Before choosing a specific diesel generator model, the most crucial yet often overlooked step is: how do you calculate power requirements?
This article offers a clear and simple walkthrough.
🔢What is Power?
Power refers to the maximum electrical output a generator can provide, typically measured in kW (kilowatts). Your required power should be calculated by summing up the usage of all machines, devices, and lighting.
🔹 Step 1: List All Electrical Equipment
Example:
- Lights x 10 = 0.1kW × 10 = 1kW
- Computers x 5 = 0.3kW × 5 = 1.5kW
- Air Conditioners x 2 = 1.5kW × 2 = 3kW
- Machinery x 1 = 5kW
📅 Total base load = 10.5kW
🔹Step 2: Add a Safety Factor
Some equipment requires more power during startup. It’s common to multiply by a 1.2–1.5 safety factor to ensure smooth operation.
📈 Formula:
Total Power × Safety Factor = Required Generator Output
💰 10.5kW x 1.3 =≈ 13.65kW
So, you’ll need at least a 14kW diesel generator to handle this load.
📚Real Case: Electronics Factory Backup Planning
Background: A mid-sized electronics factory with:
- Production & office lighting: 20 sets = 2.5kW
- Computers + control systems: 10 sets = 3kW
- CNC machines: 2 units = 14kW
- Air compressor + HVAC: 6kW
Total power: 2.5 + 3 + 14 + 6 = 25.5kW
Add safety factor 1.3 → 25.5 × 1.3 = 33.15kW
Solution: KINGBEST recommends a 40kW diesel generator, which covers daily loads and future expansion. Includes soundproof enclosure, remote auto-start, and ensures uninterrupted operation.
📊Power Needs Vary by Scenario
- Construction sites: High total loads, large startup current
- Data centers: Require 24/7 uptime, consider Prime/Continuous rating
- Occasional use: For emergency-only backup, choose Standby type
📄Match Specs to Real Demand
Best practice: List every load, calculate total usage, and apply safety factors.
📌 We offer free load analysis and custom generator recommendations.
🔗 Let KINGBEST Power help you design the best-fit backup strategy.
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