PUT YOUR GAS SUPPLY TO WORK.
37.5–1750 kVA
Gas Generator Sets
Turn your natural gas supply into on-site power. Compare Weichai-powered generators for factories, commercial facilities and CHP projects, with the package matched to your load and site.
- 37.5–1750 kVA · 30–1400 kW listed range
- Weichai natural gas engines · 50 Hz models
- Open, sound-attenuated and container options
- Alternator and controller choices for your project
WHY SEER POWER
Built for
Real-World Power
Gas-Supply Review
Agreed Factory Tests
Shipping Coordination
Configuration Guidance
Explore Our Diesel Generator Series
Also comparing diesel power? Explore our diesel generator ranges for other fuel and project requirements.
Product Specifications
Weichai natural gas generator range at 50 Hz
| Model | Listed Output (kW / kVA) | Engine Model | Engine Brand | Alternator | Frequency (Hz) | Listed Current (A) | Enclosed L x W x H (mm) | Fuel |
|---|---|---|---|---|---|---|---|---|
| SP-30NG | 30 / 37.5 | WP4D40E200NG | Weichai | SEER / project option | 50 | 54 | 2600 x 1100 x 1400 | Natural gas |
| SP-60NG | 60 / 75 | WP4D77E300NG | Weichai | SEER / project option | 50 | 108 | 2600 x 1100 x 1400 | Natural gas |
| SP-100NG | 100 / 125 | WP6D132E300NG | Weichai | SEER / project option | 50 | 180 | 3200 x 1100 x 1700 | Natural gas |
| SP-150NG | 150 / 187.5 | WP10D200E300NG | Weichai | SEER / project option | 50 | 270 | 3700 x 1300 x 2100 | Natural gas |
| SP-250NG | 250 / 312.5 | WP13D317E300NG | Weichai | SEER / project option | 50 | 450 | 4400 x 1400 x 2220 | Natural gas |
| SP-400NG | 400 / 500 | 6M33D450E310NG | Weichai | SEER / project option | 50 | 720 | 5300 x 2100 x 2550 | Natural gas |
| SP-500NG | 500 / 625 | 12M26D605E300NG | Weichai | SEER / project option | 50 | 900 | 5900 x 2250 x 2550 | Natural gas |
| SP-800NG | 800 / 1000 | 12M33D900E310NG | Weichai | SEER / project option | 50 | 1440 | 5900 x 2250 x 2550 | Natural gas |
| SP-1100NG | 1100 / 1375 | 16M33D1280NG10 | Weichai | SEER / project option | 50 | 1980 | 12192 x 2438 x 3500 | Natural gas |
| SP-1400NG | 1400 / 1750 | 12M55D1588A0NG | Weichai | SEER / project option | 50 | 2520 | 12192 x 3000 x 3000 | Natural gas |
The table lists SEER POWER's published natural gas models and enclosure dimensions. The operating rating, gas requirements and final configuration are confirmed for your selected model. Photos illustrate package formats; they do not identify the configuration of every model.
Swipe horizontally to view all specifications.
GENERATOR SYSTEM
Standard Configuration
CURRENT SELECTIONGas Engine / Weichai
Weichai Gas Engines
Weichai natural gas engines cover the listed 30–1400 kW range. Select the model around your electrical load, gas supply and operating hours.
Engineering note
Cooling and exhaust arrangements follow the engine, installation and local climate.
Selection note
The quotation identifies the engine model, operating rating and supplied equipment.
Product Features
Weichai natural gas engines
Operating duty checked by model
Cooling and exhaust scope defined
Gas supply matched to the engine
STAMFORD Alternators
Review the proposed STAMFORD series and its voltage-regulator options. Match the alternator to the load and the required voltage stability.
Engineering note
Check motor starting, voltage regulation and site conditions when selecting the alternator.
Selection note
The quotation confirms the alternator model, excitation and protection required for the project.
Product Features
- Alternator matched to the load
Voltage and phase specified
Starting loads reviewed
Final brand and model quoted
Leroy-Somer Alternators
Compare the proposed Leroy-Somer model with the load’s motor-starting and voltage-control needs. Select the excitation arrangement for the project.
Engineering note
Check motor starting, voltage regulation and site conditions when selecting the alternator.
Selection note
The quotation confirms the alternator model, excitation and protection required for the project.
Product Features
- Alternator matched to the load
- Voltage and phase specified
- Starting loads reviewed
- Final brand and model quoted
Marathon Alternators
Select the proposed Marathon frame and insulation configuration around the operating environment. Confirm the regulator and winding with the generator package.
