Achates is developing high fuel-efficiency opposed-piston engines that aim to significantly reduce carbon dioxide and nitrogen oxide emissions

At a glance


Year founded: 2004

Year joined OGCI Climate Investments: 2017

Leadership: David Crompton, Chief Operating Officer and President; Laurence Fromm, Chief Commercial Officer


News and resources

Deployment Case Studies


Achates Power’s opposed-piston engine on the road with Walmart

The Californian Air Resources Board (CARB) has introduced regulations that require a 90% reduction in tailpipe NOx from commercial vehicles, starting in 2027


Achates Power: Demonstrating a 96% reduction in commercial vehicle emissions

Medium and heavy duty vehicles make up a relatively small proportion of road traffic, yet they present an outsized contribution to air pollution.

Our investments

We invest in solutions to decarbonize oil and gas, industrials, commercial transport and buildings.
Find out more about our investments.