Kaduna · Abuja · Kano · Lagos
Cut your generator fuel bill by up to 54%
We convert your existing diesel generating set to run on compressed natural gas alongside diesel — no new generator, no pipeline needed. Your engine stays; only its fuel bill changes.
- Fuel cost cut
- up to 54%
- Generator replaced
- Never
- Gas pipeline
- Not required
Typical annual saving
At 10 hours/day, around 62.5% load, current Lagos fuel prices.
40 kVA
50% CNG target
₦11.3 million
38.8% saved
100 kVA
70% CNG target
₦39.5 million
54.4% saved
200 kVA
70% CNG target
₦79.1 million
54.4% saved
500 kVA
70% CNG target
₦197.7 million
54.4% saved
1,000+
vehicles and generating sets converted
4
offices and operating bases nationwide
9
service lines, from a single car to a complete gas plant
Why this matters
Diesel is the single biggest line in your running cost
Keep your generator
A dual-fuel retrofit works with the engine you already own. There is no capital outlay on a new generating set, and if the gas supply is ever interrupted the engine simply runs on 100% diesel as before.
No pipeline required
Piped gas has not reached most Nigerian addresses. We supply your CNG in a cylinder cascade mounted on a wheeled cart that any vehicle can tow to a filling station and back.
Numbers before you commit
Every client receives a written technical and financial analysis of their own generating set before any work is quoted — nameplate data, projected savings, and the risks stated plainly.
The numbers
What a conversion is worth on your generator
| Generating set | CNG target | Diesel only / year | Dual-fuel / year | You save / year |
|---|---|---|---|---|
| 40 kVA | 50% / 50% | ₦29,101,450 | ₦17,803,240 | ₦11,298,210 |
| 100 kVA | 70% / 30% | ₦72,753,625 | ₦33,209,890 | ₦39,543,735 |
| 200 kVA | 70% / 30% | ₦145,507,250 | ₦66,419,780 | ₦79,087,470 |
| 500 kVA | 70% / 30% | ₦363,768,125 | ₦166,049,450 | ₦197,718,675 |
What we do
From one generator to a complete gas plant
Consultancy & advisory
Feasibility and demand studies, fleet transition planning, owner's engineer review and regulatory advisory — sold on its own, before any equipment decision.
Learn more
Car CNG conversion
Bi-fuel conversion for petrol cars — 100% gas with petrol at the press of a button, and the biggest percentage saving we deliver anywhere.
Learn more
Technical & financial analysis
A written report on your generating set: nameplate data, projected savings at your duty cycle, sensitivity to achieved substitution, and the technical risks.
Learn more
Generator CNG conversion
Supply and fitting of European pilot-ignited dual-fuel kits — gas train, mixer or injectors, dedicated controller, and full safety systems.
Learn more
Truck & fleet CNG conversion
The same dual-fuel principle applied to trucks, tippers and tankers, with cylinder capacity sized against the routes your fleet actually runs.
Learn more
CNG & LNG stations, built from the ground up
Mother and daughter stations, LNG regasification and captive plants — bare plot to commissioned facility, engineered and built in house under one EPC contract.
Learn more
100% CNG generating sets
Spark-ignition gas gensets that burn no diesel at all — no pilot charge, no conversion derate, and around a 75% cut in fuel cost against the diesel set they replace.
Learn more
Dedicated 100% CNG trucks
Factory gas prime movers and rigids running entirely on CNG, with cylinder capacity sized against the corridors your fleet actually runs.
Learn more
Equipment we sell
Cryogenic tanks, regasification skids, compressor packages, CNG process skids, dispensers and nozzles, cascades, certified cylinders and conversion kits.
Learn more
Control & automation
Control panels, automatic transfer switches, generator synchronisation, and SCADA that tells you what your plant is actually doing.
Learn more
CNG cascade & cart
A cylinder bank on a wheeled cart with tyres that any vehicle can tow to a CNG station for refilling, built so more cylinders can be added later.
Learn more
Installation & calibration
Mechanical installation, controller calibration against your real load profile, commissioning, and operator training for your own staff.
Learn more
Our flagship work
We build the CNG and LNG plants our clients run on
- CNG mother and daughter stations — pipeline-fed compression to 250 bar, high-pressure storage, bay loading and dispensing.
- LNG storage and regasification — cryogenic tanks at −162 °C, vaporisers, letdown and metering, for volumes CNG logistics cannot practically carry.
- Satellite stations off the grid — sites hundreds of kilometres from a pipeline, supplied by ISO tank or tanker rather than excluded.
- Captive plants for a single site — sized to one factory or estate’s own consumption, not to a commercial throughput.
- One contract, one accountable contractor — engineering, procurement and construction together, with our own mechanical, process, electrical and controls engineers.
We also sell the equipment. Cryogenic storage tanks, regasification skids, compressor packages, CNG process skids, dispensers and nozzles, cascades and certified cylinders — specified against how they will actually be used, because we build the plants they go into.
Mobile CNG supply
Your gas comes to you, on wheels
- One quick-disconnect coupling — a refill trip never disturbs the dual-fuel kit or the generator itself.
- Rolls by hand on four heavy-duty lockable castors; fork pockets and lifting eyes are built in as a backup.
- Vehicle-agnostic — not tied to one truck, so whatever is available that day can make the run.
- Expandable — the frame accepts additional cylinders, or additional skids, as your gas demand grows.
Roro Technology mobile CNG cascade skid — design concept
How we work
From nameplate photo to running on gas
- 01
Send your nameplate
A photo of the generator's rating plate on WhatsApp is enough for us to begin. We identify the set and its prime rating.
- 02
Get the analysis
We issue a written technical and financial analysis: projected savings at your hours and load, plus the technical considerations.
- 03
Survey & quotation
A site survey confirms the gas train routing, cascade siting and safety requirements. You receive a firm proforma invoice.
- 04
Install & commission
We fit the kit, plumb the cascade, calibrate the controller against your real load, and train your operators.
54% / 75%
Fuel cost reduction
Up to 54% converting your diesel set to dual-fuel; around 75% on a 100% CNG set that burns no diesel at all.
ISO 8528
Sets we work with
Cummins, Perkins, Weichai, Mikano, Marapco and other ISO 8528 diesel gensets.
0
Generators replaced
Retrofit only. Your engine, alternator and canopy all stay exactly as they are.
Straight answers
We tell you what a conversion will not do
The 70/30 split is an average, not a constant.
CNG substitution in a pilot-ignited engine is load-dependent. At idle and light load the controller runs on nearly all diesel; substitution peaks in the 60–100% load band. The target is a duty-cycle weighted average, achieved through load-matching and calibration — and we say so in writing rather than promising a fixed ratio at every load point.
Expect a small power derate.
Because CNG carries less energy per unit volume of intake charge and a knock-protection margin is applied, dual-fuel engines are commonly derated by roughly 3–8% versus pure diesel. If your set runs close to its limit, we size for that in the survey.
Check your OEM warranty first.
If your generating set is still within its manufacturer warranty, we will help you confirm the terms with the OEM or dealer before any work begins, so the conversion is planned in a way that protects your cover.
We are hiring
Business Development Managers and certified CNG technicians
Business Development Managers in Lagos, Kaduna and Abuja, and certified CNG conversion technicians in every state where we have a branch. Technicians apply with a short form — no CV needed, and no fee at any stage. Everyone else sends a CV.
Ready to cut your generator fuel bill?
Send us a photo of your generator nameplate and we will prepare a written technical and financial analysis for your specific set — including projected savings at your actual running hours.
Or email sales@rorotechnologies.com