Partial load
Diesel use per kWh can worsen at very low loading.
Model variation
Two engines of similar kVA can have different fuel curves.
Budgeting
Use expected operating hours and realistic average load rather than full-load consumption alone.
What a serious buyer should verify
What to include in a service scope
A clear service scope states inspection points, consumables, labor, testing, exclusions, emergency response terms and what happens if a failed component is not immediately available. For critical sites, define who can authorize emergency parts and how the site is supported during a prolonged repair.
After maintenance or major electrical work, verify automatic start, stable voltage/frequency, ATS behavior, alarm functions and a representative loaded run before returning the system to standby duty.
Operational checks that affect reliability
Reliability is strongly affected by conditions around the generator: battery condition, coolant and oil level, fuel quality, room temperature, airflow, exhaust backpressure, cable connections, earthing and the control/transfer sequence. A maintenance plan should cover the whole installed system rather than only the engine service interval.
Records are useful. Keep service dates, run hours, alarms, load-test results and replaced parts against the generator serial/model reference. This makes recurring faults easier to diagnose and gives the next technician a reliable history.
Research methodology and freshness
PS Power buying guides separates company claims, public third-party data and general engineering guidance. Dataset-specific figures are labelled with their scope; competitor names are used for buyer comparison without implying affiliation; and technical values are treated as references until verified against the final project and manufacturer documentation. Updated 30 September 2026.
Evidence worth requesting before purchase
Ask for the manufacturer data sheet, serial/model references, warranty terms, commissioning checklist and a clear list of inclusions and exclusions. For high-capacity or critical installations, request evidence of load testing and confirm the site engineering assumptions before delivery.
Brands commonly researched in Bangladesh
Industrial buyers frequently research Perkins, Cummins, Ricardo, Mitsubishi, Volvo Penta, Yanmar, Weichai, Yuchai, MTU, Baudouin, Doosan, Lovol. The practical comparison is not only brand versus brand: exact engine model, complete genset configuration, project duty and after-sales support determine whether a proposal fits the application.
Generator specification checklist
| Component | What should be written in the offer |
|---|---|
| Engine | Manufacturer and exact engine model. |
| Alternator | Manufacturer/model and insulation/protection class where specified. |
| Controller | Exact controller and required communications. |
| Rating | Prime and standby kVA/kW with applicable standard. |
| Enclosure | Open, silent canopy or containerized configuration. |
| Switching | ATS, motorized breaker or synchronizing scope. |
| Site works | Foundation, exhaust, fuel, cable, earthing and commissioning responsibility. |
Related research
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