State regulators launched an investigation this month into Xcel Energy’s preemptive outage that left tens of thousands of customers along the Front Range without power for days in early April. Xcel officials said the decision to cut off power was a precautionary measure taken primarily to avoid a situation similar to the Marshall Fire. That fire destroyed over 1,000 homes at the end of 2021 and was partiallycaused by an unmoored power line managed by Xcel.