Rochester Gas and Electric and NYSEG say they are ready to deliver power to customers despite a very warm spring and last week's preview of what may be a sizzling summer. The utility companies say they work hard before the high-demand summer months to ensure their systems are in good working order and ready to meet summer power needs. The power companies say they work to keep trees away from power lines, and they also do helicopter patrols of key facilities. NYSEG and RG & E say they always encourage customers to use energy wisely. That includes closing windows and doors during the hottest parts of the day to keep heat out. They say you should use fans instead of air conditioners. Also NYSEG and RG & E say you should turn off unused lights, TV's, computers, and other electronic equipment.