Denso’s Tennessee plants to run on four new Silicon Ranch arrays

• Silicon Ranch will build four PV facilities to supply Denso’s manufacturing operations in Tennessee under a long-term clean power deal.

Japanese automotive supplier Denso is deepening its U.S. decarbonization with a new solar supply deal in Tennessee. Silicon Ranch, the Nashville-based developer and independent power producer, will build four photovoltaic plants dedicated to powering Denso’s manufacturing footprint in the state. The partnership advances Denso’s corporate sustainability goals while giving the company long-term price visibility on a slice of its electricity needs.

C&I buyers are increasingly opting for bespoke solar portfolios sized to specific factory loads, often co-located near substations to minimize congestion risk and losses. For developers, multi-site deals with a single creditworthy offtaker allow standardized designs, repeatable construction, and efficient O&M, which in turn lower levelized costs. Tennessee’s growing manufacturing base and supportive interconnection environment have made it a bright spot for such arrangements.

Expect the projects to feature single-axis trackers and high-efficiency modules tuned for local conditions, with plant-level controls capable of voltage support and fast curtailment response when the grid requires it. While neither party disclosed capacity, deals of this type typically scale to tens of megawatts across sites—large enough to matter for emissions and costs, small enough to slot into existing grid headroom.

With corporate demand rising from autos to data centers, Silicon Ranch’s latest win signals continued appetite for clean, contracted power—even amid broader policy uncertainty.