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COMMUNITY PORTFOLIO

Rock Lake Solar

Jefferson County

SPECIFICATIONS

LOCATION

Waterloo, WI

CLIENT

OneEnergy Renewables

ENGINEER/ARCHITECT

OneEnergy Renewables

SIZE

5.7 MWDC

The Rock Lake Solar project is a 5.7 MWDC utility scale installation located in Waterloo, Wisconsin and developed by OneEnergy Renewables. Westphal & Company delivered the full construction scope for the site, beginning with civil site work and trenching to prepare the array for pile installation and structural foundations. The project occupies a highly visible location just north of Interstate 94, near the Lake Mills exit, making it a prominent example of regional clean energy development.

Once piles and racking foundations were in place, Westphal crews installed the solar modules, completed DC string wiring and made final electrical connections at the inverter pads and utility transformer locations. All circuits were tested and documented, with QA/QC processes carried throughout construction to support system reliability and long-term performance.

Key Project Highlights

  • 5.7 MWDC utility scale solar array in Waterloo, Wisconsin
  • Civil work and trenching completed prior to pile installation
  • Full module installation and DC string wiring
  • Final terminations at inverters and transformer pads
  • Comprehensive circuit testing and QA/QC during installation
  • High-visibility installation along Interstate 94