- Serving Homes & Businesses Across Illinois
Master Electrician-Led Solar & Electrical Excellence for Illinois
Lehmann Electrical provides end-to-end solar installation, electrical services, and energy storage solutions for Illinois homeowners and businesses. From residential solar to commercial EV charging, we design systems for maximum performance, safety, and ROI. All installations by in-house Master Electricians, never subcontractors.
- In-house Master Electricians
- NABCEP certified
- Illinois Shines Approved Vendor
(847) 257-2609
IL Licensed Contractor
Licensed electrical contractor
NABCEP Certified
Certified solar professionals
500+ 5-Star Reviews
Verified customer reviews
BBB A+ Rated
Better Business Bureau
Comprehensive Services for Illinois Homes & Businesses
Complete home services: installation, inspection, repair & battery storage, optimized for performance.
Talk to our team about your Illinois solar or electrical project.
414-404-6900
Residential Solar SolutionsResidential Solar Solutions
Designed and installed by our in-house Master Electricians, never subcontractors.
Home Solar Installation
Custom rooftop or ground-mount systems optimized for your home's energy needs, roof conditions, and financial goals.
- NABCEP-certified system design
- Tier-1 premium panels & equipment
- In-house Master Electrician installation
- Complete permitting & utility coordination
- Structural analysis & code compliance
- 10-15 year equipment + 1-year workmanship warranty
Battery Storage (Tesla Powerwall)
Pair solar with battery storage to capture excess generation, power nighttime usage, and provide backup during outages.
- 13.5 kWh usable capacity per unit
- Stackable for larger homes (27 kWh, 40.5 kWh+)
- Automatic outage detection (-200ms switching)
- Mobile app monitoring & control
- Compatible with existing or new solar
- 30% Federal tax credit eligible
Solar Panel Maintenance & Cleaning
Dust, pollen, and debris reduce efficiency by 5-25%. Professional cleaning restores peak performance.
- Professional cleaning (deionized water method)
- Efficiency diagnostics & reports
- Wiring & safety inspections
- Recommended 1-2 times annually
- Typically pays for itself in 3-6 months
Solar Inspection & Diagnostics
Comprehensive system health checks diagnose performance issues, verify safety, and ensure peak efficiency.
- On-site electrical testing (DC/AC)
- Thermal imaging for hot spots
- Production vs. predicted output analysis
- Inverter & component inspection
- Safety compliance verification
- Detailed diagnostic report
Commercial Solar SolutionsCommercial Solar Solutions
Designed and installed by our in-house Master Electricians, never subcontractors.
Manufacturing & Warehouses
Offset high energy consumption, reduce peak demand charges, and add solar-powered EV fleet charging.
- Utility-scale rooftop systems
- High-efficiency Tier-1 equipment
- Demand charge reduction
- EV charging integration
- 30% Federal ITC + MACRS depreciation
Healthcare & Hospitals
Lower 24/7 operations costs, reduce power-intensive medical equipment consumption, ensure energy resilience.
- Continuous operation support
- Battery backup for critical systems
- Energy audit optimization
- Reduced operational overhead
- Sustainability reporting (ESG)
Retail & Office
Reduce CAM charges for tenants, improve property NOI, attract ESG-focused businesses, increase property value.
- Rooftop or canopy systems
- Tenant bill credits
- CAM reduction
- NOI improvement
- ESG/sustainability marketing
Agriculture & Cold Storage
Power irrigation, refrigeration, equipment charging with fixed energy costs. Lock in predictable operating expenses.
- Pump & irrigation power
- Cold storage climate control
- Equipment charging stations
- Seasonal load management
- Federal agricultural incentives
Electrical ServicesElectrical Services
Designed and installed by our in-house Master Electricians, never subcontractors.
Electrical Panel Upgrades
Upgrade main electrical panels to safely support solar installations, EV chargers, heat pumps, and high-demand appliances.
- 100A to 200A+ upgrades
- Full load analysis
- Utility coordination & approval
- NEC & Illinois code compliance
- Installed by licensed Master Electricians
EV Charger Installation (Level 2)
Professional 240V Level 2 home EV charger installation for fast, reliable charging. Works with all EV makes/models.
- 240V Level 2 chargers (7.2–19.2 kW)
- Dedicated circuit installation
- Smart charging capability
- 30% Federal tax credit eligible
- Panel upgrade (if required) included
Complete Home Rewiring
Update outdated electrical systems to modern standards for safety, capacity, and code compliance.
- Full home rewiring
- Knob & tube removal & replacement
- Updated grounding & bonding
- New outlets/switches throughout
- Code compliance verification
Troubleshooting & Repair
Diagnose and fix electrical issues quickly: flickering lights, tripped breakers, non-functional outlets, and safety hazards.
