New Zealand's electricity system is already approximately 85% renewable — one of the world's highest rates — driven by hydro, geothermal, wind, and solar generation. But the transition to a fully decarbonised energy system requires significant additional investment: electrification of transport, industry, and heating; grid expansion for new generation; and community energy projects that serve remote and disadvantaged communities. Grants and subsidies play a role in accelerating this transition.
EECA — Energy Efficiency and Conservation Authority
EECA is the primary government agency for energy efficiency and clean energy in New Zealand. Its grant and support programmes include:
GIDI Fund (Government Investment in Decarbonising Industry)
The GIDI Fund co-funds industrial decarbonisation — helping businesses replace fossil fuel energy with renewable electricity or low-carbon alternatives:
- Co-investment in switching from coal, gas, or diesel to renewable electricity
- Available to businesses with significant energy use
- Multi-round competitive process
- Grants typically cover 40-50% of project cost
Energy Efficiency for Business
EECA's business efficiency programmes:
- Energy audits and feasibility studies
- Technical advice and support
- Some co-funding for efficiency improvements
Efficient Homes Programme
Warm up NZ Heat Smart and successor programmes have provided grants for home insulation and heating:
- Ceiling and underfloor insulation subsidies
- Efficient heating device subsidies
- Targeting low-income households
Community Renewable Energy Fund
Some government funding has targeted community-owned renewable energy:
- Community solar projects
- Remote and rural electrification
- Marae and community facility renewable energy
Marae and community facilities are eligible for several energy efficiency and renewable energy grants:
Marae in particular have been highlighted as important settings for renewable energy — many marae are in rural locations well-suited to solar and are community gathering places with significant energy needs.
Several programmes specifically target low-income households:
Warmer Kiwi Homes
The government's Warmer Kiwi Homes programme provides:
- Grants for ceiling and underfloor insulation (up to 80% of cost)
- Grants for efficient heating devices (heat pumps, wood burners)
- Targeted at lower-income households and older, cold homes
Community Energy Networks
Some community energy projects specifically address energy poverty — helping low-income households access affordable clean energy through collective purchasing, social enterprise models, or philanthropic cross-subsidy.
Some regional and local authorities have supplementary energy efficiency and renewable energy grant programmes:
Private philanthropy is increasingly engaging with clean energy:
Climate philanthropy
Climate-focused foundations and trusts fund clean energy transition work:
- Policy advocacy for renewable energy
- Community energy resilience projects
- Research and innovation in clean energy technologies
- Just transition support for communities affected by fossil fuel industry decline
Conservation trusts
Some conservation-focused trusts fund renewable energy as part of broader environmental strategy — particularly for rural and conservation properties.
Community foundation energy grants
Some community foundations fund community renewable energy projects — particularly for community facilities in areas without grid electricity access.
Large energy companies sometimes offer grant-like programmes:
- Community benefit funds associated with wind farm and solar development consents
- Partnership programmes with community groups
- Community electricity discounts or cross-subsidies
When new generation projects are consented, their resource consents may include community benefit obligations — local energy grants, community investment funds, or local employment commitments.
Key elements of successful energy grant applications:
Technical specificity: energy grants require technical detail — existing energy consumption, proposed system specifications, projected energy savings (kWh and cost), and emission reduction (tonnes CO2e). Engage a qualified energy assessor.
Business case: demonstrate that the investment is economically viable — what is the payback period? What is the cost per unit of carbon reduction?
Community benefit: for community-facing grants, articulate community benefit — who else benefits from this project? Is there demonstration value for others to follow?
Matching funding: most energy grants require co-funding — have your own capital commitment confirmed before applying.
Consent and regulatory compliance: energy projects may require building consents, connection approvals, and in some cases resource consents. Demonstrate that regulatory requirements are addressed.
Tahua's grants management platform supports funders managing clean energy grant programmes — with project milestone tracking, co-investment management, technical outcome reporting (energy savings, emission reductions), and the portfolio tools that help energy funders manage a diverse range of clean energy investments.