Cold, damp homes are one of New Zealand's most significant public health problems — contributing to respiratory illness, cardiovascular disease, and mental health challenges, particularly for children and older adults. At the same time, buildings account for a significant share of New Zealand's energy use and emissions. Grant funding for energy efficiency serves dual purposes: improving health outcomes and reducing New Zealand's carbon footprint. Understanding the funding landscape helps community organisations, homeowners, and businesses access support.
Scale
Health impacts
Who is most affected
Warmer Kiwi Homes
The major government programme for home insulation and heating:
- Ceiling and underfloor insulation grants (up to 80% of cost for eligible homeowners)
- Clean heating grants (heat pumps, wood pellet burners)
- Eligibility: owner-occupiers on low incomes, in certain areas
- Administered by EECA (Energy Efficiency and Conservation Authority)
EECA grants
EECA runs multiple energy efficiency programmes:
- Warmer Kiwi Homes (residential)
- EnergyWise (appliance upgrades)
- Business energy efficiency (commercial and industrial)
- Transport decarbonisation
Healthy Homes Standards
The Healthy Homes Standards require rental properties to meet minimum standards for:
- Heating
- Insulation
- Ventilation
- Moisture ingress and drainage
- Draft stopping
Not a grant programme but drives landlord investment.
Kāinga Ora
Kāinga Ora (social housing) has upgraded most of its housing stock to energy efficiency standards.
Energy Trusts
Several energy trusts fund community energy efficiency in New Zealand:
- Energy Efficiency and Conservation Trust (various regions)
- Wellington Community Trust energy-related grants
Community foundations
Community foundations fund energy efficiency upgrades for community facilities.
Gaming trusts
Some gaming trusts fund insulation and heating grants for community organisations.
Healthy Homes Initiative
Government-funded but includes NGO delivery partners.
Home insulation
Heating upgrades
Ventilation
Solar installation
Community building upgrades
Education and behaviour change
Rural New Zealand faces specific energy challenges:
- Off-grid communities (solar, micro-hydro)
- High transport costs for fossil fuel (LPG, diesel)
- Grid connection costs for remote properties
- Rural community energy projects
Māori and Pacific whānau are disproportionately represented in cold, damp housing:
- Targeted insulation and heating grants
- Marae upgrade programmes
- Community housing energy upgrades
- In-language energy efficiency education
Health outcomes framing
Energy efficiency applications have powerful health outcome arguments — warm homes reduce hospital admissions, improve school attendance, reduce mortality. Quantify these outcomes, even in general terms.
Cost-benefit clarity
Energy efficiency investment pays for itself over time through reduced energy bills. Show the payback period and the ongoing savings — not just the upfront cost.
Equity focus
Energy efficiency benefits are most significant for those who can least afford poor housing — show that your programme prioritises low-income households, Māori, Pacific, and elderly communities.
Community organisation upgrade priority
Community organisations have multiple users — energy efficiency investments in community halls, marae, and sports clubs benefit many people. Show the number of users who benefit from a single upgrade.
Integration with Warmer Kiwi Homes
Show how your programme works alongside Warmer Kiwi Homes — funding the gaps it doesn't cover (education, complementary upgrades, community buildings).
Tahua's grants management platform supports energy efficiency funders and healthy homes programmes — with property improvement tracking, health outcome data, community reach measurement, and the tools that help energy efficiency funders demonstrate the health and environmental returns from warming New Zealand's coldest homes and buildings.