Introduction: Why Suitable Generator Selection Matters?
Selecting a diesel generator set isn’t just about power – it’s about reliability, cost-efficiency, and long-term value. At Wiseke Power, we’ve helped our clients across 20+ countries navigate this critical decision. Below is our proven 4-step framework to match your needs with the right genset.
Step 1: Power Calculation – Avoid Costly Oversizing
Rule of Thumb:Required Generator Capacity = Total Load (kW) × 1.1
- 10% Power Buffer: Accounts for startup surges (e.g., motor-driven equipment).
- Economic Sweet Spot: Prevents wasted fuel on oversized units while ensuring stability.
Step 2: Engine Brand Selection – Global vs. Cost-Effective Options
| Brand Class | Examples | Best For |
|---|---|---|
| Global Premium | Cummins, Perkins,MTU,Volvo,Baudouin | Mission-critical operations |
| Value Leaders | Yuchai, SDEC, Weichai Power | Budget-conscious projects |
Step 3: Prime Rate vs. Standby Rate – Know Your Runtime Needs
| Power Type | Usage | Capacity Rule |
|---|---|---|
| Prime Rate | Long hours operation, 8 hours or more running time. | 100kW need = 110kW genset |
| Standby Rate | Emergency backup , normally 1 hour every 12 hours. | 100kW need = 90kW genset |
Step 4: After-Sales Service – The Hidden Cost Saver
Some Flags to Avoid:
⚠️ No local service centers in your region
⚠️ Spare parts supply not convenient
Conclusion: Your Checklist for Success
- Calculated load + 10% buffer
- Selected brand aligned with budget
- Confirmed prime or standby rate configuration
- Verified supplier’s service and parts supply capabilities
Need Personalized Advice?
Contact with Wiseke’s service team to:
- Get region-specific brand recommendations and proposal.
- Request a genset layout drawing
- Suggestions for your power need.
