Money Magazine's 2104 Winner of Best Place to live in America, is just 30 Miles from Downtown Dallas and is consistently recognized as one of the fastest growing cities in the US. Fortunately, all these new residents benefit from some of the lowest electricity prices in the US and Texas. The average rate for electricity in McKinney, Texas is 10.54¢. For our study, we reviewed McKinney Electricity rates that include the TDU / TDSP (Transmission and Distribution) charges from Oncor, which reflect the “All in” cost of electricity and makes it easy to compare electricity plans side by side.