// Done-for-you · off-grid · RV · marine
We draft your permit set.
You ship it.
Send photos and a parts list. Our team designs the system in CircuitProof and delivers a code-cited, permit-ready PDF — wire sizing, voltage drop, overcurrent, one-line — against NEC or ABYC, in ~5 business days.
$499 one-time · ~5 business days · 7-day money-back
Rev A · NEC 690 / 706 / 710
how it works
Photos in. Permit set out.
Send
Upload build photos and a parts list, pick your jurisdiction (NEC or ABYC), and tell us the intended use. Two minutes of input.
We draft
Our MarinePowerLab team models the system in CircuitProof — every wire sized, voltage drop and overcurrent checked, one-line drawn — then reviews it by hand before it leaves.
You receive
An unwatermarked, permit-ready PDF plus an editable CircuitProof project you can revise yourself. In ~5 business days.
what you get
A permit-ready set — not a chat answer.
- 01Cover + project header
- 02Executive summary
- 03One-line schematic
- 04Bill of materials (SKUs)
- 05Wire-sizing calculations
- 06Voltage-drop analysis
- 07Overcurrent protection
- 08Compliance checklist
- 09References + AI summary
| Qty | Component | Spec | Basis |
|---|---|---|---|
| 1 | Solar array | 2 kW · 6× 370 W | NEC 690.8 |
| 1 | MPPT controller | 60 A | 690.8(B) |
| 1 | LiFePO₄ bank | 48 V · 280 Ah | NEC 706 |
| 1 | Class-T fuse | 300 A | NEC 240.6 |
Every wire run is sized to ampacity and cited to its clause · same engine that drives the free calculator
Start an order — $499who it's for
Built for the people who get inspected.
Solar + battery installers
Outsource the permit paperwork on each job. You quote and install; we draft the code-cited set your AHJ and insurer want to see.
Off-grid + RV / van builds
Cabins, Sprinters, skoolies — NEC 690 / 706 / 710 done right, so the inspection isn't the thing that stalls the build.
Marine refits (US + Canada)
ABYC E-11 wiring, sizing, and overcurrent for the surveyor and the underwriter — drafted by a working marine electrical tech.
common questions
How long does it take?+
About 5 business days from when we have your photos and parts list. Tell us if you're up against a deadline and we'll flag it.
What codes do you cover?+
NEC 690 / 706 / 710 for US off-grid, PV, and energy storage, and ABYC E-11 for marine (US and Canada). If you need a code we don't cover yet, ask before you order.
Is this a P.Eng / PE stamp?+
No. It's design documentation generated from your input and published codes, reviewed by a working electrical tech. It does not replace a stamp where one is required — verify with a licensed professional before installation.
What do I have to send?+
Build photos, a parts list (panels, batteries, inverter, controller, loads), the jurisdiction, and the intended use. The more detail, the tighter the set.
What if it's not right?+
7-day money-back guarantee. You also get the editable CircuitProof project, so revisions are quick.
Send the build. We'll draft the proof.
$499, ~5 business days, 7-day money-back. Or design it yourself with the free calculator.