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Proposal Request Received

One Last Step to Lock In
Your Commercial Solar Proposal

Your information is in. The fastest way to get your custom financial model — showing exact ITC credit, ESP payment, and 25-year savings — is to book a 20-minute strategy call with our Director of Development below.

Step 1 of 4 — Do This Now

Book Your 20-Minute Strategy Call

You'll speak directly with our Director of Development. On this call we'll confirm your property qualifies, run your estimated ITC credit and MACRS depreciation, and outline what your ESP payment vs. current utility bill looks like. No sales pressure, no obligation.

ITC credit estimate (30-50%)
ESP payment vs. utility bill
State incentives review
System size & roof suitability
Timeline to commissioning
Questions answered

What Happens Next

Your commercial solar proposal moves through four clear steps from this page to Permission to Operate. Here's the full picture.

Proposal Request Submitted
You've told us about your facility, electricity costs, and business type. Our Director of Development has been notified and is reviewing your information now.
Completed
2
Book Your Strategy Call — 20 Minutes
Use the calendar above to pick a time that works. On this call, our Director of Development will confirm property eligibility, walk through the ESP model and federal ITC calculation for your specific situation, and identify any applicable state incentives. We'll also confirm what we need from you to build the full financial model.
Book Above ↑
3
Upload Your Utility Bill
We need your most recent 12 months of electricity bills (or a single annual summary) to accurately size your system and calculate exact dollar savings. The more complete your billing history, the more precise your financial model. Upload securely using the link below — we'll confirm receipt by email within one business day.
Upload Utility Bill → [email protected]
4
Receive Your Custom Financial Model
Within 5-7 business days of your strategy call and utility bill receipt, we deliver a detailed financial proposal showing: system size and estimated production, exact ITC credit amount (30-50%), ESP monthly payment vs. current bill, state incentive stack (Illinois Shines SRECs, ComEd Smart Inverter Rebate, MACRS depreciation where applicable), year-by-year cash flow, and 25-year savings projection. No obligation to proceed.
5-7 Business Days
5
Installation by Solar One Illinois
If the numbers work for your business — and they usually do — Solar One Illinois manages permitting, interconnection, and installation. Projects typically take 5-8 months from signed agreement to Permission to Operate. You make zero upfront investment if you qualify for the ESP model.
After Proposal Approval

Upload Your Utility Bill Now

The more billing history you can share, the more accurate your financial model. 12 months of bills is ideal. You can email them directly to our Director of Development, or bring them to your strategy call. PDF or image format both work.

Email Bills to [email protected]

Or bring them to your strategy call — we'll walk through them together.

Completed Solar One Illinois Projects

641 kW commercial solar installation Arlington Toyota Palatine Illinois rooftop
✓ 641 kW — Arlington Toyota, Palatine IL
1.63 MW commercial solar rooftop Batavia Illinois plastics manufacturer
✓ 1.63 MW — Batavia Manufacturer, IL
500 kW apartment complex commercial solar Chicago metro Illinois
✓ 500 kW — Chicago Metro Apartments, IL
452 kW commercial solar Carol Stream Illinois packaging manufacturer
✓ 452 kW — Carol Stream Manufacturer, IL
⚡ Federal ITC 30–50%
💰 Zero Upfront Capital (ESP)
📋 NABCEP-Certified Design
✓ Illinois Shines Enrolled
🔒 Licensed & Insured EPC
★ 40+ IL Commercial Projects
Commercial-Solar.org
Solar One Illinois — Illinois EPC Partner
🕐 Mon–Fri  9:00am – 5:00pm
Book Your Strategy Call Pick a time — 20 minutes
Book Now ↑