Comprehensive Commercial Energy Solutions That Maximize Savings & Sustainability
Powering California's Energy Independence
Complete Energy Solutions Under One Roof
From solar PV to battery storage and EV charging, we provide comprehensive commercial energy solutions that work together to maximize your savings and sustainability.
Solar PV Systems
High-efficiency commercial solar panels with 25-year warranties. Reduce electricity costs by 30-50% with clean, renewable energy.
- Tier 1 solar panels
- 25-year performance warranty
- Real-time monitoring
Battery Energy Storage
Advanced battery systems for peak shaving, backup power, and energy independence. Eligible for California SGIP rebates.
- Peak demand reduction
- Backup power capability
- SGIP rebate eligible
Combined Heat & Power
Efficient cogeneration systems that produce electricity and thermal energy simultaneously, achieving 80%+ efficiency.
- 80%+ system efficiency
- Reduced energy costs
- Lower emissions
EV Charging Infrastructure
Commercial EV charging stations for employee and fleet vehicles. Future-proof your property with clean transportation.
- Level 2 & DC fast charging
- Fleet management systems
- Employee charging programs
Energy Management Software
Smart monitoring and control systems to optimize energy consumption, track savings, and identify opportunities.
- Real-time monitoring
- Predictive analytics
- Automated controls
Energy Efficiency Retrofits
Comprehensive building upgrades including LED lighting, HVAC optimization, and building envelope improvements.
- LED lighting upgrades
- HVAC optimization
- Insulation improvements
Your Journey to Energy Independence
Our proven 5-step process ensures a smooth transition to clean energy with minimal disruption to your business operations.
Energy Analysis
We conduct a comprehensive assessment of your energy usage, costs, and infrastructure to identify savings opportunities.
Custom Design
Our engineers design a tailored energy solution optimized for your specific needs, budget, and sustainability goals.
Financing & Incentives
We help you secure optimal financing and maximize all available tax credits, rebates, and incentives.
Professional Installation
Our certified technicians install your system with minimal disruption, following all safety and quality standards.
Monitor & Save
Track your energy production and savings in real-time while we provide ongoing maintenance and support.
California's Trusted Energy Partner
Our numbers speak for themselves
Multifamily & commercial
Successfully completed
On energy costs
Since 2012
Trusted by California's Leading Organizations
Join hundreds of businesses and 14,000+ multifamily units saving with Promise Energy
Los Angeles Convention Center
Largest Solar Project on Municipal Convention Center
Specialized Solutions
Powering Every Industry
Commercial Buildings
Office buildings, retail centers, and mixed-use properties benefit from reduced operating costs.
Industrial Facilities
Manufacturing plants and warehouses achieve energy independence with large-scale systems.
Multifamily Housing
Apartment complexes and affordable housing reduce costs while meeting sustainability goals.
Educational Institutions
Schools and universities save on energy while teaching sustainability by example.
Healthcare Facilities
Hospitals and clinics ensure reliable power for critical operations with battery backup.
Government Buildings
Public facilities meet renewable energy mandates while reducing taxpayer costs.
Calculate Your Potential Savings
See how much your business could save with solar energy. Get instant estimates based on your location and energy usage.
Free • No Obligation • 60-Second Results
Real-Time Data
Uses current utility rates and incentives for your exact location
Accurate Estimates
Factors in system size, roof space, and energy consumption patterns
All Incentives
Includes federal tax credits, state rebates, and local programs
What Our Clients Say
Real results from real California businesses
The folks at Promise Energy were amazing! The entire team was extremely knowledgeable and very professional. As expert consultants, they guided us through the planning, procurement, and installation phases of our 2MW solar project. Their guidance and advice was invaluable to the success of our project.
You guys did a fantastic job - overall you get an A. You're one of the best subcontractors, very professional and responsible. You've done everything you said you would do, without question, without issue. That's something I respect. And it's a big thing for me, because it creates a trusting relationship.
We've done many projects together over the years, and the Promise Energy crew is always proactive, professional, and responsive. Great guys to be around, very knowledgeable, and always willing to go the extra mile to make each project a success.
Serving All of Southern California
With offices throughout California, we provide local expertise and rapid response for commercial solar installations in your area.
Los AngelesCalifornia
Serving all of LA County including Downtown, West LA, and the Valley with commercial solar solutions.
Service Areas
Orange CountyCalifornia
Complete coverage of OC's business districts with expert solar installation services.
Service Areas
San DiegoCalifornia
Powering San Diego businesses with clean, reliable solar energy systems.
Service Areas
Inland EmpireCalifornia
Serving Riverside and San Bernardino counties with commercial energy solutions.
Service Areas
Get Answers
Common Questions About Commercial Solar in California
California's Premier Commercial Solar Installation Company
Why California Businesses Choose Promise Energy
As California's leading commercial solar contractors, Promise Energy has helped over 500 businesses reduce energy costs and achieve sustainability goals since 2012. Our comprehensive approach to commercial energy solutions goes beyond simple solar panel installation – we design complete energy ecosystems that maximize savings and reliability.
With California's high electricity rates and aggressive renewable energy mandates, commercial solar has never been more valuable. Our expert team navigates complex regulations, maximizes incentives like the Investment Tax Credit and SGIP rebates, and ensures your system delivers maximum ROI.
Commercial Solar Solutions for Every California Business
Whether you operate a warehouse in Los Angeles, manage office buildings in Orange County, own industrial facilities in San Diego, or run multifamily properties in the Inland Empire, our commercial solar installations are tailored to your specific needs. We understand that every business is unique, which is why we offer customized solutions combining solar PV, battery storage, and energy management systems.
Our commercial solar contractors are certified, licensed, and experienced in working with California utilities including SCE, PG&E, and SDG&E. We handle everything from initial energy audits through permitting, installation, and ongoing maintenance, making your transition to solar energy seamless.
Start Your Commercial Solar Journey Today
Don't let rising energy costs impact your bottom line. As California's trusted commercial solar installation company, Promise Energy is ready to help you achieve energy independence. Our proven track record includes hundreds of commercial projects and over 14,000 multifamily units served, with an average project timeline of just 5-6 months.
Contact Promise Energy today for your free commercial solar consultation. Our energy experts will analyze your usage, identify savings opportunities, and design a custom solution that delivers immediate savings and long-term value. Join the hundreds of California businesses already benefiting from our commercial solar installations.