Commercial Solar & Storage
Commercial Solar & Storage That Lowers Your Costs Across California.
  • Carports, rooftop, and ground-mount engineered for Title 24.
  • Cash, loan, lease, and PPA options matched to payback.
  • Rule 21 interconnection with LADWP, SCE, SDG&E, PG&E.
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Savings & Resilience
Model Your Payback and IRR Before You Build.
Calculate potential savings Send RFP/Plans
Turnkey EPC
From Feasibility to Permission-to-Operate and Long-term O&M.
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We deliver turnkey commercial solar across California.
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About SWT Energy

Why California businesses choose SWT Energy

SWT Energy is a Los Angeles–based commercial solar EPC. We model your load profile, design to structural and electrical realities, optimize incentives, and manage Rule 21 interconnection through permission-to-operate. Our monitoring and O&M keep assets producing for decades.

Since 2010, our clients have offset
612,845,31+

Pounds of CO₂.

Tailored energy solutions

Turnkey PV engineered to your facility, schedule, and capex/opex goals.

California utility expertise

Rule 21 interconnection and PTO with LADWP, SCE, SDG&E, and PG&E.

Portfolio & multi-site rollout

Standardized designs to scale across locations and cut soft costs.

Battery storage & demand savings

Peak shaving, backup power, and program optimization with O&M.

Discover cost stability with solar. Explore our projects
Solutions

Commercial solutions built for ROI.

From feasibility to PTO, we align design decisions with measurable financial outcomes. Add battery storage for peak shaving and resilient backup, plus EV charging for staff or fleet.

Carports, rooftop, and ground-mount PV with stamped drawings.
Rule 21 interconnection and Title 24 awareness for compliance.
Discover more
Have any question? 1 800 511 2322
Commercial Solar Modeling

See your potential savings

We align design to measurable financial outcomes.

Share a recent utility bill or interval data — we’ll model tariff impacts, incentives, and a payback window you can defend with finance.

Calculate potential savings
Solar production and savings graphic Solar production and savings graphic

50%

Average energy offset*

Projects completed in last 5 years.

Happy customers who trusted us.

Awards milestones awarded to us.
Commercial Energy
Our successful project

Recent commercial projects

A snapshot of installations for manufacturing, logistics, retail centers, schools, and municipalities across California.

Completed SWT Energy commercial solar installation
Completed SWT Energy commercial solar installation
Completed SWT Energy commercial solar installation
Completed SWT Energy commercial solar installation
Completed SWT Energy commercial solar installation
Completed SWT Energy commercial solar installation
Completed SWT Energy commercial solar installation
Free
Let’s scope your project. Get free quote
Service Areas

Serving all California

Map showing SWT Energy service coverage across California

Request a Commercial Solar Assessment

Tell us about your facility, load profile, and timeline. We’ll return a practical, incentive-aware plan with projected savings and payback.

Call us directly 1 800 511 2322

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What’s a typical payback for commercial solar in California?

Most projects we model land between 3–7 years depending on tariff, usage, incentives, and financing. We’ll provide a pro forma tied to your actual bills.

Do you handle Rule 21 interconnection and PTO?

Yes. We prepare, submit, and track interconnection under Rule 21 and coordinate with LADWP, SCE, SDG&E, or PG&E through permission-to-operate.

Can storage reduce demand charges or provide backup?

Both. We design storage for peak shaving, TOU arbitrage, and resilient backup with controls and monitoring to protect operations.

What financing options do you offer?

Cash, loan, lease, and PPA structures are available. We’ll align terms with your balance-sheet strategy and target IRR.

Do you support multi-site or portfolio deployments?

Yes. We standardize equipment and documentation, then phase installations to minimize downtime and soft costs.

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