carrier hotel(It's known in the industry as a "carrier hotel," a moniker given only to the most interconnected downtown data centers, those that serve as the center of connectivity for that region. At least one carrier hotel can be found in every major city across the country. rackspace.comAlexander Demidov)
electricity meter(a device which measures how much electricity has been used in a property: Somebody came to read the electricity meter. There is an electricity meter that gobbles coins, but since I moved in it has been starving. collinsdictionary.com)