John Mills Electric, Inc.

John Mills Electric, Inc., headquartered in Elmira Heights with an office in Ithaca, New York, is a leading full-service electrical contracting company specializing in solar energy solutions across the Twin Tier region of New York State and Northern Pennsylvania. Founded in 1978, they have built a reputation for quality-focused work serving commercial, industrial, municipal—and through their subsidiary Twin Tier Solar—residential clients as well.
The company has installed over 110MW of solar capacity to date, supporting projects ranging from small businesses to large-scale community solar farms. Their services include complete photovoltaic system design/build/installations as well as ongoing operations and maintenance for utility-scale arrays. All PV installations are supervised by NABCEP-certified personnel, ensuring adherence to industry best practices.
John Mills Electric has been recognized multiple times on Solar Power World’s Top Solar Contractors List, reflecting its leadership within the regional renewable energy sector. In addition to solar expertise, they offer comprehensive electrical contracting services—lighting systems installation/maintenance; generator setup; wiring upgrades; surge protection; troubleshooting—for residential through Fortune 500 clients.
Their commitment extends beyond technical excellence: they emphasize safety (with NECA Safety Excellence Awards), local sourcing where possible, customer satisfaction guarantees/warranties on select services, and active participation in community initiatives.