Wondering if that big old generator is worth a pile of cash or if it'll cost you more to move than it’s worth? This guide is here to help you estimate the value of a generator, from condition to age to brand. By understanding a few main factors, you’ll be able to get a good idea of the generator’s worth.

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Why Do Generators Vary So Much in Value?

Each generator has unique characteristics that affect its value, including condition, size, age, brand, and hours of use. Here’s a breakdown of each:

Condition: Does It Work?

• The Big Question: If it works, your generator has some value! If it doesn’t, the cost of disposal might even outweigh any potential resale.

• Factors That Matter: Has it been serviced regularly? Does it look like it’s been sitting outside for decades? Most buyers avoid generators with unknown repair needs because a costly fix could turn into a bottomless money pit.

• Quick Tip: A working generator that’s in decent shape can be sold much more easily, and often at a better price.

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Size: How Many Kilowatts (kW) Does It Have?

• Wattage to Size Guide:

  • <20 kW: Smaller units that typically don’t fetch a high price.

  • 20-100 kW: Medium-sized generators, often sought after.

  • 100-500 kW: Large generators that are ideal for commercial use.

  • 500 kW+: Extra-large generators, which can range up to tractor-trailer size.

• Why Size Matters: Larger power outputs translate to more demand and higher value. While this isn’t the only factor in determining worth, it can give a general sense of value.

Age: Newer Generators Hold More Value

• Age by EPA Standards: Generators manufactured after 2007 meet EPA Tier 4 emissions standards, making them eligible for use or resale in all 50 states.

• Older Units: Generators made before 2007 may be limited in where they can be used, especially in states with strict emissions regulations like California.

• What This Means for Value: A newer generator typically holds a much higher resale value than one from the 70s or 80s.

Brand: Some Names Bring Higher Value

• High-Value Brands: CAT generators lead the market, followed by reliable brands like Cummins, Kohler, and MTU.

• Lower-Value Brands: Katolite, Olympian, and Generac tend to fetch lower prices.

• Note: If you have a 50 kW CAT, it could very well be worth more than a 100 kW Generac. Brand reputation in this industry carries weight.

Hours Used: The Fewer, The Better

• Usage History Counts: Generators used sparingly for backup power are usually worth more than those run continuously.

• Usage Guide: Less than 100 hours is great; less than 2,000 hours is average; more than 20,000 hours is high.

• Bottom Line: Lower usage generally means longer lifespan, which means more value.

Additional Costs for Larger Generators: Disconnecting, Rigging, and Hauling

For larger, stationary generators, expect additional costs to disconnect, move, and haul, ranging from $1,000 to $2,000. Be sure to factor these costs into your final sale price.

Can I Use Online Listings to Estimate My Generator’s Value?

Checking online listings for comparable generators is a good start, but listings alone aren’t a perfect guide. Remember that an online price doesn’t mean the generator has sold – and market dynamics, buyer availability, and logistics all play a part in the final price.