Don't order a planset. Design one.
Permit-ready solar plansets in minutes: the complete set, not a partial one you finish in CAD. Single-line diagram (SLD), electrical, structural, AHJ sheets, all derived live as you draw, with a PE's judgment built in.
5,000+plansets permitted
Start with$0for one real project
Whole designer. Complete findings. Paid jobs include final downloads.
Pricing preview: $49/job or $149/month for 5 projectsGet started as a…
One free project · final downloads are paid.
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Your drafter.
Your project manager just became your drafter.
It automates the repetitive analytical work, the drafting, the reports, and the letters, so the person who manages the project can produce it.
Watch a whole job
- 1
~20 min
Design
Drag-and-drop in our editor. Equipment library + layout in minutes.
- 2
Live
AHJ checks
Every Florida county supported. The engine flags problems before the AHJ does.
- 3
Done
Permit-ready planset
Yours to submit: stamped or unstamped, your call.
Ryan Gittens, PE
Licensed PE · Founder
Founder
I built this because design was the bottleneck.
I’m a Florida PE. I built SDL because the tools I had were introducing errors.
Even a simple residential project pulls from too many sources: AutoCAD for geometry, Excel for wind loads, NEC tables for conductor sizing, ASCE for structural, the AHJ for local code quirks. None of them talk to each other. Every handoff is a place a number can be transcribed wrong, a reference can go stale, a rule can be missed.
So I built one interface that holds all of it. Every Florida AHJ, every NEC rule, every ASCE wind load, in the same engine, applied automatically, checked live as the design takes shape. The platform is the tool I built to catch my mistakes before they shipped.
If I wouldn’t sign it, it doesn’t ship.
That standard runs on every design you place, automatically.
License PE90605, verifiable at FL DBPR
Built for solar, not adapted from CAD
The most thorough SLD engine in solar.
Structural, electrical, roof layout and local AHJ requirements in one engine. Explore a few illustrative system arrangements below.
DC strings meet at the inverter. The AC circuit connects to the service panel.
Swipe across to follow the connections →
Select equipment to inspect it.
Preview of system connectivity. Open the designer to select real equipment, run design checks and build your plan set.
Flexible system layouts
Microinverters, string inverters, batteries and supply-side connections on the same canvas.
Live electrical checks
Wire sizing, OCPD propagation, grounding and voltage drop, derived from your design.
No template lock-in
Build around the equipment and connections your project needs.
Complete engineering package
Everything an AHJ asks for. Every time.
- Structural letters
- Wind & snow load analysis
- Fault current calcs
- Voltage drop & conductor sizing
- Single-line diagrams (SLD)
- Equipment list / BOM
- Cover sheet, site plan, electrical, structural sheets
- AHJ-specific labeling & signage
The engineering calculators the platform runs on.
Wind load · Fault current · Voltage drop · Conductor sizing · String sizing.
FAQ
The questions everyone asks.
What is included in a solar permit plan set?
Solar Design Lab brings the site layout, single-line diagram, conductor and equipment schedules, structural details and jurisdiction sheets into one plan set. Your project and permitting authority determine which sheets are required.
How much does a solar plan set cost?
The proposed model includes one complete free project. Additional jobs are $49 each, or $149/month for five projects. Final downloads are included with paid jobs; unlocking final downloads on the free project costs $49. Professional services are separate. See the pricing preview for allowances and terms.
Can I use my own engineer to review and stamp the plans?
Yes. Use your own engineer, or request review and stamping through Solar Design Lab. A professional engineer’s stamp is a separate service; generating a plan set does not automatically include one.
Do the electrical design checks guarantee permit approval?
No. Design checks help identify issues, but your authority having jurisdiction (AHJ) makes the approval decision. Local requirements and project-specific review still apply. Automated AHJ coverage is currently deepest in Florida.
Can I use Solar Design Lab alongside my existing solar software?
Yes. Keep your existing tools for sales and proposals, and use Solar Design Lab for electrical design and permit documentation. Your team works on the design directly instead of sending each project to an outsourced drafting queue.
From our engineers
The rules behind the plansets.
The NEC sections and design conventions our engine enforces, written out plainly. The same judgment that runs live as you design.
NEC Compliance
The 120% Rule vs Power Control Systems
When an NEC 705.13 Power Control System lets you skip a service upgrade, and where the 120% rule still applies.
NEC Compliance
PV String Sizing, Explained Properly
The full variable checklist behind NEC 690.7: panel inputs, inverter constraints, ASHRAE temperature corrections, and the step-by-step math.
Solar Design
Solar Wiring Diagram Guide
What every PV (and PV + storage) wiring diagram needs: the single-line and its conductor callouts, conductor schedule, OCPD, EGC, and the labels every AHJ checks.
Try one. Either it beats what you have or it doesn’t.
We don’t invoice the first planset.
One free project · explore the proposed pricing and included downloads.