Electrician Companies and Solar: Why Your Solar Project Needs the Right Electrical Partner
$4,500 — that's the typical electrical work cost component within a residential solar installation in 2026, accounting for roughly 15 to 20 percent of the total project cost. Every solar installation is as much an electrical project as it is a roofing project. The panels capture sunlight, but it's the electrical work — wiring, disconnects, inverters, panel upgrades, and interconnection — that actually makes the electricity usable in your home and safe to export to the grid. Choosing the right electrician companies for your solar project is one of the most important decisions in the process.
Most full-service solar installation companies employ electricians or subcontract to licensed electrical contractors. But not all solar companies manage the electrical component with equal competence — and in some markets, homeowners are using separate electrical contractors to complete or correct electrical work that was done poorly during solar installation. Understanding what electrical work a solar project requires helps you evaluate the team you're hiring.
What Electrical Work a Solar Installation Requires
Every residential solar installation involves these electrical components:
Service panel evaluation and potential upgrade — The utility connection to your home comes through a service panel (breaker box) rated for a specific amperage. Most homes have 100-amp or 200-amp service. Adding solar requires available capacity in the panel for solar circuits. A 100-amp panel is often insufficient for a modern home with added solar and EV charging; upgrading to 200-amp service costs $1,200 to $2,800 and is sometimes required before solar installation can proceed.
Solar circuit breaker installation — The solar system's inverter connects to the panel through a dedicated circuit breaker. The breaker sizing depends on the inverter's output. Solar interconnection standards require backfed breakers to be installed at specific locations in the panel (the "120 percent rule" limits total load on a panel — the combination of the main breaker and solar breaker can't exceed 120 percent of the panel's busbar rating).
Rapid shutdown system — Modern electrical codes (NEC 2017 and later) require solar systems to have a rapid shutdown capability that de-energizes the wiring on the roof in the event of a fire. This requires additional electrical equipment (rapid shutdown devices at each panel or in module-level power electronics) that every compliant solar installation must include.
Interconnection and meter work — Connecting your solar system to the utility grid requires utility approval and a utility meter that can handle bidirectional energy flow (measuring both what you consume and what you export). In most markets, the utility installs a net metering meter after approving the interconnection application. The electrician coordinates this process and may do some of the meter-side work.
Battery storage electrical work — Adding a home battery to a solar installation requires additional electrical work: a transfer switch or automatic transfer switch, battery circuit connections, and in some cases a critical load subpanel that powers essential circuits from the battery during an outage.
| Solar Electrical Component | Low Cost | Average Cost | High Cost |
|---|---|---|---|
| Service Panel Upgrade (100A to 200A) | $1,200 | $1,900 | $2,800 |
| Solar Circuit and Breaker | $200 | $400 | $700 |
| Rapid Shutdown Equipment | $300 | $600 | $1,200 |
| Battery Transfer Switch | $500 | $900 | $1,800 |
| Critical Load Subpanel | $600 | $1,100 | $2,000 |
| Interconnection Application Support | $150 | $300 | $600 |
Why Electrician Credentials Matter for Solar
Solar electrical work requires a licensed electrician in all US states. The specific license requirement varies: some states require a general electrical contractor license; others require a solar-specific endorsement or certification. The North American Board of Certified Energy Practitioners (NABCEP) offers the most recognized solar industry certification, and many utilities and jurisdictions require or prefer NABCEP-certified installers.
Electrician companies doing solar work should carry electrical contractor licensing plus sufficient liability and worker's compensation insurance. Solar installations involve both rooftop and panel work — falls are among the most serious risk categories. Verify insurance before any work begins.
The electrical inspection is the most important quality control step in a solar installation. All solar electrical work requires permit and inspection by the local building department or utility. The inspection verifies that the electrical work meets National Electrical Code requirements, the rapid shutdown system is properly installed, and the interconnection is safe. An installation that passes inspection by a qualified electrical inspector is a meaningful quality indicator.
Red Flags in Solar Company Electrical Practices
Solar companies that skip or rush the electrical permitting process are a significant red flag. Unpermitted solar electrical work creates insurance issues, problems with utility interconnection, and potential safety hazards. Any solar company that suggests the permit "isn't really necessary" or that they'll "handle the paperwork later" is not operating properly.
Electrician companies or solar installers who don't pull permits, perform below-standard electrical work, and move on before inspections catch the problems have been a notable issue in high-demand solar markets. Homeowners who discover permit issues years later when selling their homes or making insurance claims face costly remediation.
Combining Solar and Electrical Upgrades
If your home needs electrical upgrades that are unrelated to solar — adding circuits for an EV charger, upgrading a subpanel, or addressing outdated wiring — the most cost-effective time to do that work is during a solar project when an electrician is already mobilized at your home. Bundling electrical upgrades with solar installation reduces the per-project mobilization cost and can often be included in a single permit.
Ask your solar installer or electrician company specifically about EV charger installation if you have or anticipate an electric vehicle — adding a Level 2 EV charger during solar installation adds $500 to $1,200 but is significantly cheaper than a separate mobilization later.
Frequently Asked Questions
Does a solar installer use their own electricians or subcontract? Both models are common. Large national solar companies typically have in-house licensed electricians. Smaller local solar installers may subcontract electrical work to a licensed electrical contractor. Either approach is fine — what matters is that the licensed electrician holds the appropriate state license and is the one signing off on the permit.
Can I use my own electrician for the electrical work in a solar installation? In many cases, yes — homeowners can hire a separate licensed electrician for the panel upgrade, battery work, or other electrical components while the solar company handles panels and racking. This requires coordination between the two contractors and clear scope delineation. Some solar companies prefer to control the full scope; others are flexible.
What's the NEC 120 percent rule for solar panel connections? NEC requires that the sum of the solar backfed breaker and the main breaker doesn't exceed 120 percent of the busbar rating. On a 200-amp panel with a 200-amp main breaker, the largest solar breaker allowed is 40 amps (200% of 200 × 1.20 = 240; 240 - 200 = 40). If more solar capacity is needed, a panel upgrade is required.
How long does the electrical portion of a solar install take? The electrical work on a residential solar installation (panel connections, disconnects, rapid shutdown) takes one to two days for a licensed electrician alongside the panel installation. Panel upgrades add another half to full day.
What electrical maintenance does a solar system need? Solar systems require minimal electrical maintenance. Annual visual inspection of the disconnects and inverter, monitoring for error codes, and checking connections at the 10-year mark is standard. Inverters typically warrant replacement at 10 to 15 years.
Ready to get solar quotes with proper licensed electrical work? Find licensed solar installers at havequote.com/solar.
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Sandra Okafor has covered the home improvement industry for over 12 years, with a focus on helping homeowners understand contractor pricing, licensing requirements, and project timelines. She holds a certification in residential remodeling and has contributed research to several national contractor trade publications. At HaveQuote, she leads editorial research and cost analysis.