The Solar & Battery Storage Facility, a 150 MW / 300 MWh project we are delivering as EPC contractor for a confidential owner, has reached mechanical completion. The arrays are built, the battery yard is set and the plant has moved into commissioning, the last phase before commercial operation.
Two plants on one site
This project is really two facilities that have to behave as one. The solar arrays generate through the day. The battery yard stores the afternoon peak and sends it back to the grid after sunset. Each has its own construction rhythm, its own long-lead equipment and its own testing, but both share a point of interconnection and a single control system.
The arrays were built like a production line. Piling, tracker assembly, module installation and electrical crews moved across the site in sequenced blocks, each crew handing a finished block to the next. Quality checks happened in the block, before turnover, so defects were fixed where they were found rather than stored up for the end.
The battery yard ran on a separate critical path tied to equipment delivery. Foundations, conduit and grounding were complete before the enclosures arrived, so setting, cabling and termination could move quickly once they did.
What mechanical completion means
Mechanical completion is the moment the plant is physically built and ready to be tested as a system. Every pile is driven, every tracker row aligned, every string landed, every battery enclosure set and terminated, and the medium-voltage collection system is ready for energization.
Commissioning now underway
Over the coming weeks, our commissioning team will work with the owner and the interconnecting utility to:
- Energize the arrays block by block and verify inverter output against design.
- Test tracker controls across every row, including high-wind stow.
- Commission the battery system through charge and discharge cycles.
- Verify protection settings and coordination with the utility.
- Bring the plant controller and monitoring online for the owner's operators.
Solar is repetition and storage is precision. The schedule had to respect both, and the controls had to make them work as one plant.
Project manager, GilbertLanham
Our thanks go to the owner, the design team, our trade partners and every craft professional on site. If you are planning generation, storage or both, we would like to talk about how we sequence them to reach commercial operation on your date.
