The answer to 'why is my generator power surge' is that a generator power surge is usually caused by an imbalance between the generator's power output and the electrical load it is trying to power. This can happen when the generator is overloaded or when there are sudden changes in the electrical demand.
Some common causes of generator power surges include: 1) Overloading the generator by running too many high-power appliances at once, 2) Rapid changes in electrical load, like when a large appliance like an air conditioner or refrigerator cycles on and off, 3) Faulty or malfunctioning generator components like the voltage regulator or governor, and 4) Electrical faults or short circuits in the generator or connected circuits.