âA cleaner future.â Officials break ground on Cincinnatiâs massive new solar array project The facility is expected to generate enough electricity to power 100 percent of Cincinnatiâs electricity consumption for all city-owned and operated services. Cincinnati and energy company officials break ground on a new solar array in Highland County, May 13, 2021. (Source: Briana Rice/Enquirer) By Briana Rice | May 13, 2021 at 8:37 PM EDT - Updated May 13 at 8:43 PM CINCINNATI (Enquirer) - In an open field in Highland County, typically used for soybean and corn, Cincinnati leaders and partners broke ground on what officials are calling the largest municipal solar array in the country, according to our media partners at the Enquirer.