Solar Thermal Cost in Wisconsin in 2026
Most Solar Thermal projects in Wisconsin cost between $4,900 and $9,500. The typical price is $6,500.
Solar thermal serves hot water rather than the whole electrical load, so systems are smaller.
Wisconsin prices track the national average closely. Costs here are close enough to the national picture that the adjustment barely moves the number.
What drives the price
- Panel efficiency and inverter type
- Roof complexity and mounting hardware
- Main panel upgrade if the busbar cannot take the backfeed
- Battery storage, which is priced separately
Usually included
- Panels, inverters and racking
- Design, permitting and interconnection
- Installation and commissioning
Usually extra
- Battery storage
- Roof repair or replacement before install
- Utility interconnection fees in some territories
Unit prices in Wisconsin
| Quality tier | Cost per watt |
|---|---|
| Budget | $1.22 |
| Mid-range | $1.67 |
| High-end | $2.34 |