potentially offshore wind — will increasingly work together.
The bigger story is whether New Zealand can electrify transport and industry fast enough while keeping electricity affordable and maintaining security during dry years.
That makes New Zealand a particularly interesting market to watch as Asia-Pacific moves toward increasingly renewable power systems.
Sources
MBIE
Electricity Authority Te Mana Hiko
Ministry for the Environment
EECA
Transpower