Question 1

How much does a used diesel generator cost?

Accepted Answer

Used diesel generators range from £500 for small portable units (5–10kVA) to £100,000+ for large industrial standby sets (1–2MVA). A 100kVA standby generator from FG Wilson, Cummins, or Perkins typically costs £5,000–£15,000.

Question 2

What should I check when buying a used generator?

Accepted Answer

Key checks: engine hours on the hour meter, load bank test results (request a recent test or arrange one), fuel system condition, AVR (automatic voltage regulator) functionality, and battery condition for auto-start systems.

Question 3

How long do diesel generators last?

Accepted Answer

Commercial diesel generators are typically rated for 15,000–30,000 hours of operation. With proper maintenance, many units exceed 50,000 hours. At 500 hours/year of standby use, a well-maintained generator can last 30–60 years.

Question 4

What is the difference between prime and standby rated power?

Accepted Answer

Prime power is the generator's continuous rating for main power supply. Standby power is a higher short-term rating for backup use (no more than 200 hours/year). Always use the prime rating for continuous or frequent use applications.

Buy & Sell
Power Generation Equipment

Power Generation Equipment

Buy & SellPower Generation Equipment

Power Generation Equipment

Buy & Sell
Power Generation Equipment