Commercial Solar Cleaning.
Custom Bid Within 24 Hours.
We clean commercial, agricultural, and government solar arrays across Southern Wisconsin. Every site is personally reviewed by our team — 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.
Portfolio-Grade Estimate · Commercial & Institutional
Model the annual production your building is bleeding to soiling.
Purpose-built for warehouses, plants, agricultural operations, campuses, and government facilities. Enter the array's scale, the mounting profile, and its cleaning history — get an NREL-grounded soiling-loss projection your facilities team can budget against. No lead capture, no per-panel rates published. When you're ready, one click carries your inputs into our 24-hour written-bid workflow.
Multi-building portfolio? Enter the combined module count across all sites — we'll break it out per address in the written bid.
The Wisconsin State Capitol's documented +16.7% production lift is a measured result from one real cleaning on that specific 16-year-old array. This estimator is an industry-average projection based on your inputs, not a promise about your facility's actual performance.
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
Case Study · Commercial (Flat-Roof)
The ballasted flat-roof job most cleaners quietly skip.
A small Southern Wisconsin business with a ballasted, gravel-set flat-roof array — the exact installation type most solar-cleaning outfits pass on because ballast blocks and frame clearance make brush access awkward. We took it. The proof came home on a fingertip.
Ballasted
Flat-roof, gravel-set — the harder access most crews skip
Manufacturer-approved
Pole-fed DI water + soft-rotary brush · zero foot traffic on glass
Sky-mirror clean
Every row, every panel — visible reflection restored across the whole array
One swipe. Every fingertip came back coated in the exact invisible film that had been silently eating this array's production every clear day.
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
Canopy & elevated arrays
serviced with rented lift equipment when reach demands it
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. Our team 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. Actively pursuing municipal and federal contract vehicles — SAM.gov registered and a Focus on Energy Trade Ally.
One Local Vendor
Madison/Beloit-based and we service all of Southern WI. 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.
Frequently asked by procurement
How quickly do you respond to bid requests?+
Do you provide COI and W-9?+
Net-30 invoicing?+
Do you handle 1,000+ panel arrays?+
Can you bid multi-site portfolios?+
How do I get a bid?+
Ready for your written bid?
One business day. Firm price. Scope of work. No call-around games. No high-pressure sales.
One-page overview procurement staff can forward internally — capabilities, insurance, contract vehicles, and the Capitol reference installation.
(608) 571-4173 · direct line to the owner-operator · not a service desk