Police will get 45 electric cars and all coal boilers will be removed from schools.

The projects have been announced this afternoon as the Government invests $22.92 million in new decarbonisation initiatives.

Along with Prime Minister Jacinda Ardern, Climate Change Minister James Shaw and Energy and Resources Minister Megan Woods unveiled 19 new projects today.

Police will invest $1.7m to buy 45 electric vehicles and install charging infrastructure.

And Shaw said woody biomass or electric heating sources in schools will replace coal boilers.

He said the boiler project will cost $10m, and cut carbon emissions by about 35,400 tonnes over a decade.

"This investment means more young people will be kept warm and healthy at school, using clean, green, low-carbon energy," Shaw added.

The Ministry of Education has described boiler heating systems as a safe, low-cost method of heating schools.

Other new projects include a Kāinga Ora investment in electric vehicles (EVs) and charging infrastructure for 141 vehicles.

TVNZ will invest $57,000 on EVs and charging infrastructure for two vehicles.

The Ministry of Social Development will invest $3.37m to buy electric vehicles (EVs) and install charging infrastructure for 109 cars.

Bay of Plenty, Capital & Coast, Wairarapa, MidCentral, and Southern DHBs will also invest in projects including electric cars, a heat pump and more efficient lighting.

The Department of Corrections will buy 24 EVs, WorkSafe will buy 18, and both will invest in charging infrastructure.

The University of Waikato will spend $80,000 to replace two gas boilers at a Student Village in Hamilton.

Northland Polytechnic will install efficient lighting.

Lincoln University will buy two EVs, and so will Landcare Research.

The projects announced today are part of a new allocation from the Government's $220m State Sector Decarbonisation Fund.

New Zealand emitted 82.3 million tonnes of carbon dioxide equivalent in 2019, according to Stats NZ.