Looking for ways to save energy? Ameren Missouri offers several great money saving tips at ActOnEnergy.com! Just a couple of their tips: 1) Turn down the temperature on your water heater to 120 degrees. Hot water accounts for nearly 25% of an average energy bill. 2)Plug your TV, DVD, DVR and other electronics into a smart plug to eliminate vampire power—which is energy electronic equipment uses, even when its turned off. This could save you around $100 a year.