Outsourced PV + ESS Design Support
Solar Design Services for Installers & Contractors
Add experienced solar design capacity without adding another full-time employee. Gemini Solar Design supports ongoing production, overflow work, difficult PV and battery projects, AHJ revisions, and PE coordination.
Review the Actual Work
Complete plan sets—not cropped screenshots
Open the secured, high-resolution vector PDFs below to evaluate drafting quality, electrical documentation, equipment coordination, and project depth before sending work.
Site Plan
208Y Enphase Apartment Complex
Five-building rooftop PV design using Enphase IQ8H-3P microinverters and 120/208Y three-phase service.
VIEW FULL PLAN SET PDF ↗
Electrical Diagram
943 kW Commercial Solar Carport
480V Solectria design with combiners, long feeder runs, conductor schedules, and utility interconnection details.
VIEW FULL PLAN SET PDF ↗
Electrical Diagram
Dual GridBOSS + Dual FlexBOSS
Ground-mount PV with battery backup, standby generator integration, and PE-stamped documentation.
VIEW FULL PLAN SET PDF ↗Permit-Ready Documentation
What your project can include
Each scope is built around the actual project, equipment, utility, and jurisdiction—not forced into a generic drawing package.
Site, Roof & Array Plans
Equipment locations, setbacks, access pathways, module layout, attachment information, and project-specific notes.
Single-Line & Three-Line Diagrams
Clear electrical architecture for residential, commercial, three-phase, battery, backup, and generator-integrated systems.
Electrical Calculations & Schedules
Conductor, conduit, overcurrent protection, voltage-drop, stringing, load, and equipment schedules as applicable.
Interconnection Details
Load-side, supply-side, PCS-controlled, and project-specific utility interconnection documentation.
Placards, Details & Cut Sheets
Code-required labels, construction details, equipment specifications, and coordinated supporting documentation.
Revisions & PE Coordination
Support through AHJ or utility comments, plus electrical and structural engineering coordination when required.
A Straightforward Workflow
From project files to permit plan set
You work directly with the designer, so technical questions, missing information, and revisions do not disappear into a handoff chain.
Send the Project
Provide the address, equipment, site information, utility details, and any available photos or drawings.
Confirm Scope
The project is reviewed, missing inputs are identified, and the required design and engineering scope is confirmed.
Review the Plans
Receive the project-specific plan set for contractor review before final delivery and engineering coordination.
Handle Revisions
AHJ, utility, customer, equipment, and field-driven revisions are addressed as the project moves forward.
Contractor Feedback
Built for real project pipelines
We worked with Gemini Solar Design on hundreds of residential solar projects, primarily Enphase microinverter systems, and Sanjay consistently proved to be a dependable design partner for our company.
Copperlight Solar & Electric Residential Solar Contractor · ArizonaGemini Solar Design provided the level of detail and technical understanding we look for in a design partner, and we would be happy to work with them again.
Redvale Solar & Electric Commercial Solar Contractor · Georgetown, TexasStart Small. Evaluate the Work.
Send one trial project
Choose an upcoming project that needs design support—routine, overflow, revision-heavy, or technically complex. Send the basic information and Gemini Solar Design will review the scope and tell you what is needed to move forward.
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Solar Design Services by Project Type
Go directly to the design information that matches your project.