Engineering note
Check motor starting, voltage regulation and site conditions when selecting the alternator.
Selection note
The quotation confirms the alternator model, excitation and protection required for the project.
Product Features
- Alternator matched to the load
- Voltage and phase specified
- Starting loads reviewed
- Final brand and model quoted
SEER POWER Alternators
SEER POWER coordinates the alternator and gas engine as one package. The technical specification records the selected electrical and mechanical interfaces.
Engineering note
Check motor starting, voltage regulation and site conditions when selecting the alternator.
Selection note
The quotation confirms the alternator model, excitation and protection required for the project.
Product Features
- Alternator matched to the load
- Voltage and phase specified
- Starting loads reviewed
- Final brand and model quoted
Deep Sea Electronics (DSE) Control Systems
Choose the monitoring, alarm and engine-interface functions required from the proposed DSE controller. Its model must suit the selected gas engine.
Engineering note
Define start/stop commands, monitoring, alarms and any transfer or parallel operation.
Selection note
The controller model, communications and protection functions are specified for the selected package.
Product Features
Gas-engine compatibility
Operating mode defined
Alarms and protection specified
Remote interfaces by project
ComAp Control Systems
Define the operating sequence, remote-start commands and communication interfaces required from the proposed ComAp controller. Confirm the model for the gas engine.
Engineering note
Define start/stop commands, monitoring, alarms and any transfer or parallel operation.
Selection note
The controller model, communications and protection functions are specified for the selected package.
Product Features
- Gas-engine compatibility
- Operating mode defined
- Alarms and protection specified
- Remote interfaces by project
Fortrust Control Systems
Match the proposed Fortrust controller to the site’s start-stop and transfer logic. Engine interfaces and available functions are checked by model.
Engineering note
Define start/stop commands, monitoring, alarms and any transfer or parallel operation.
Selection note
The controller model, communications and protection functions are specified for the selected package.
Product Features
- Gas-engine compatibility
- Operating mode defined
- Alarms and protection specified
- Remote interfaces by project
SmartGen Control Systems
Specify monitoring points, protection functions and communication requirements for the proposed SmartGen controller. Confirm compatibility with the selected gas engine.
Engineering note
Define start/stop commands, monitoring, alarms and any transfer or parallel operation.
Selection note
The controller model, communications and protection functions are specified for the selected package.
Product Features
- Gas-engine compatibility
- Operating mode defined
- Alarms and protection specified
- Remote interfaces by project
Generator Output Protection
The output circuit breaker forms part of the SEER POWER electrical package. Select its rating for the generator and installation.
Engineering note
Check rated current, breaking capacity and coordination with the site distribution system.
Selection note
The quotation identifies the breaker make, model and supplied protection functions.
Product Features
- Output rating matched
- Breaking capacity specified
Protection coordination reviewed- Supplied breaker identified
SEER POWER Base Frame
The steel base supports the gas engine and alternator as one assembly. Mounting points follow the selected generator model.
Engineering note
Plan lifting, anchoring and maintenance access around the installation drawing.
Selection note
Final dimensions, weight and mounting details are supplied with the selected package.
Product Features
Engine and alternator support
Foundation drawing supplied as agreed- Lifting and service access
- Installation dimensions confirmed
SEER POWER Starting System
The starting-battery arrangement is matched to the engine’s starting system. Battery capacity, quantity and connections depend on the selected model.
Engineering note
Confirm charging, cable routing and maintenance access for the installation.
Selection note
The quotation identifies the battery manufacturer, voltage, capacity and supplied accessories.
Product Features
- Engine-matched starting system
- Battery specification quoted
Charger and cabling scope defined- Site interfaces confirmed
Optional Configurations
Sound-Attenuated Enclosure
Choose a sound-attenuated enclosure to suit your site’s noise limit. Cooling airflow and service access are matched to the selected gas generator.
Containerized Package
Use a containerized package for larger installations. Cooling, transport dimensions and maintenance access follow the selected generator and site layout.
Automatic Transfer (ATS)
An ATS switches selected loads between utility and generator supplies. Load rating, transfer sequence and start signals are specified for the project.
Parallel Operation
Coordinate multiple generators or a utility connection with synchronization, load sharing and protection. Switchgear and utility approval follow the project design.
CHP Heat Recovery
Recover engine heat for hot water or process heating where the site has a steady heat demand. Heat-recovery equipment is sized for the project.
