Dual fuel conversion, pay less per kWh.
Convert your diesel generator to run on diesel + gas. Up to 70% gas substitution, 30-40% lower fuel bill, and diesel-like performance with lower emissions.
- Up to 70% gas
- 30–40% fuel savings
- Retrofit
- Reversible




A kit that makes your diesel genset cheaper to run.
Dual fuel kits breathe new life into existing diesel generators by combining diesel and gas — reducing emissions and running cost. OVN brings an innovative patented technology that allows engines to safely operate on gas percentages up to a maximum of 70% of the total fuel requirement.
Engines converted to dual fuel exhibit diesel-like performance in critical areas — efficiency, stability and load acceptance. If the gas supply ever fails, the engine simply reverts to 100% diesel operation without intervention.
Six benefits in one kit.
30–40% fuel cost cut
Gas is cheaper than diesel — every percentage of substitution drops your operating bill. Typical savings 30–40% vs diesel-only.
Up to 70% gas substitution
Patented kit allows engines to safely run on up to 70% gas. The rest is diesel (for pilot ignition).
Diesel-like performance
Converted engines retain diesel-like efficiency, stability and load acceptance — no material drop in performance.
Easy installation
Retrofit on your existing diesel genset. No new genset purchase, no long downtime.
Lower emissions
Gas combustion is cleaner. Lower NOx, lower PM — aligns with emission reduction programmes.
Reversible
If gas supply fails, the engine simply runs on diesel. No additional action required.
Frequently asked questions
What is dual fuel conversion?
A retrofit kit that lets a diesel generator run on a mixture of diesel and gas (usually natural gas or LPG). A small percentage of diesel is still used for pilot ignition; the rest is gas.
How much can I save?
Typical savings are 30-40% on fuel cost vs diesel-only, depending on load profile and gas price. Plants running gensets at high utilization see the fastest payback.
Does the genset still run on pure diesel if gas supply fails?
Yes. The system falls back to 100% diesel operation seamlessly. You are never stranded by a gas outage.
Will the engine's reliability suffer?
No — the technology is engineered to operate within OEM envelopes. Efficiency, stability and load acceptance remain diesel-like.
What gas types are supported?
Natural gas (piped or CNG) and LPG are the common fuels. Biogas is supported on some units — confirm with us based on your genset.
Want a payback estimate for your DG?
Share the make, model, KVA and monthly run-hours. We'll size the kit and estimate the savings.
