Commercial Solar Cleaning.
Custom Bid Within 24 Hours.
We clean commercial, agricultural, and government solar arrays across Southern Wisconsin and Northern Illinois. Every site is reviewed personally by Marquis Mason — a written bid with firm price and scope of work hits your inbox within one business day.
24-Hour Bid
One business day
Net-30
Invoicing standard
COI · W-9
On request
Multi-Site
Contracts available
Soiling is costing you money right now
Commercial arrays lose 5–15% of production to soiling
That's $550–$8,400/yr on a 200–1,000 panel facility — $8K–$23K/yr on a 1 MW system. NREL field data shows a US median ~5% loss with up to 15%+ in agricultural and industrial zones. One cleaning recovers a year's worth of losses on day one.
200-Panel Site
~$550–$1,700/yr
lost to soiling
1,000-Panel Site
~$2,800–$8,400/yr
lost to soiling
1 MW Facility
~$8K–$23K/yr
lost to soiling
Math: panels × ~430 kWh/yr (NREL PVWatts, Madison WI) × $0.131/kWh (EIA WI commercial avg) × 5–15% soiling loss (NREL 2024 Soiling Study, IEA-PVPS). All figures conservative.
Case Study · Government
Wisconsin State Capitol — +16.7% production lift
We restored production on the Capitol's 16-year-old rooftop array using the same warranty-safe pole-fed deionized water rig + soft-rotary brush we'd use on your facility. No foot traffic on glass. No harsh chemicals. Before-and-after monitoring confirmed a measured +16.7% efficiency jump in a single visit.
16 yrs
Array age at time of cleaning
+16.7%
Measured production lift
1 visit
To recover years of soiling loss
Who we serve
Commercial Facilities
Manufacturing, warehousing, retail
Agricultural Operations
Farms, dairies, ag-co-op solar
Government Sites
Municipal, state, federal arrays
Multi-Site Portfolios
Property managers, PPA operators
What every bid includes
No surprise line items. No call-around games. Every Solar Alchemist commercial bid puts a real number, in writing, with the same standard scope of work.
Site walk & verified panel count
before the number is set
Soft-rotary brush + 100% deionized water
warranty-safe across 15+ manufacturers
Biodegradable, surfactant-free soap
zero harsh chemicals, no residue
Before / after photo documentation
for every visit, every site
Annual & bi-annual maintenance options
priced alongside the one-time bid
Net-30 invoicing
on commercial accounts
COI & W-9 documentation
on request, every time
Multi-site contract structuring
matched to your AP cycle
Why facility managers choose Solar Alchemist
Warranty-Safe Methods
Manufacturer-approved cleaning across 15+ panel makers — Tesla, SunPower, LG, LONGi, JinkoSolar, and more. We follow each maker's published guidelines so your asset stays warranty-compliant.
Same Hands Every Visit
Owner-operated. Marquis personally reviews every bid, quotes every facility, and shows up to every cleaning. No subcontractors, no rotating crews, no compounding miscommunication.
Ground-Fed DI Rig
No foot traffic on your glass. Pole-fed soft-rotary brush + 100% deionized water = spot-free finish, zero scratches, zero microfracture risk.
Procurement-Friendly
COI, W-9, MSA support, Net-30 invoicing, references on request. We do business the way procurement asks us to.
One Local Vendor
Madison/Beloit-based and we service all of Southern WI + Northern IL. One COI, one W-9, one phone number across every site in your portfolio.
Honest ROI
We won't overpromise. Our numbers cite NREL + manufacturer studies. The Capitol's +16.7% is documented — we'd rather lose a bid than oversell.