Engineering & Permitting Services
Permit-ready plan sets, drawn to your AHJ's spec
Standardized, permit-ready PV design packages and professional engineering support for solar installers and EPCs — residential, commercial, and PE-stamped, delivered fast.
1–2 Business Day Turnaround
All 50 U.S. States
NEC 2023 Compliant
Free Revisions
Thousands Delivered
Three plan-set types, built for how you actually sell solar
Each package includes a different drawing set, tailored to the install type — not a copy-pasted checklist. Pick the one that matches the job.
Residential & Storage
Pitched-roof plan sets · up to 20 kW
For single-family and townhome rooftop PV, with or without battery storage.
● Cover Sheet with Project & Installation Details
● Design Notes & Applicable Code Compliance
● Solar Site Plan & Equipment Layout
● Roof & Array Layout Drawings
● Module Mounting & Racking Details
● Structural Calculations & Engineering Support
● Electrical Single-Line Diagram
● Bill of Materials (BOM)
● NEC Load & Voltage Calculations
● Required Safety Labels & Placards
● Solar Equipment & Manufacturer Datasheets
● Elevation Views (When Required)
Commercial & Ground-Mount
Utility & C&I plan sets · over 20 kW
For ground-mounted arrays, carports, and flat-roof commercial systems with multiple arrays or inverters.
● Cover Sheet with Project & Installation Details
● Design Notes & Applicable Code Compliance
● Solar Site Plan & Equipment Layout
● Roof & Array Layout Drawings
● Module Mounting & Racking Details
● Structural Calculations & Engineering Support
● Electrical Single-Line Diagram
● Bill of Materials (BOM)
● NEC Load & Voltage Calculations
● Required Safety Labels & Placards
● Solar Equipment & Manufacturer Datasheets
● Elevation Views (When Required)
PE Engineering Stamps
Structural & electrical review
For any residential or commercial project where the AHJ requires a licensed Professional Engineer's stamp.
Structural PE Stamp
Electrical PE Stamp
Structural Engineering Review & Calculations
Electrical Engineering Review
Code Compliance Review
Certification Letters (When Required)
Battery Energy Storage System (BESS) Engineering Support