Re: 218 million customers
218 million customers that has got to be nearly every utility customer and therefore the homes of nearly all the population of the USA.
According to the 2020 US census, as of 2019-07-01, there were 139,684,244 “housing units” (i.e. houses, condominiums, apartments/flats, &c., whether occupied or not) within the US, so there is certainly some overlap in those 218 million customer records (which are perhaps represented by tuples of person, service address, utility type, date range, so a single person at a particular service address during a specific date range could have multiple customer records — one for each relevant utility type).
Biting the hand that feeds IT
