• 30 N Gould St Ste R Sheridan, WY 82801 United States
  • info@solartro.com
+1 307-429-3502

Solar Permit Design

Permit-Ready, Code-Compliant Solar Plan Sets That Get Approved — Faster

At Solartro, we deliver permit-ready solar plan sets engineered to meet local AHJ, utility, fire, zoning, and electrical code requirements—helping solar installers and EPCs secure approvals quickly and install with confidence.

From residential rooftops to multi-megawatt commercial installations, ground-mount systems, battery storage, and generator integration—our designs are precise, complete, and approval-focused. Built to minimize revisions, reduce delays, and keep projects moving.

Fast turnaround. High approval rates. Nationwide coverage.

What's Included in Our Permmit Design Packages

Every Solartro permit package is engineered, structured, and field-ready. We don't cut corners—our plan sets include every document, drawing, calculation, and specification your AHJ and utility require.

Complete Solar Permit Plan Set

Cover Sheet & Project Information

  • Professional title page with project name, address, and system overview
  • Sheet index with organized drawing list
  • Governing codes section: NEC, IBC, IFC, local amendments
  • Project description: System size (kW DC/AC), module count and scope summary
  • Vicinity map, Parcel Number and Aerial view photo with array location marked

Site Plan & PV Array Layout

  • Roof plan or ground-mount layout with dimensions
  • PV array location, spacing & obstruction mapping
  • Fire setback compliance ( 3' pathways, ridge access, hip/valley clearances per IFC requirements)
  • Property lines (front, side, rear yard dimensions)
  • PV module placement and quantity (shown to scale)
  • Main service panel (MSP) location or utility meter and other electrical equipment location
  • Conduit routing paths from array to electrical interconnection
  • String layout showing series wiring of modules
  • Array dimensions: overall length, width, and area coverage (sq ft)

Structural Details & Mounting Specifications:

  • For Roof-Mounted Systems:
    • Roof attachment method (penetrating/non-penetrating, rail/railless)
    • Mounting method & racking system
    • Attachment point spacing and pattern layout
    • Point load calculations at each attachment location
    • Dead, live, wind & snow load assumptions per ASCE 7
    • Lag bolt or through-bolt specifications (size, length, torque requirements)
    • Cross-section views showing module tilt, rafter attachment, roof decking, and framing
  • For Ground-Mount Systems:
    • Foundation details (helical piles, concrete piers, ballasted)
    • Racking structure specifications and engineering
    • Post spacing and depth requirements
    • Trenching and conduit routing plans
    • Civil site grading and drainage considerations

Electrical Design & Calculations (NEC-Compliant):

  • Complete electrical system flow from PV array to utility interconnection
  • Single-Line Diagram (SLD) and Three-Line Diagram (3LD) - for commercial/complex systems
  • All major components: modules, inverters, combiners, disconnects, MSP, utility meters
  • Detailed three-phase wiring schematic showing all conductors, phases (A, B, C), neutral, and ground
  • Phase balancing across inverters and electrical panels and load distribution
  • Grounding system: Grounding electrode conductor (GEC), ground rods, equipment grounding
  • String sizing and configuration (Voc, Isc, Vmp, Imp)
  • 120% rule calculation: Main breaker + solar breaker ≤ 1.2 × bus bar rating (NEC 705.12(D)(2))
  • Wire and conduit sizing per NEC Article 310
  • Voltage drop calculations (Maintaining <2% voltage drop on DC side, <3% on AC side)
  • Overcurrent protection device (OCPD) sizing ,Grounding and bonding details per NEC Article
  • Arc-fault protection (AFCI) per NEC 690.11
  • Busbar or panel capacity verification & Rapid shutdown requirements per NEC 690.12
  • Interconnection Method Details:
    • Load-side breaker interconnection
    • Line-side tap connection (supply-side)
    • Subpanel/separate service installation
    • Utility coordination requirements

System Specifications & Equipment Datasheets:

  • Equipment datasheets (modules, inverters, disconnect, combiners, racking, batteries, generators and other electrical components)
  • System labels & safety placards
  • Placard size, placement details & compliant text
  • Bill of Materials (BOM) / Balance of System (BOS)
  • Placard physical size specifications: typically 3" × 5" or larger, reflective vinyl, white letters on red background (for fire department visibility)
  • Complete placard package meeting NEC 690.56 requirements ( Solar PV System, Rapid shutdown, Interconnection and Battery storage placards
  • Arc flash warning labels: At electrical equipment per OSHA requirements

Battery Storage Integration :

  • We design permit-ready battery storage plan sets for:
    • Grid-tied systems, Off-grid systems & hybrid system designs supported
    • AC-coupled & DC-coupled configurations
    • Battery add-ons to existing solar
    • Whole-home backup & Critical load backup
    • Tesla Powerwall, Enphase IQ Battery (all major brands supported)

What’s Included

  • Battery system layout and placement (indoor/outdoor, wall-mount/floor-mount, NEMA enclosure ratings)
  • Electrical integration diagrams : SLD & 3LD (as required)
  • SLD & 3LD (as required)
  • Automatic Transfer Switch (ATS) integration for backup power & Critical load subpanel (if partial-home backup) or Microgrid Interconnect Device (MID) integration
  • Fire code clearances (NFPA 855): Minimum distances from combustibles, egress paths, ventilation requirements and exhaust specifications, Smoke and thermal detection requirements
  • NEC Article 706 (Energy Storage Systems) compliance: UL 9540 and UL 9540A certification documentation, Rapid shutdown compliance per NEC 690.12
  • Equipment datasheets & placards
  • Safety placards: ESS warning labels, fire department information
  • Battery management system (BMS) documentation, fire suppression (if required), smoke/gas detection

We turn complex battery permits into smooth approvals.

