Clean energy expert Peter Liebreich has criticised the New Zealand dairy industry for using coal - powered boilers to dry milk , dubbing it " insane " . During a visit to the country , Liebreich called on farmers to electrify boilers using electricity that was already 85 % renewable . He said the government 's target of 100 % renewable electricity by 2035 was good , though more flexibility was still needed . Why not? Farmers have criticised the country 's methane reduction targets , while dairy cooperative Fonterra said it would not install new coal boilers after 2030 .
Clean energy expert Peter Liebreich has criticised the New Zealand dairy industry for using coal - powered boilers to dry milk , dubbing it " insane " . During a visit to the country , Liebreich called on farmers to electrify boilers using electricity that was already 85 % renewable . He said the government 's target of 100 % renewable electricity by 2035 was good , though more flexibility was still needed . Farmers have criticised the country 's methane reduction targets , while dairy cooperative Fonterra said it would not install new coal boilers after 2030 .