Gas Power for Your Industry
For sites with a dependable gas supply, natural gas generation can support on-site power needs. CHP projects also need a useful heat demand that matches the running schedule.
Power for commercial buildingsSize for cooling equipment, pumps and lifts. Check gas availability, load priorities, transfer arrangements and the site noise limits.
Gas generator packagesTypical applications for this power range, subject to the confirmed load and project requirements.
Typical application fitRetail complexes, mixed-use developments and shared building services.
Selection focusSize for cooling equipment, pumps and lifts. Check gas availability, load priorities, transfer arrangements and the site noise limits.
Cooling loadsGas supply
Load priority
Noise limits
Power for food productionCompare electrical demand with production hours. Where heat can be used, assess CHP alongside the plant's temperature and hygiene requirements.
Gas generator packagesTypical applications for this power range, subject to the confirmed load and project requirements.
Typical application fitFood and beverage plants with production, refrigeration and process heating loads.
Selection focusCompare electrical demand with production hours. Where heat can be used, assess CHP alongside the plant's temperature and hygiene requirements.
Production hoursRefrigerationProcess heat
Hygiene requirements
Power for energy projectsMatch generator output and operating hours to site demand. Where the site can use engine heat, assess CHP as part of the project design.
Gas generator packagesTypical applications for this power range, subject to the confirmed load and project requirements.
Typical application fitOn-site power stations and energy centres with a dependable gas supply.
Selection focusMatch generator output and operating hours to site demand. Where the site can use engine heat, assess CHP as part of the project design.
Heat demand
Load profile
Controls
Connection plan
Power for industrial productionCheck motor starting, simultaneous loads and daily operating hours. Confirm the generator rating for the production schedule.
Gas generator packagesTypical applications for this power range, subject to the confirmed load and project requirements.
Typical application fitFactories, workshops and process equipment with a suitable natural gas supply.
Selection focusCheck motor starting, simultaneous loads and daily operating hours. Confirm the generator rating for the production schedule.
Motor startsPeak demandRunning hours
Site conditions
Power for agricultural operationsCheck pumps, refrigeration and seasonal demand. For heat recovery, compare the useful heat load with the generator's operating hours.
Gas generator packagesTypical applications for this power range, subject to the confirmed load and project requirements.
Typical application fitProduce handling, cold storage, irrigation and agricultural facilities with an available gas supply.
Selection focusCheck pumps, refrigeration and seasonal demand. For heat recovery, compare the useful heat load with the generator's operating hours.
Pump loadsCold storageSeasonal loadHeat demand
Power for multi-building sitesReview the combined electrical load, available gas supply and central heating demand. Plan transfer or parallel operation around the site's power strategy.
Gas generator packagesTypical applications for this power range, subject to the confirmed load and project requirements.
Typical application fitEducation campuses, business parks and shared facilities with coordinated energy needs.
Selection focusReview the combined electrical load, available gas supply and central heating demand. Plan transfer or parallel operation around the site's power strategy.
Combined loadGas supplyHeating demandPower strategyFREQUENTLY ASKED QUESTIONS
SEER POWER lists 30, 60, 100, 150, 250, 400, 500, 800, 1100 and 1400 kW natural gas models with Weichai engines at 50 Hz. These are listed outputs, not a blanket continuous-power rating. Send your load and daily running hours so we can confirm current availability and the right operating rating. Biogas and associated-gas models use separate configurations.
Send the gas source, a gas analysis or composition, available inlet pressure and flow, electrical load, voltage, frequency, running hours, altitude and ambient temperature. LNG or CNG requires suitable upstream preparation before use. Fuel requirements and gas consumption depend on the selected engine and operating conditions.
Yes. Automatic transfer, parallel operation and combined heat and power (CHP) are separate project options. Share the operating mode, utility-connection requirements and any useful heat demand. Heat recovery, switchgear, protection and interfaces must be defined for the project; they are not automatically included with the generator.
The quotation lists the engine, alternator and controller, together with the base frame, output breaker, starting batteries and any charger or accessories in the supply scope. It also defines cooling, exhaust and gas interfaces, optional equipment and site installation responsibilities. Request the model datasheet, arrangement drawing, wiring diagram, operating manual and agreed factory test records.
TESTED. TRUSTED. DELIVERED.
Agreed Factory TestsTest scope and records confirmed in the quote
Load-Test ScopeElectrical load testing agreed for the package
Delivery DocumentsPacking and shipment documents coordinated
Technical GuidanceCommissioning and operating support scope confirmed