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Michael & Sun Solar vs Synergy Solar & Electrical Systems, Inc

Sonoma Solar Contractors Comparison · Updated March 2026

Quick Verdict

Two well-established, properly insured solar contractors with similar strengths, differentiated primarily by Synergy's four additional years of experience and track record of system expansions.

Michael & Sun Solar: A 14-year established solar contractor known for professional installations, clear communication, and competitive pricing throughout Sonoma County.
Synergy Solar & Electrical Systems, Inc: An 18-year veteran solar installer with particular strength in technical consultations, battery storage systems, and customers returning for upgrades.
Michael & Sun Solar Synergy Solar & Electrical Systems, Inc
Rating 5.0 4.8
Years Licensed 14 years 18 years
License # 967354 913951
Workers' Comp ✓ Yes ✓ Yes
Bond Amount $25,000 $25,000
Location Graton, CA Sebastopol, CA
Website www.michaelandsunsolar.com synsolar.com

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Key Differences

Synergy Solar's 18 years of licensing gives them a four-year edge in market experience over Michael & Sun's 14 years, which translates to navigating more building code changes, utility interconnection updates, and equipment technology transitions. This veteran status appears reflected in customer feedback showing people returning for battery upgrades and system expansions years after initial installations, suggesting stronger ongoing relationships and systems designed with future expansion in mind. Both companies receive praise for competitive pricing, professional installations, and clear communication, making them closely matched on execution quality. The practical distinction emerges in project portfolio: Synergy explicitly mentions microinverter upgrades and system expansions as service offerings, while Michael & Sun's feedback emphasizes thorough initial installations and financing coordination. Both work with Enphase equipment and battery backup systems, and both demonstrate the technical knowledge to explain complex solar concepts clearly. For straightforward new installations, these companies offer comparable value propositions with similar insurance protection and professional approaches.

What Customers Say

Michael & Sun Solar

Customers emphasize Michael & Sun Solar's professionalism throughout the project lifecycle, clear communication, and coordination of financing and permitting processes.

Synergy Solar & Electrical Systems, Inc

Customers highlight Synergy's thorough technical consultations, neat installation work, and ongoing relationships with clients returning for battery upgrades and system expansions.

Key Takeaway: Synergy shows a distinct pattern of customers returning years later for system expansions and upgrades, while Michael & Sun's feedback centers on excellent execution of complete initial installations.

Customer Reviews

Michael & Sun Solar

Jan 2026

We were extremely satisfied with Michael & Sun Solar. They were available any time for any of our many questions, even before we signed a contract. We love our solar and battery system. It's been so m...

Apr 2025

We recently completed our second solar installation with Michel and Sun Solar, having previously worked with them on another property. Once again, they delivered solid results. This latest project ca...

Feb 2025

Can't recommend Michael and Sun enough! They did a fantastic job from start to finish. Very professional, fast, on top of it! They also worked seamlessly with our solar lender and made it very easy fo...

Synergy Solar & Electrical Systems, Inc

Dec 2025

Mike and his team installed a regular solar system for me at the start of the year and then upgraded to a backup solar system in December. I am extremely pleased with both installations and found Mike...

Dec 2025

My husband and I have installed solar in a previous city and when relocating to our current home, installing solar was a no brainer. Our contractor recommended Synergy Solar and we’re extremely hap...

Nov 2025

We’ve had our system a couple of months now and are extremely pleased. The Enphase equipment and system have worked wonderfully. The installation was very neat and looks very professional. Passed al...

Consider Michael & Sun Solar if...

  • You're pursuing solar financing and want a contractor experienced in coordinating with multiple lenders to facilitate your purchasing process
  • Your project is a standard rooftop installation without anticipated future expansion needs in the near term
  • You value Graton's slightly more northern Sonoma County location if that's closer to your property for service calls
  • You're comparing multiple bids and want a contractor known specifically for competitive pricing alongside professional service delivery
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Consider Synergy Solar & Electrical Systems, Inc if...

  • You're planning a phased approach, starting with solar panels but anticipating battery storage additions or system expansion within a few years
  • Your project involves complex battery configurations requiring detailed technical consultation about Enphase versus Sonnen systems
  • You value the additional four years of licensing history and veteran-tier experience for navigating unexpected complications
  • You want a contractor with documented customer relationships extending years beyond initial installation, as evidenced by upgrade work
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Questions to Ask Before Hiring

  • Ask both contractors how they design systems to accommodate future battery additions or capacity expansions, and what that costs compared to installing everything upfront
  • Request references from customers whose installations are at least five years old to understand long-term performance and ongoing support
  • Ask about their specific experience with your roof type and any structural assessments they perform before installation
  • Inquire about warranty coverage distinctions between equipment brands they recommend and how they handle service calls after installation

The Bottom Line

Both contractors are legitimate, well-qualified choices with proper insurance, competitive pricing, and strong customer satisfaction. Choose Synergy Solar if you're planning future system expansions, need complex battery storage consultation, or simply value their veteran-tier 18 years of experience for added confidence in handling complications. Choose Michael & Sun Solar if you're doing a complete installation now without expansion plans, want a contractor particularly noted for financing coordination, or prefer their Graton location. Neither choice involves compromise on insurance protection or professional standards. Request quotes from both, compare their specific system designs for your property, and select based on which proposal better addresses your energy goals and timeline.

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Frequently Asked Questions

For straightforward rooftop installations on newer homes, both contractors have sufficient experience to handle the work professionally. The experience gap becomes more relevant if your roof has complications like multiple angles, older structure requiring assessment, or if you're planning system expansions down the road where Synergy's veteran status and track record with upgrades offers additional confidence.

Both install battery backup systems and work with quality brands including Enphase. Synergy has explicit customer feedback about battery storage upgrades and works with both Enphase and Sonnen systems, suggesting deeper specialization in storage configurations. If battery storage is your primary focus or you're considering a complex multi-battery setup, Synergy's demonstrated expertise in this area gives them an edge.

Both companies handle permitting and utility coordination as standard practice. Michael & Sun receives specific customer mentions about their permitting coordination, while Synergy's longer licensing history means they've navigated more regulatory changes over time. For homeowners, both should handle these administrative requirements competently, but ask each contractor about their typical timeline from contract signing to final utility approval.

Synergy demonstrates a clearer pattern of customers returning for system expansions and battery additions years after initial installation, and explicitly lists expansions as a service offering. If you're buying a smaller system now with plans to expand as budget allows or energy needs grow, Synergy's documented experience with phased projects makes them the more logical choice for that scenario.

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How We Compare Contractors

License Verification

All license data is sourced from official California CSLB records and verified regularly.

Review Analysis

Customer reviews are aggregated from Google and analyzed to identify patterns in service quality.

Detailed Comparison

We analyze credentials, insurance, experience, and feedback to highlight meaningful differences.

Not all licensed contractors are created equal. While a valid license is the baseline requirement in California, contractors can vary significantly in experience, insurance coverage, and customer satisfaction.

  • Experience matters: A contractor with 15+ years of experience has likely encountered and solved problems that newer contractors haven't faced yet.
  • Workers' compensation protects you: If a contractor without workers' comp insurance has an employee injured on your property, you could be held liable.
  • Reviews reveal patterns: Individual reviews can be misleading, but patterns across many reviews often reveal a contractor's true strengths and weaknesses.
  • Bond amounts vary: A contractor's bond provides financial protection if they fail to complete work as agreed. Higher bonds offer more protection.

Taking time to compare contractors on these factors can save you from costly mistakes and help ensure your project is completed by a qualified professional.

Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified March 13, 2026.

This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.

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