But you pay $100 a month just for the ability to use the gas that you will then pay for. If you want fossil redundancy then go with a propane generator, sits on property as energy storage, available for use when needed. You’re also in at a relatively decent price, for a backup system. That coupled with batteries and you eliminate that Distribution cost double up by having to be served by two utilities. Payback is under 2-5 years for that backup, when you account for the distribution cost elimination