- Diagnostic service calls
- Wiring & connection repairs
- Safety inspections
- Code compliance verification
- Emergency service available
Energy StorageEnergy Storage
Designed and installed by our in-house Master Electricians, never subcontractors.
Tesla Powerwall Installation
13.5 kWh battery storage with automatic outage detection, mobile app control, and stackable for larger homes.
- 13.5 kWh usable capacity per unit
- 5 kW continuous / 10 kW peak output
- Stackable for 27 kWh, 40.5 kWh+ systems
- ~200ms automatic switching to backup
- Mobile app monitoring & scheduling
- 10-year unlimited-cycle warranty
Peak Demand Saving
Use stored solar energy during peak-rate hours (typically 2–8pm) to avoid high utility demand charges that can add $50–$200/month.
- Automatic time-of-use optimization
- Reduces peak demand charges
- Battery charges during off-peak hours
- Discharges during peak rates
- Payback: 8–12 years
Microgrid Design
Custom microgrid systems combining solar, battery, and load management for maximum energy independence and resilience.
- Solar + battery integration
- Load management & prioritization
- EV charger integration
- Heat pump optimization
- 24/7 energy monitoring
Backup Power During Outages
13.5 kWh Powerwall provides ~12 hours of backup power for essential loads: refrigeration, heating, internet, lights, medical equipment.
- ~12 hours essential load backup
- Automatic outage detection
- No manual switching required
- Stackable for longer backup
- Critical load panel design
EV ChargerEV Charger
Designed and installed by our in-house Master Electricians, never subcontractors.
Level 2 Home Charger (240V)
Hardwired 240V Level 2 chargers deliver 30–50 miles of range per hour, perfect for overnight charging and daily use.
- 7.2–19.2 kW charging power
- 30–50 miles range per hour
- Works with all EV makes/models
- Smart charging scheduling
- 30% Federal tax credit eligible
Solar-Powered EV Charging
Pair solar panels with Level 2 charging to generate your own EV fuel at near-zero cost after system pays off.
- Solar generation matches charging needs
- Time-of-use optimization (charge at peak solar)
- Battery storage for flex charging
- Eliminates gas costs forever
- Reduces carbon footprint 100%
Commercial EV Fleet Charging
Multi-charger installations for businesses with EV fleets. Solar + battery integration optimizes charging economics.
- Multi-charger infrastructure
- Fast charging (30–80 kW options)
- Load management & scheduling
- Solar generation optimization
- Fleet management integration
Charging Cost Analysis
Understand your EV charging costs and savings. Compare public charging vs. home charging vs. solar-powered charging.
- Cost per kWh analysis
- Payback period calculation
- Solar integration ROI
- Incentive identification
- Financing options
Illinois Expertise You Can Trust
With deep roots in Illinois, our certified electricians bring trusted local expertise, ensuring every installation meets state standards and delivers reliable, long-term energy performance for your home.
Licensed Illinois Professionals
Our team holds the required Illinois electrical licenses and top-tier NABCEP solar certifications. Every installation is guaranteed to meet National Electrical Code (NEC) and all local requirements.
Full-Service Permitting & Inspection
We manage the entire permitting process on your behalf. Our specialists coordinate directly with Illinois municipalities and utility companies to ensure your project is fully inspected and approved.
Transparent State-Required Disclosures
You receive a detailed written estimate before work begins. For all solar projects, we provide the official Illinois Shines Standard Disclosure Form prior to any contract, so you have all the required information upfront.
Illinois Utility Expertise
We have extensive experience navigating the interconnection process with Illinois utilities, including ComEd and Ameren. We handle all required applications to get your system connected to the grid seamlessly.
ComEd and Ameren interconnection handled
NABCEP
Certified pros
500+
5-star Google reviews
A+
BBB rating
Why Choose Lehmann Electrical
Transparent pricing, Master Electrician expertise, and a commitment to regulatory compliance set us apart.
Our installation crew consists of in-house NABCEP-certified Master Electricians, no subcontractors, no shortcuts.
Officially approved Illinois Shines vendor with expertise in program enrollment, REC sales, and Standard Disclosure Forms.
Honest payback estimates (12-18 years), qualified savings claims, and full disclosure of incentives and limitations.
BBB A+ rating and 500+ verified five-star reviews from satisfied residential and commercial clients across Illinois and Wisconsin.
An Electrical & Structural Engineering Approach
Master Electrician expertise. Proven track record. Transparent compliance.
Turnkey Project Management
Your project is led by a NABCEP-certified professional from design to commissioning. No subcontractors, no surprises, just a single point of expert accountability.
