A gas set usually costs more to buy and less to run. Whether it pays depends on the price of the gas you already have, how many hours a year the set runs, and whether you can use the waste heat.
Eleven sets on the Yuchai gas engine platform, from 200 kW to 1000 kW. Prime output at 50 Hz; the 1000 kW unit runs at 1000 rpm. Every set is built and load-bank tested to the same standard as our diesel line.
| Model | Engine | Freq. | Power (kW) | Speed (rpm) | Dimensions L×W×H (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| KB-YC6KG-200N5LC | YC6KG | 50 | 200 | 1500 | 3150 × 1320 × 1670 | 2910 |
| KB-YC6KG-250N5LC | YC6KG | 50 | 250 | 1500 | 3200 × 1320 × 1670 | 3030 |
| KB-YC6TG-300N5LC | YC6TG | 50 | 300 | 1500 | 3450 × 1400 × 1810 | 3650 |
| KB-YC6TDG-350N5LC | YC6TDG | 50 | 350 | 1500 | 3550 × 1470 × 1910 | 4270 |
| KB-YC6TDG-400N5LC | YC6TDG | 50 | 400 | 1500 | 3550 × 1470 × 1910 | 4390 |
| KB-YC6CG-400N5LC | YC6CG | 50 | 400 | 1500 | 4900 × 2560 × 2840 | 8690 |
| KB-YC6CG-500N5LC | YC6CG | 50 | 500 | 1500 | 4900 × 2560 × 2840 | 8890 |
| KB-YC6CG-600N5LC | YC6CG | 50 | 600 | 1500 | 4900 × 2560 × 2840 | 9030 |
| KB-YC12VTDG-700N5LC | YC12VTDG | 50 | 700 | 1500 | 5000 × 2560 × 2940 | 9050 |
| KB-YC12VTDG-800N5LC | YC12VTDG | 50 | 800 | 1500 | 5100 × 2560 × 2940 | 9350 |
| KB-YC12VCG-1000N5LC | YC12VCG | 50 | 1000 | 1000 | 6000 × 2600 × 3015 | 17500 |
Power figures are prime output at the rated load and ambient; altitude, cooling and tropical derating are applied per the site before the quotation. Send your gas composition and running hours for the sized proposal.
The points that separate a gas set engineered for the fuel from a diesel block converted to burn it.
Gas is not automatically cheaper. It wins in specific situations, and these are the four we see most often across Africa, the Middle East and Asia.
A gas train specified for piped natural gas is not the same as one for digester gas or flare gas. The composition analysis comes before the quotation.
| Gas source | Typical supply | Inlet condition | Usual duty |
|---|---|---|---|
| Natural gas | Piped mains or CNG | Typically 8 to 12 bar at the engine inlet after regulation | Prime or continuous |
| Biogas / digester gas | Anaerobic digestion | Methane content must be confirmed before sizing | Continuous |
| Associated / flare gas | Oilfield or landfill | Composition analysis required, gas train specified per site | Continuous |
| LPG | Bottled or bulk | Vapour draw rate checked against engine demand | Standby or prime |
Whichever the site burns, it goes down the same assembly line and through the same load-bank test. Here is how the two compare on the numbers that matter.
Where piped gas, flare gas or biogas is available, running on gas cuts fuel cost per hour sharply, and the waste heat can be recovered for CHP or process use. We quote the gas train against your composition analysis, not a generic natural gas kit.
The workhorse. Fast starting, tolerant of bad fuel, serviceable by any mechanic with a spanner. Our highest-volume line and the one we keep in stock.
A gas set is only as good as the gas delivery behind it. These five items sit with the site rather than with the set, and they are where gas projects most often stall.
Send us your local diesel price, gas price and the running hours you expect per year. We will put the cost per kWh for diesel and gas side by side, then size the set around whichever wins on your numbers.
We do not publish a running-cost saving figure, because it depends entirely on the gas price and the running hours at your site. Send both numbers with your enquiry and the comparison is arithmetic rather than a claim.
