Solar Module Prices Fell 16 Percent and Commercial System Prices Still Rose 5.6 Percent to $1.77 a Watt
- Analysis Capacity & Wholesale Markets Policy & Markets
Marin Holt
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- Commercial solar system prices rose 5.6 percent year over year to $1.77 per watt in Q2 2026
- Distributed-market module prices fell 16 percent to $0.37 per watt over the same period
- Residential was the only segment with a price decline, down 1.4 percent to $3.36 per watt
- Utility-scale fixed-tilt reached $0.95 per watt and single-axis tracking $1.06 per watt
- Freight and logistics costs rose about 15 percent across all segments
Solar modules got cheaper across the US market in the second quarter of 2026 and finished systems did not. Wood Mackenzie and the Solar Energy Industries Association put commercial system pricing at $1.77 per watt, up 5.6 percent against Q2 2025. That is the steepest rise of any segment. Module prices in the distributed market fell 16 percent over the same year to $0.37 per watt. The gap between those two numbers is the story in their US Solar Market Insight Q3 2026 report.
Residential was the only segment where the installed price fell. Turnkey residential systems averaged $3.36 per watt, down 1.4 percent year over year. Utility-scale fixed-tilt systems rose 0.9 percent to $0.95 per watt. Utility-scale single-axis tracking systems rose 2 percent to $1.06 per watt.
Where the module savings went
Hardware is no longer the line item that sets the price. pv magazine USA reports that rising structural, electrical and transport costs absorbed the module savings. Freight and logistics costs rose about 15 percent across all segments. Section 232 tariffs on aluminum, steel and copper keep racking, tracker and wiring costs high. Those duties reach domestic equipment makers too, because they buy imported raw metal.
Utility-scale modules tell a second story. They fell only 2 percent year over year, to $0.33 per watt, against the 16 percent drop in the distributed market. Developers are paying a premium for US-made modules to secure the federal domestic content adder and to keep trade enforcement away from their pipelines. The premium is a deliberate purchase, not a supply failure.
Why It Matters
A developer modelling next year on falling module prices will miss the number. Module cost is now a minority of installed cost in every segment, and the balance-of-plant items that replaced it track metals tariffs and fuel prices rather than panel supply. Those inputs do not fall on the same schedule as a module price sheet.
The commercial segment carries the sharpest exposure at 5.6 percent annual inflation. Commercial solar is sold on a payback period computed at signing. A project priced against last year’s system cost and financed on that basis loses margin before construction starts.
The residential decline deserves less celebration than it reads. Residential system pricing sits at $3.36 per watt, more than three times the utility fixed-tilt figure of $0.95. A 1.4 percent decline off the highest base in the market is a small move on a large number.
The figures in one place
| Segment | Q2 2026 price | Year-over-year |
|---|---|---|
| Residential turnkey | $3.36 per watt | down 1.4 percent |
| Commercial | $1.77 per watt | up 5.6 percent |
| Utility-scale, single-axis tracking | $1.06 per watt | up 2.0 percent |
| Utility-scale, fixed-tilt | $0.95 per watt | up 0.9 percent |
| Modules, distributed market | $0.37 per watt | down 16 percent |
| Modules, utility-scale | $0.33 per watt | down 2 percent |
Critical Perspective
These are national averages from a single modelling house, and the spread inside each segment is wider than the year-over-year moves being reported. A 0.9 percent rise in utility fixed-tilt pricing is well inside the range that site conditions, labour markets and interconnection scope produce between two projects in the same state. Wood Mackenzie builds the figure from a bottom-up cost model rather than from a census of signed contracts. Treat the direction as the finding and the decimal as an estimate.
The tariff attribution also deserves care. Section 232 duties on aluminium, steel and copper are a plausible driver of higher racking and wiring costs, and the report names them. Freight rose about 15 percent over the same period. Both moved at once, so the reported split between them is a modelling judgment rather than an observation. A reader who needs to know which input to hedge will not get that answer from this data.
One figure is missing from the coverage entirely. Nobody publishes what the domestic content adder is actually worth against the premium developers pay for US-made modules, and that trade is the reason utility-scale module prices fell 2 percent while distributed modules fell 16 percent. Without it, the claim that the premium is a deliberate purchase stays an inference drawn from the price gap rather than a documented calculation.
