Solar engineered to your bottom line.
Right-sized rooftop, ground-mount and canopy systems with the correct inverter topology, demand-charge modeling, stamped engineering and commercial monitoring — built and serviced by one local team.
Engineered to your building, not a template
Commercial solar isn't a bigger version of a home system — it's a different math problem. We start from your 12 months of energy and demand charges, your roof or land, structural capacity and utility rate, then engineer a system for the fastest, most durable payback. From a bank branch to a 99.9 kW AC public-building array, we right-size to the load rather than overbuilding.
Built for commercial roofs and loads.
The components and engineering behind a system that performs for 25+ years.
Rooftop, ground & canopy
Ballasted flat-roof racking (no membrane penetration), pitched-roof, ground-mount or carport canopy — matched to your site.
Right inverter topology
Commercial string or central inverters, with module-level optimizers where shading or multi-plane roofs call for it — engineered, not defaulted.
Demand-charge modeling
We model energy and demand savings, and where storage shaves peaks, we show solar-only vs. solar-plus-battery.
Commercial monitoring & reporting
System- and string-level production, alerts, and board-ready performance reports.
Flat roofs, done without wrecking your roof warranty
Most commercial roofs are single-ply membrane (TPO, PVC, EPDM). We typically use ballasted racking that weighs the array down without penetrating the membrane — the method that avoids roof-warranty conflicts — and we confirm structural capacity and remaining roof life before we design. If a re-roof is on the horizon, it's smart to coordinate the two; our roofing family (Three Rivers Contracting) makes that a one-call project.
The hidden bill: demand charges
Your commercial bill has two parts: the energy charge ($/kWh) for total use, and the demand charge ($/kW) based on your single highest 15–30 minute spike — often 30–60% of the bill. Solar takes a big bite out of energy charges. Cutting demand charges usually means pairing solar with a battery sized to your load curve, because peaks often land late in the afternoon as production drops. We pull your interval data and model both, so you invest based on your actual curve — not a brochure.
Engineered start to finish.
Assessment & modeling
We analyze 12 months of energy + demand data, your roof or land, and your goals.
Engineered proposal
Stamped design, honest production, demand-charge modeling, incentive capture and payback.
Permits & interconnection
We handle structural/electrical engineering, permits and the utility interconnection application.
Install, commission & monitor
Our crew builds it around your schedule, commissions it, and sets up monitoring and reporting.
Three Rivers Electric
Service upgrades, EV infrastructure or full commercial electrical? Our sister company handles it — coordinated with your solar.
What Minnesotans say.
Real reviews from real iSolar customers — homes, farms and businesses across Minnesota.
“Dan and company at iSolar were great to work with throughout our solar project. Communication was top-notch throughout the planning and install process, and even…”
“10stars!! I am a Sr. Project Manager for Patriot Homes, LLC (a general contractor) The solar panels of a customer of mine needed to be removed and reinstalled to…”
“iSolar installed 15 panels on our home, which has a standing seam metal roof. We have been very pleased with their approach, communication, price and the Solar…”
“Professional and very thorough in follow-up and responses. Their electricians takes time to explain things well and very honest in their pricing. I got an EV…”
“Jon and everyone over at ISolar have been awesome to work with on getting my panels installed and getting me through the different programs offered to me. Jon also…”
“Our experience has been wonderful! We are so happy we made the shift to solar and iSolar was so great to work with at all stages of the process!”
Frequently asked.
What kind of commercial systems do you install?
Rooftop arrays (flat membrane or pitched), ground-mounts, and carport/canopy-style structures — sized to your building's demand profile, roof or land, and utility rate. We've built everything from bank branches and studios to the 99.9 kW AC array at Edina City Hall.
Ballasted or penetrating mounts on a flat roof?
Usually ballasted — weighted racking that sits on the membrane without penetrating it, which avoids roof-warranty issues on TPO, PVC and EPDM roofs. Where wind or structure requires it, we use properly flashed mechanical attachments. We confirm structural capacity and remaining roof life first and coordinate with your roof warranty.
String inverters, central, or optimizers for commercial?
It depends on the array. Larger commercial systems often use commercial string inverters or a central inverter for cost-efficiency, frequently with module-level power electronics (optimizers) where shading, multiple roof planes, or panel-level monitoring justify them. We engineer the inverter topology to your specific roof and goals rather than forcing one approach.
Can solar reduce our demand charges?
Solar cuts your energy charges directly; trimming demand charges (the $/kW peak that can be 30–60% of a commercial bill) usually takes battery storage sized to your load curve, because peaks often hit late afternoon as solar tapers. We pull your interval data and model solar-only vs. solar-plus-storage so you can choose with real numbers.
Do you handle the structural and electrical engineering?
Yes — stamped structural and electrical engineering, permitting, and the utility interconnection application are all part of the project. We design to code and to your roof's real load capacity.
What monitoring and reporting do we get?
Commercial-grade monitoring with whole-system and string/panel-level production, automated alerts, and performance reporting you can hand to finance or your board — including production, consumption and (with storage) demand management.
Will the install disrupt operations?
No. We schedule around your hours, stage materials to keep access and egress clear, and our own licensed crew does the work start to finish — no subcontractor handoffs on your property.
How long does a commercial project take?
Typically a few weeks to a couple of months from signed proposal to power-on, depending on size, engineering, permitting and utility interconnection. We give you a realistic schedule up front and manage the paperwork.
Can a tax-exempt organization (school, nonprofit, city) still go solar?
Yes — via elective (“direct”) pay for the ITC value, or a power-purchase agreement where a third party owns the system and you buy cheaper power. Minnesota also runs Solar for Schools and public-building grant programs we help you pursue.
What backs the equipment long-term?
Tier-1 modules and quality inverters with manufacturer warranties, plus our own O&M and monitoring. We design for a 25–30 year service life and stay your local point of contact for it.
Commercial & ag solar across all of Minnesota.
Bigger projects justify the drive. Our commercial and agricultural crews install across the entire state — from the Twin Cities metro to greater Minnesota's farm country.
Model your building's system
Free commercial assessment with stamped-quality engineering and a real payback — energy and demand.