NZ Politics Costed

Environment & climate

What each party would do, and what it would cost over four years.

Net cost in this area

Four-year net. Bars share one scale. Solid adds to the deficit, light reduces it.

National
—
Labour
—
Green Party
+$3.62b
ACT
—
NZ First
—
Te Pāti Māori
+$1.50b
The Opportunity Party
+$2.40b
National—

Nothing announced in this area.

Labour—

Nothing announced in this area.

Green Party+$3.62b
Energy package (operating): KiwiPower operations, zero-interest solar loan subsidy, Warmer Kiwi Homes expansion (50,000 upgrades), community energy, EECA
+$2.10b
Partymedium

Party total operating expenditure through 2030/31 as reported by interest.co.nz (KiwiPower $100m/yr opex; solar loan interest subsidy $421m; Warmer Homes $970m; community energy $200m). Replaces the earlier single $3,052m row built from TU figures.

Source
Expand Jobs for Nature
+$1.52b
Partylow

Party GB2025 yearly 357/387/387/387. 2026 manifesto restates the pledge but gives no 2026 costing; figure is the party's own Green Budget 2025 costing (Infometrics-reviewed), used as the best available party figure. TU estimate $1,245m (lower; dropped).

Source
ACT—

Nothing announced in this area.

NZ First—

Nothing announced in this area.

Te Pāti Māori+$1.50b
Pungao Auaha Fund (solar/insulation retrofits for marae, kura, papakainga)
+$1.00b
Partylow

Climate manifesto: $1bn; timing unspecified. May overlap the Energy Sovereignty Fund.

Source
Matai Ahuwhenua regenerative agriculture investment
+$300m
Partylow

Climate manifesto: $300m; timing unspecified.

Source
Maori National Service Defence framework and Maori Taiao relief fund ($100m each)
+$200m
Partylow

Climate manifesto; timing unspecified.

Source
The Opportunity Party+$2.40b
Abundant Energy: ring-fence ~$500m/yr gentailer dividends for energy programme
+$2.00b
Partymedium

TOP: dividends diverted from core Crown revenue are 'a direct cost'. Covers Warmer Kiwi Homes expansion (~$200m), bus electrification (up to $125m), small-scale generation (~$25m), schemes and EV incentives ($126m initially). Capacity Investment Scheme is a contingent liability (expected value $0).

Source
Healthy Oceans (incl. bottom-trawling phase-out, marine research, coastal restoration)
+$400m
Partymedium

TOP: short-term annual cost 'no more than $100 million'; upper bound. TU recorded $100m over 4 yrs. Bottom trawling phase-out is a bottom line.

Source

Tags: Capital one-off spending that adds to debt rather than the annual deficit; Aspirational stated as a goal without a firm commitment; In current plans partly funded in Treasury's PREFU 2026 forecasts already. Change the filters above to include or exclude these.