Don't order a planset. Design one.
The engineering judgment of an experienced PE, built into the tool. The SLD, the calcs, and per-county AHJ checks run live as you draw. Permit-ready in minutes.
4,000+ plansets permitted, most across Florida.
$40/ planset
If you can design it, that's the price. Any county. Revisions included.
Quick application · most approved within a day.
- 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.
Your drafter.
Your project manager just became your drafter.
One tool. Installers and engineers. Same engine either way.
You design the planset; the platform does the engineering. Pay per planset. No subscription, no minimums.
Per planset
$40/ planset
Full engineering: SLD, electrical, structural, AHJ checks. Revisions included. Use it for one project or a hundred.
Commercial & complex
Quoted
Multi-family, large systems, battery-heavy, generator. Request a custom design and we’ll quote it.
Need it stamped? Request a PE stamp right inside the app, and we’ll handle the rest.
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.
Most planset tools are missing pieces. Some skip structural, some skip electrical, some leave the AHJ rules to you.
We ship the complete packet in one engine. Structural, electrical, roof layout, AHJ rules per county.
The actual engine, not a demo. The same one that produces permit-ready plansets every day.
Wire sizes, OCPDs, ground paths derive live from the design. The design check engine catches what’s missing before the AHJ does.
Any topology
Microinverter + string + battery + supply-side tap, on the same canvas, in minutes.
Live electrical correctness
Wire sizing, OCPD propagation, ground inclusion, voltage drop. All derived from the design itself, not hand-entered.
No template lock-in
New equipment drops into the database and connects to everything else the next day.
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.
Real support, built in.
Not a ticketing system. Not an email thread. Not a portal that emails you to log into another portal. Hit a weird main-panel upgrade, a code question, an unusual layout? You get a real answer from a real solar engineer. Fast, in the workspace.
Expert help · In-app messaging · Live status · All your projects in one place.
312 Maple St
Project #2418 · Residential
Ryan G., PE
2:14 PM
The engine flagged your supply-side tap, the conductors are short of the 10-ft rule.
2:31 PM
You
Ah. What’s the cleanest fix?
Ryan G., PE
2:38 PM
Upsize the tap conductors and re-run the check. That’ll clear it.
3:05 PM
You
Done. All green. Submitting.
AHJ rejects on something the engine missed? We fix it free.
Over 90% of plansets pass the AHJ first try. If a planset built on our engine gets kicked on a code issue we should have caught, we fix it at no cost. Same day. No invoice.
Where we work
Florida is home base. Projects welcome from anywhere.
The free comparison
Bring us your last planset.
Built for the everyday residential roof mount you do every week. The job that shouldn’t take 3 days. Send us one you recently paid for, we’ll rebuild it on the platform, record a 5-minute walkthrough, and hand it back so you can compare.
Standard residential · roof-mount · Q Cells or microinverters · Tesla battery or solar-only · up to 15 kW · Florida
FAQ
The questions everyone asks.
How is this different from Aurora or GreenLancer?
Different jobs. Aurora is a sales tool: production estimates, consumption offsets, proposal renders. GreenLancer is an outsourced design service: you send the project out and wait for it to come back. SDL is the permit-engineering layer you run yourself: the SLD, conductor schedule, structural, and AHJ checks generate live as you design. Plenty of shops keep Aurora for selling the job and use SDL to engineer it.
I'm an engineering firm. Can I use this for my own projects?
Yes. Engineers run their own projects through the same engine installers use: full SLD, electrical, structural, and live AHJ checks, all derived from the design. Your projects, your clients, your stamp. Same $40 per planset.
Do you offer stamps, or just the design tool?
The tool is the product. $40 buys the design and engineering. If you're an installer and need a stamp, request one inside the app and we'll handle it as a separate service, priced separately. If you're an engineer, you stamp your own work. The tool just gets you there faster.
Is the first planset really free?
Yes. Design your first planset, no charge, no credit card. If the platform doesn't beat what you're doing now, you've lost nothing.
Why do I have to apply for access?
Every account gets reviewed by our team. The platform produces real engineering documents and the support comes from real engineers. We keep the user base professional so both stay that way. Most accounts are approved within one business day.
What if the engine gets something wrong?
If a planset built on our engine gets kicked by the AHJ on a code issue we should have caught, we fix it free. Same day, no invoice. It doesn't happen often: first-pass approval runs over 90%. And if you hit something unusual before you submit, there are real solar engineers in the workspace to check it with you.
What about projects outside Florida?
The platform works everywhere. Design any project, any state. The automatic AHJ checks are deepest in Florida today and expanding state by state. Need a stamp outside Florida? Ask, and we'll tell you straight whether we can cover it.
Can I get on the phone with someone?
Yes. Twenty minutes, your real project, no pitch deck. The slot you book is on a real engineer's calendar.
Try one. Either it beats what you have or it doesn’t.
We don’t invoice the first planset.
Quick application · most approved within a day.