Lighting that pays for itself.
An LED retrofit is usually the fastest-payback energy upgrade a Minnesota business can make — 60–75% less lighting energy, 1–3 year payback, and far lower maintenance. Then we stack it with solar and storage for the lowest possible bill.
Your lights may be your biggest controllable cost
In most commercial buildings, lighting runs long hours and quietly drives a big share of the electric bill. Swapping aging fluorescent, metal-halide or HID fixtures for modern LED — with the right controls — typically cuts lighting energy 60–75% and maintenance 80–90% (no more chasing ballasts and lamps). Payback usually lands in 1–3 years, faster than almost anything else you can do to the building, and Minnesota utility rebates plus the federal 179D deduction can shorten it further.
Where LED retrofits pay off fastest.
The longer your lights run, the bigger and quicker the return.
Corporate offices
Open offices, conferencing and common areas — with daylight and occupancy controls a 50,000 sq ft office can cut lighting energy ~65%.
Warehouses & industrial
High-bay LED for tall spaces cuts energy 60–72% and runs cooler, easing your cooling load too.
Retail stores
Brighter, truer light that sells product — while cutting lighting cost up to ~70%.
Schools & public buildings
Lower operating costs for districts and cities, with controls that match real occupancy.
The savings come from the whole package
- Efficient LED fixtures & retrofit kits — the right product for offices, warehouses, retail and exterior.
- High-bay fixtures for tall warehouse and shop ceilings.
- Lighting controls — occupancy sensors, daylight harvesting, scheduling and dimming so lights are only on when and where they're needed.
- Exterior & parking — safer, lower-cost, longer-life site lighting.
Our sister company Three Rivers Electric — licensed Minnesota electricians — does the lighting and electrical work, coordinated with your solar so it's one project.
Stack the savings: lighting + solar + peak shaving
Cut the load with LED, generate the rest with solar, and shave your demand charges with a battery. Together they drive the lowest possible commercial bill — and lighting's fast payback helps fund the rest.
- LED retrofit: 60–75% less lighting energy, 1–3 yr payback
- Utility rebates + federal 179D deduction (up to ~$5/sq ft)
- Solar: 30% ITC + depreciation (time-limited to 2026)
- Battery peak shaving: cut demand charges 30–60%

Three Rivers Electric
Commercial lighting, controls, service upgrades and EV infrastructure — the licensed electrical side of your energy project.
Total energy savings, one family.
Solar is the headline, but the biggest savings come from attacking the whole building. Between iSolar, Three Rivers Electric and Three Rivers Contracting, one family handles every lever.
Solar + storage
Generate your own power and shave demand charges with battery peak shaving.
Commercial solar →LED lighting retrofit
Cut lighting energy 60–75% — often the fastest-payback upgrade in the building.
Commercial lighting →Electrical & EV
Service upgrades, controls and EV charging by licensed electricians.
Three Rivers Electric →Roofing, insulation & envelope
Re-roofs, insulation, windows and mini-split heat pumps from our construction family.
Three Rivers Contracting →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.
How much can an LED retrofit save?
A commercial LED retrofit typically cuts lighting energy 60–75%. A 50,000 sq ft office that retrofits can see lighting energy drop ~65% (often $15,000–$20,000+ a year), and warehouses with high-bay fixtures routinely cut lighting use 60–72%. On top of that, LED maintenance costs usually fall 80–90% because you stop replacing lamps and ballasts.
What's the payback?
Most commercial LED retrofits pay back in 1–3 years — faster than almost any other building upgrade — and utility rebates (often 20–40% of the project cost) plus the federal 179D deduction can shorten it further.
Which buildings benefit most?
Anywhere the lights run long hours: offices, warehouses and distribution centers, retail stores, schools and public buildings, clinics, parking structures and exterior/security lighting. The more hours your lights are on, the bigger and faster the return.
Is it just swapping bulbs?
No — the savings come from the full package: efficient LED fixtures or retrofit kits, high-bay fixtures for tall spaces, and lighting controls (occupancy sensors, daylight harvesting, scheduling and dimming) that make sure lights are only on when and where they're needed.
Are there rebates in Minnesota?
Yes — Xcel Energy and many Minnesota utilities offer commercial lighting rebates, and qualifying projects can earn a federal 179D tax deduction (up to ~$5/sq ft) for exceeding energy-code baselines. We help you capture them.
Who does the electrical work?
Our sister company Three Rivers Electric — licensed electricians — handles the lighting and electrical install, coordinated with your solar and any panel upgrades so it's one project, one schedule.
How does this pair with solar?
Perfectly. Cutting your lighting load first means you need less solar to offset the rest, and pairing solar with a battery lets you shave demand charges too — lighting, generation and peak management together drive the lowest possible bill.
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.
Cut your building's energy bill
Free commercial energy assessment — lighting, solar and peak shaving modeled together for the fastest payback.
