High-Pressure CNG Systems · North America

Clean fuel power.
Diesel efficiency.

12K+

Trucks in commercial operation

3B+

Kilometers Driven on HPDI

35+

Countries in operation

~400

Patents and applications

Newly designed for North America. High-pressure CNG storage and delivery with fuel flexibility across natural gas, renewable natural gas, and hydrogen blends — diesel performance at a lower total cost of ownership.

Talk to our team

Up to10

MPG diesel equivalent

1850+

lb-ft of Torque

500

2.6x

Farther per $ than diesel

Why this system

No need to choose between cost, emissions, and performance.

Zero compromise

Maintains diesel-like performance — full power, torque, and payload.

Lower cost, lower emissions

Cut fuel spend and CO₂ at the same time. No trade-off between the two.

Existing infrastructure

Leverages the established North American natural gas fueling network.

Future
proof

Fuel-flexible by design, optimized for CNG, RNG and H2

How it works

Built for North American duty cycles.

The system stores compressed natural gas at high-pressure on the vehicle, engineered for heavy and mid-duty fleets that need diesel - equivalent performance without giving up payload or driver experience.

High-pressure storage

On-vehicle compressed natural gas tanks engineered for range and payload.

Delivery system

Regulates and delivers gas to the engine at diesel-equivalent performance.

Fleet integration

Designed to drop into existing heavy and mid-duty platforms.

Fuel agnostic by design

CNG, RNG, and a path to hydrogen.

Built around existing natural gas infrastructure, with renewable
natural gas and hydrogen blends supported on the same platform.

CNG

1,300+ CNG stations keep key North American freight corridors moving.

RNG

94% of U.S. natural gas trucks run on RNG today and growing

H₂

Blended H2 builds a practical path to wider adoption.

Who it's for

Different priorities. One system that meets both.

For fleets

Lower fuel costs, lower emissions

Leverage existing infrastructure and fuel supply to cut cost and CO₂ — without a trade-off on performance.

For OEMs

North American-built, drop-in ready

Integrate a fuel storage system designed for the market, while keeping diesel-like combustion and performance.

Practical applications

Where these systems run.

One platform, deployed across duty cycles and industries. Content to be supplied by the client per application.

Heavy-duty

High-capacity powertrains built for long-haul transport, heavy payloads, and demanding highway duty cycles.

Mid-duty

Versatile fuel solutions optimized for regional distribution, urban logistics, and daily commercial routes.

Off-road

Reliable energy systems engineered to withstand extreme terrain, remote operations, and heavy environments.

Where CNG comes from

Fuel flexibility without compromise for North America

The CNG system draws on the same high-pressure component and injection expertise behind HPDI — now purpose-designed for the North American market and its fueling infrastructure.

That heritage is why it delivers diesel-equivalent performance rather than asking fleets to accept a compromise.

Our story

NEWSROOM

What we're working on.

All news and insights

Press release

Westport Rebrands as Aetherion™ Technologies, Focused on Accelerating Proven Solutions for Heavy-Duty Clean Transport

New identity highlights growing demand for high-performance, commercially ready solutions to support affordable decarbonization across global fleets New identity highlights growing demand for high-performance, commercially ready solutions to support affordable decarbonization…