Semper Solaris

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About Semper Solaris
Semper Solaris operates as a solar energy contractor serving Sacramento homeowners and businesses, holding a strong 4.5-star rating derived from 35 customer reviews. Established to help California residents transition to renewable energy, the company focuses on residential solar panel installations and battery backup systems tailored to the Sacramento valley climate. Their service team works extended hours Monday through Saturday from 7 AM to midnight, with Sunday availability from 9 AM, accommodating schedules for property owners across the greater Sacramento metro area who seek to reduce dependence on traditional utility power.
Without access to confirmed brand partnerships or warranty details from company documentation, prospective clients should verify any equipment guarantees during initial consultation. Reviewers note the company handles both new system installations and expansions to existing setups, with some homeowners adding panels years after initial deployment. The workforce maintains consistent communication throughout projects, though timelines varied significantly across documented experiences. Homeowners are encouraged to request written scope-of-work agreements and confirm all permit coordination responsibilities before signing service contracts.
Customer experiences highlight specific team members making measurable differences in project outcomes. Reviewers identified Scott as a primary coordinator who managed communication through several installations, including complex NEM 2.0 deadline transitions. Technician Brian received particular commendation for punctual arrival and clear explanation of work performed, with one veteran reviewer comparing his professionalism to Air Force service standards. Lead installers Tony and Sangar were noted for detailed walkthroughs of system components, while crew members Alex and Octavio were recognized for efficient roof-level work during challenging summer conditions. Some customers experienced extended delays exceeding initial projections, while others reported smooth same-day or next-day turnaround for additional panel work.
What Customers Say
Four of five reviewers awarded 5-star ratings citing friendly crews, clear communication, and successful system installations including NEM 2.0 transitions. Negative feedback centered on timeline delays reaching eight months, improper initial installation causing fire damage, and unresolved financial disputes exceeding $13,000. All positive reviews named individual technicians, while criticism focused on management responsiveness rather than equipment quality.
Working Hours
| Sunday | 9 AM–12 AM |
| Monday | 7 AM–12 AM |
| TuesdayToday | 7 AM–12 AM |
| Wednesday | 7 AM–12 AM |
| Thursday | 7 AM–12 AM |
| Friday | 7 AM–12 AM |
| Saturday | 7 AM–12 AM |
Services
Residential Solar Panel Installation
Complete rooftop solar array design and mounting for single-family homes across Sacramento neighborhoods.
Battery Backup Systems
Storage solutions including Tesla Powerwall and comparable units to maintain power during outages.
System Expansion & Upgrades
Adding panels to existing installations when household energy needs increase, such as acquiring electric vehicles.
Solar Permitting Coordination
Handling PG&E interconnection paperwork and city permit submissions including final inspection arrangement mentioned by reviewers.
Generator Transfer Switch Installation
Manual transfer switch integration for backup generator connection to household electrical systems.