Commercial Solar Permit Design Services

Permit-Ready Engineering for Commercial & Industrial Solar Projects.

Commercial solar projects demand a higher level of engineering precision, regulatory coordination, and documentation accuracy. From complex electrical interconnections to structural load verification and fire code compliance, even small permit errors can lead to costly delays.

At Solartro, we deliver permit-ready commercial solar plan sets engineered to meet AHJ, utility, fire, and building department requirements—helping EPCs, developers, and contractors secure approvals faster and build with confidence.

From rooftop systems to ground mounts, carports, and energy storage, our commercial permit designs are accurate, code-compliant, and field-ready

COMMERCIAL SOLAR PERMIT PLAN SET (Expanded for Larger Systems):

  • 📌 All residential components PLUS
  • 📌 Enhanced Electrical Design
  • 📌 Advanced Structural Engineering
  • 📌 Fire Safety & Code Compliance
  • 📌 Production Analysis

Generator Installation Permit Design Services

Permit-Ready Generator Plans for Reliable Backup Power

Power reliability is mission-critical—especially during outages, grid failures, and extreme weather events. At Solartro, we deliver professionally engineered, permit-ready generator plan sets that simplify approvals and ensure safe, code-compliant generator installations for residential, commercial, and industrial projects.

Our generator permit designs are built to meet local AHJ, electrical, building, zoning, and fire code requirements, helping installers secure approvals faster and install with confidence.

What’s Included

  • Generator placement with clearances (18–60 inches from structure, 60 inches from windows/doors, property setbacks)
  • Concrete pad specifications (4–6 inches thick, reinforced, dimensions)
  • Fuel system routing (natural gas line, propane tank location, diesel storage)
  • Electrical integration and transfer switch details
  • Automatic Transfer Switch (ATS) location and wiring
  • Generator-to-ATS conduit routing & load management (whole-home vs. essential circuits)
  • Fuel type & safety clearances
  • Conduit routing & grounding
  • Coordination with solar/battery systems (if hybrid backup)
  • AHJ-compliant notes & NEC Article 702 (Optional Standby Systems) compliance
  • Manufacturer datasheets: Generator specifications (Generac, Kohler, Cummins), ATS From planning to permit approval—we guide you end to end

Frequently Asked Questions

What information do you need to create a permit design?

At minimum: property address, system size or module count, equipment specs (module, inverter, racking), roof measurements (or satellite imagery access), and electrical panel photos. Complete info ensures faster, more accurate designs.

Can you design permits for all 50 states?

Yes! We have experience in every U.S. state and familiarity with over 18,000 AHJ jurisdictions nationwide.

Do you provide PE stamps?

Yes, we coordinate Professional Engineering stamps (structural and electrical) in all states where required. Stamping adds 24-48 hours to delivery timeline.

What if the AHJ rejects the plans or requests revisions?

If rejections are due to our design (not scope changes), revisions are free and prioritized. We stand behind our work until your permit is approved.

Can you adapt to our company templates?

Absolutely. We can use your existing templates, branding, and formatting preferences, or provide our professionally designed templates.

How quickly can you deliver a permit design?

Residential systems: 12-24 hours. Commercial systems: 2-4 business days. Rush service available for urgent projects (6-12 hour delivery for residential).

Do you handle battery storage and generator permit designs?

Yes, we specialize in battery storage (BESS) permit designs meeting NFPA 855 and NEC Article 706, and generator installation permits meeting NEC Article 702.

What if we already have a site survey from another company?

No problem. We can work with site data from any source. However, bundling survey + design through Solartro ensures seamless data integration and faster turnaround.

Do you design ground-mount and carport systems?

Yes, we design all types of ground-mount systems (residential, agricultural, commercial, utility-scale) and carport structures with complete structural engineering and foundation details.

Can you design off-grid systems?

Yes, we design off-grid solar + battery + generator systems with proper load calculations, battery sizing, and backup power coordination.

How much does a solar permit design cost?

Pricing varies based on system size, complexity, and location. Contact us for a custom quote: info@solartro.com. Volume discounts available for installers with recurring projects.

Solartro provides professional solar permit design, solar engineering, CAD drawings, and PE-stamped plans for residential and commercial solar projects across all 50 U.S. states. Fast, accurate, and AHJ-compliant solutions.

Company

Services

Contact Info

  • 30 N Gould St Ste R Sheridan, WY 82801 United States
  • Brigade IRV Centre 9th Floor Nallurhalli Road, Nallurhalli Whitefield Bengaluru – 560066 Karnataka, India
  • +1 307-429-3502
  • info@solartro.com

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