Occidental Power vs Trulysun Energy
San Francisco Electrical Contractors Comparison · Updated March 2026
This comparison contrasts a 36-year veteran general contractor with limited reviews against a 4-year solar specialist with documented customer feedback and owner involvement.
| Occidental Power | Trulysun Energy | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.4 |
| Years Licensed | 36 years | 4 years |
| License # | 591549 | 1078990 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Francisco, CA | San Francisco, CA |
| Website | www.oxypower.com | trulysun.com |
Key Differences
What Customers Say
Trulysun Energy
Customers consistently praise owner involvement and communication during installations, but multiple reports indicate challenges with permitting inspections and extended project timelines.
Key Takeaway: Trulysun Energy has documented customer feedback revealing both strengths and specific challenges, while Occidental Power operates without public reviews to assess current performance quality.
Customer Reviews
Occidental Power
No reviews available
Trulysun Energy
Trulysun installed solar at my home. They worked through supplier challenges, city permitting and with PGE. Couldn’t be happier with their professionalism and diligence!
Super impressed with David Rubio from Trulysun Energy and would highly recommend. For the last 3 years my solar system has been great, but intermittently shutting down during the rain. The first four...
Great company to work with! David and his team did a fantastic with our solar panels installation! I would recommend them to anyone who is looking to install solar!
Consider Occidental Power if...
- ✓ Your project involves complex troubleshooting or modifications to existing electrical systems where three decades of problem-solving experience could identify issues a newer contractor might miss.
- ✓ You're willing to thoroughly vet references directly since public review history is unavailable, and you prioritize licensing tenure over documented customer feedback.
- ✓ Your timeline can accommodate potential unknowns, as the lack of recent customer feedback means you're taking on more uncertainty about current communication practices and crew quality.
Consider Trulysun Energy if...
- ✓ You're installing solar panels, EV chargers, or servicing existing photovoltaic systems where Trulysun's specialized focus and documented solar experience aligns directly with your project scope.
- ✓ You value high owner involvement and responsiveness during the project, as customers consistently note direct communication with leadership throughout installations.
- ✓ You can build extra time into your schedule to accommodate potential permitting delays, which multiple customers have experienced, and you're prepared to follow up proactively on inspection scheduling.
- ✓ You want to review actual customer experiences before signing, as Trulysun has documented feedback covering the types of work you need done.
Questions to Ask Before Hiring
- → Ask Occidental Power for at least three recent references from projects completed in the past 12 months, specifically requesting contact information so you can verify their current work quality and communication practices.
- → Ask Trulysun Energy how they've addressed permitting inspection issues mentioned in reviews and what specific steps they now take to ensure inspections are scheduled and passed without delays.
- → Ask both contractors about their typical project timeline from contract signing to final approval, including how long permitting and inspections usually take for your specific project type.
- → Ask Trulysun Energy how long their current installation crew has been working together and what their crew's background is with solar installations in San Francisco.
The Bottom Line
If you're installing solar panels or EV chargers and can accommodate potential permitting delays, Trulysun Energy offers specialized solar expertise with documented customer experiences showing strong owner engagement and communication. Their 4-year track record is sufficient for standard installations, and you can verify their work quality through actual customer feedback. Choose Occidental Power if your project requires deep troubleshooting expertise or complex electrical problem-solving where 36 years of experience matters more than solar specialization, but only after thoroughly vetting recent references to confirm they're currently delivering quality work and communication. For most residential solar installations, Trulysun's documented specialty and customer feedback provide more verifiable information to base your decision on this week.
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Frequently Asked Questions
Licensing tenure proves they've maintained credentials for decades, but it doesn't verify current work quality, crew professionalism, or communication practices. Long licensing history means they understand codes and have survived as a business, but you'll need to verify through direct references that they're actively performing quality work today. Without reviews, you're relying entirely on what they tell you rather than independent customer verification.
Multiple customers reporting inspection delays suggests a pattern rather than isolated incidents, which is concerning for your project timeline. However, these challenges often reflect a newer company still mastering San Francisco's specific permitting requirements rather than poor technical work. Ask specifically what they've changed in their process and request references from recent projects to see if the pattern has improved.
For straightforward solar panel installations, four years is sufficient if the contractor specializes in solar work and demonstrates competence. Trulysun's focused solar experience may actually be more relevant than general contracting experience. However, if your project involves unusual roof configurations, aging electrical panels, or complex troubleshooting, Occidental's deeper experience base could prove valuable. The key question is whether you're paying for relevant solar expertise or general contractor experience.
This is standard in the solar industry, where equipment manufacturers often arrange installation through local contractors. It can actually benefit you through manufacturer warranties and quality standards. However, clarify who's ultimately responsible for warranty service, permitting issues, and long-term system performance. Make sure your contract is directly with Trulysun so you have clear recourse if problems arise, rather than going through a third-party equipment provider.
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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 12, 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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