It's correct that you're trying to preserve money, but replacing will likely be a good suggestion in the end. You may anticipate that your bills will go down as the new designs do not up a lot of energy.
You must also know how you can your home appliances properly. They are the primary aspects in the increase in your monthly bills. You should start replacing your old appliances and buy new models. The old appliances are generally inefficient and they more energy so buying a new one will be beneficial. New models up less energy and they are more efficient compared to old designs. It is also important to unplug your appliances if you are not using them as they will still up energy when they're turned off and you leave them plugged on the outlet.