Depending on utility, if RBG's metered with a meter that can do half hour, or hourly, or even 15 minute data (which would be abnormal for a residential meter), one could discern from their load profile whether there is activity within a household. Just saying, utilityfags in NY. Of course if it's a standard cumulative demand meter, it's a monthly data point. Still, worth a look, utilityfags.

Be a shame if RBG never registered for an online account, and someone took her account number for PEPCO and opened an account and decided to look at her load profile. https://www.pepco.com/MyAccount/MyBillUsage/Pages/MyUsage.aspx