An Auckland waste management company has converted methane gas from a landfill site into vehicle fuel.
Transpacific Industries says it is converting gas from the dump into nine megawatts of electricity, which is enough to power 11,000 homes a year.
It says it would like to provide fuel for all the rubbish trucks in Auckland using gas from the tip. It says it's currently running one of its own rubbish trucks on the gas.
The company says the biogas gives the same performance as conventional fuel and is also cheap to produce, relative to other biofuels, because natural anaerobic activity underground does much of the work.
Managing director Tom Nickels says Redvale Energy Park has the potential to produce the equivalent of 54 million litres of diesel each year.