Uncompromising Electrical Safety
Every component, from PV wiring to main panel integration, is installed by our in-house Master Electricians to exceed National Electrical Code (NEC) standards.
Guaranteed Structural Integrity
We conduct a full structural analysis for wind and snow loads specific to your Illinois location, using only certified racking systems to protect your home.
Illinois Areas We Serve
From our new Illinois hub, we provide expert services to businesses in major metropolitan areas and rural communities alike.
- Across Illinois
Solar and electrical experts across Illinois
Pick your city or call us to book a free site assessment with a Master Electrician.
9
Cities served
500+
5-star reviews
A+
BBB rating
Enrollment, REC sales and disclosures handled
Based in Wauwatosa. See our Wisconsin services or call 414-404-6900
Common Questions from Illinois Customers
Quick answers about solar payback, incentives, installation and warranties.
Typical: 12–16 years (based on calculator showing ~12.8 years for 13 kW system generating $1,969/year in savings). Your actual payback depends on electricity consumption, local rates, system size, and available incentives.Â
Yes. Illinois Shines is a state program paying you for Renewable Energy Credits (SRECs) your system produces. If your system participates, the RECs are sold to utilities, you cannot claim environmental benefits. Your benefit is the upfront SREC payment ($3,000–$10,000+) plus reduced electricity bills. Enrollment subject to program capacity and approval, not guaranteed.
For ownership + tax incentives: Yes. You must own your home to claim the 30% Federal ITC and qualify for most incentives. Renters can participate in community solar programs (credits on electricity bill) but don't own systems.
Yes. Your solar system can be designed to accommodate battery storage (Tesla Powerwall) later. We design systems with future expansion in mind. Adding storage is typically straightforward, though electrical modifications may be required.
On-site installation: 1–3 days. Full timeline (consultation to activation): 8–12 weeks, depending on permitting speed and utility queue. We maintain transparency about timelines throughout.
1-year workmanship warranty on our installation. Equipment manufacturers provide separate warranties: 25–30 years for solar panels, 10–15 years for inverters. We manage all warranty claims. Does NOT cover manufacturer defects, weather damage, or customer misuse.
If you own the system: Solar systems are transferable to new owner. If you lease or have a PPA: Terms vary some transfer, some require buyout. Your contract specifies. Battery systems (Powerwall) typically transfer as well.
No. Lehmann Electrical is an independent solar installer and electrical contractor. We are NOT employed by, representing, endorsed by, or acting on behalf of any utility, utility program, consumer group, or governmental body. We are an Approved Vendor under Illinois Shines (state incentive program).
Talk to our team about your Illinois solar or electrical project.
Take the First Step Toward Energy Independence
Get your free site assessment and quote from our in-house Master Electricians.
Talk to a Local Electrician
What happens next
You tell us about your project and city
A Master Electrician reviews your project and reaches out
You get your quote
414-404-6900
- info@lehmannelectrical.com
- 12012 W Fairview Ave, Wauwatosa, WI 53226
- Mon to Fri, 8:00 AM to 5:00 PM · Sat & Sun: Closed
500+ Google reviews
Better Business Bureau
Service was prompt and efficient, estimator explained the job and options well.
Nick V. · Google review
Request Your Illinois Quote
Tell us about your project. A licensed electrician reviews every request and gets back to you during office hours.
4.9 from 500+ Google reviews
- Licensed & insured
- Local team
- Your info stays private
Prefer to talk? Call 414-404-6900 · Mon to Fri, 8 AM to 5 PM
Important Consumer Disclosures: Illinois Solar Customers
Lehmann Electrical & Design is an independent solar installer and seller of photovoltaic systems. We are NOT employed by, representing, endorsed by, or acting on behalf of any utility, utility program, consumer group, or governmental body. We are an Approved Vendor under the Illinois Power Agency’s Adjustable Block Program (Illinois Shines).
Your Renewable Energy Credits (RECs) & Environmental Attributes
If your system participates in Illinois Shines, the renewable energy credits (RECs) generated by your system will be sold by Lehmann Electrical to Illinois utilities. This means:
- You will NOT receive the environmental benefits of your system’s generation.
- You cannot claim your system uses “clean” or “renewable” electricity.
- Environmental attributes belong to the utilities that purchase the RECs.
- Your primary benefit is the upfront SREC payment from Illinois Shines and reduced electricity costs.
Important Documents You Will Receive
- Illinois Shines Informational Brochure: Describes the program, your rights, and incentive details.
- Standard Disclosure Form: Details YOUR specific system design, costs, incentives, and estimated financial return. This will be provided BEFORE you sign any contract.
Questions? Contact the Illinois Power Agency Program Administrator at www.illinoisshines.com.