Commercial Solar Design Services

Commercial Solar System Design
Commercial & Industrial Solar PERMIT Design

C&I Solar System Design

Commercial Solar System Design

Illumine-i have done more than 200 MW size of projects across the United States in the commercial and industrial sector. With NABCEP certified engineers at our disposal, we focus on technical precision and constructability. We also have in-house capabilities to design solar carports.

Our team is also adept at providing PVSyst reports to determine annual energy generation of your commercial systems. As a part of energy analysis/modelling we review utility bills, investigate facility energy consumption, determine size of the PV plant required to offset power requirements, develop PVSyst model with solar resource assessment, build shading scenes, optimize PV plant production and provide P50/P95/P99 energy estimates.

Download Portfolio

When it comes to commercial solar energy solutions, you need to be able to rely fully on the continuous operation of your system. If you do not use a solar battery that stores excess solar energy, it is unlikely that you will be able to completely disconnect from the grid when installing a commercial solar energy system, and the future energy costs of your utility company will greatly affect the value of the commercial solar system and your business.


C&I PV Permit Plan

System Sizing and Production Estimates

  • PV system size determination and yearly energy production


  • PVSyst Solar project simulation report
  • Annual Energy generation

Equipment Selection

  • Inverter/Module recommendation and BOS selection

Solar Layout (Conceptual and Final)

  • Efficient and aesthetic PV module placement


  • Dead Load Calculations
  • Solar Structure Attachment and Anchoring Details
  • Review of existing structure to support solar
  • Structural Review


  • Wire and Conduit Sizing
  • Electrical Site Plan
  • String Wiring Plan
  • Voltage Drop Calculations
  • Electrical Equipment Mounting Details
  • Electrical Line Diagram
  • Warning Labels and Placards
  • Electrical Review (in US only)

Explore Design Services

Solar Permit Services
Residential Solar Design
Solar Permit Services
Utility Solar Design
Solar Permit Services
EVCS Design

Frequently Asked Questions

1. How much time does it normally take to get the final deliverables for submission from you?

The timeline depends on the type of project and the complexity of the scope involved in the project. We will let you know the turnaround time while quoting the project and strive to deliver all the design documents on time.

2. Why should I go with Illumine-i that prepares plans remotely?

Illumine-i has a local city based presence in California. We have delivered thousands of projects all across California, which were serviced by local professionals. We have local architects, designers, engineers who work on the architecture, design, and engineering projects.

3. Can Illumine-i provide printed plans as the final deliverables?

While we generally provide the electronic version of the stamped set of plans, we can provide printed plans to you if you need that. In the event electronic version of the plans is provided to you, you will need to be printed in order to submit to the city, and the number of sets depends on that jurisdictions requirements (please check your local city to determine what is needed for the submittal).

4. Has Illumine-i worked in my City or County?

Illumine-i has completed over 18,000 projects in 40 different states in the US. We have experience working with most jurisdictions, both City and County. Setup a call with us to find out if we have worked in your City or County.

5. Will Illumine-i do the construction part of the project as well? Can you refer contractors to me who can help undertake the construction?

We are a design and engineering firm and do not have install crews. We can put you in touch with subcontractors in your area if we know one.

6. Can you do permit plans for Commercial EV charging stations, Commercial Carports, Powerwall batteries, etc.?

Yes, we are well-versed in providing designs for EV charging stations, Carports, Powerwall batteries, etc. for both residential and commercial use.

7. When is the payment due?

Usually before 30 days from the receipt of invoice, but there are also case-by-case adjustments based on complexity.

8. What are the methods of payments?

Credit Card, Debit Card, Wire transfer, online cash transfer.