Load Bank Testing

A generator that starts doesn't necessarily mean a generator that performs. Many generator failures happen under load — when the system is asked to deliver its rated capacity during a real outage. Load bank testing is the only way to verify that your generator can actually produce its full rated power output and sustain it reliably.

Ontario Generator Systems provides professional resistive and reactive load bank testing for both residential and commercial generators. Our portable load bank equipment connects directly to your generator and applies a controlled, incremental electrical load up to and including 100% of rated capacity. This process verifies engine performance, voltage regulation, frequency stability, cooling system adequacy, and fuel system delivery under real-world conditions.

Load bank testing is particularly important for standby generators that run infrequently. Engines that sit idle can develop wet stacking (unburned fuel buildup), glazed cylinder walls, and carbon deposits that only manifest under heavy load. Regular load bank testing burns off these deposits, exercises the engine at operating temperature, and provides documented proof of performance for insurance and regulatory compliance requirements.