High Utility bill

Just checked our utility bill and it was over $650. I know we had a few colder than usual days in January, but we used our fireplace as a main source to warm our home during that time and maintain a modest 68 degrees. We also just replaced our HVAC unit in 2023 and upgraded our roof/windows in 2024. I know that Feb is usually higher due to annual rate adjustments through Huntsville Utilities, but we usually pay $250 during the winter months. WKRN in Nashville just ran a story on their residents upset over utility prices where some are seeing $500+ bills and they are blaming it on a 5%+ increase in costs at TVA. Whatever the reason, be prepared for an unusual bill this month.