Continuous-Duty Generator Financing

Continuous-duty is the hardest rating a generator earns. It means constant load, unlimited hours, no planned rest cycle. Where prime-rated equipment tolerates occasional 100 percent load transients, continuous-duty sets are sized and built assuming full-load operation around the clock for years at a time. The engine, cooling system, lubrication circuit, and controls are all specified for thermal equilibrium under sustained load, not for the episodic demand of standby service or the moderate-duty cycling of prime applications.

True continuous-duty generators are a narrow segment of the market. They're found on offshore platforms that have no other source of electricity, at remote industrial processing facilities with 24/7 operations, and in CHP (combined heat and power) installations where the generator runs continuously to supply both electric power and thermal energy. If you're buying equipment in this category, you already know the application. The question is how to finance it without eating through working capital or waiting 90 days for a bank to understand the project.

We fund continuous-duty gensets from $50,000 up. Diesel, natural gas, or dual-fuel configurations all qualify. Remote locations are not an obstacle. B and C credit are considered. Deals typically fund in one to two weeks once a complete file is submitted.

The distinction between prime and continuous ratings lies in the load profile and the intended operating window. An ISO-rated continuous-duty generator must sustain its rated output with no time limit and no load relief. To achieve this, OEMs typically derate the engine to 70 to 80 percent of its absolute maximum capability, leaving thermal and mechanical margin for indefinite operation. A Cummins QSK60 rated at 1,500 kW prime might carry a 1,200 kW continuous-duty rating; the engine physically produces more power, but sustained reliability requires operating below that ceiling.

Maintenance intervals on continuous-duty sets are the most aggressive in the generator market. Oil analysis, coolant chemistry, injector condition, and valve clearances all need monitoring on a compressed schedule when a set is running 8,000 to 8,760 hours per year. Budget for major maintenance at engine-manufacturer recommended intervals, which on large diesel sets typically means top-end overhaul at 20,000 hours and major overhaul at 40,000 hours. For financing purposes, a set's hours on the clock and documented maintenance history are more important than calendar age.

Cooling capacity is a constraint often overlooked in the purchase decision. A continuous-duty set running at full load generates heat equivalent to its fuel consumption minus its electrical output. That's a lot of heat, and the radiator, intercooler, and coolant circuit must be sized for the worst ambient conditions on your site. Undersized cooling is the most common cause of premature continuous-duty failures. We finance the complete system, generator plus cooling package, when it's part of a single purchase.

For very large continuous-duty installations, you'll be looking at the same platforms as prime power: Caterpillar G3500/G3600 and 3516 series, Cummins QSK and C-series at the top of their ranges, MTU Series 4000, and Jenbacher units for gas applications. These are machines that will run for 20 years with proper maintenance.

Continuous-duty generators represent some of the most valuable generator assets in the resale market, precisely because well-maintained units in this category hold value at high hours. A 1,000 kW Caterpillar 3516 in continuous-duty service with documented maintenance and a recent major overhaul carries substantial market value regardless of calendar age. If you own one of these sets free and clear, a sale-leaseback can convert that equity into working capital while the generator continues to operate exactly as it has been.

The sale-leaseback structure is particularly useful for operators who acquired continuous-duty equipment through a project purchase and have paid it off over the first several years of operation. At the payoff point, the business is cash-flowing from the generator's output but has locked up equity in an asset that could be redeployed as capital. We appraise the set, fund 70 to 85 percent of appraised value, and structure a lease-back that the equipment's revenue can service.

Cash-out refinancing works for sets that still have a lien against them. We pay off the existing lender, rebook the deal at current terms, and in many cases advance additional funds when the equipment's value exceeds the existing loan balance. Operators who financed a set at high interest rates two to three years ago and have since improved their credit profile often benefit from this structure. See our page on generator equipment refinancing for full details.

Most continuous-duty genset purchases fall above our $400,000 application-only threshold. At that level, we require two years of business tax returns, a current balance sheet, and a profit and loss statement. This is still faster than a bank: a typical two-to-three-week timeline from full package submission to funding approval, vs. 60 to 90 days for a commercial bank loan.

For continuous-duty equipment specifically, we also want the maintenance log or engine service history when buying used. A detailed service log dramatically strengthens the deal by demonstrating that the set has been properly maintained and is likely to remain reliable. OEM-serviced equipment with digital maintenance records is the easiest to place.

New continuous-duty sets from a dealer come with factory warranty and OEM service agreements that can be structured as part of the overall financing. Some OEM service contracts are financeable alongside the equipment; ask the dealer whether their service agreement qualifies. We can bundle OEM-backed maintenance contracts into the same deal for qualified buyers.

Operators in the utility and power sector who are buying continuous-duty sets as part of a microgrid or distributed generation project may also qualify for alternative financing structures through utility incentive programs. We can work alongside those incentives to structure the equipment note in a way that accommodates timing of utility payments.

Tell us the kW rating, fuel type, operating hours expectation, new or used, and your timeline. We'll quote the same business day. No location restriction, B and C credit considered.