Sailboat electrical, done to ABYC E-11
The same math a marine electrician would charge you $1,200 for — in a tool you drive yourself. Full ABYC E-11 wiring, multi-source charging, and surveyor-ready reports.
ABYC E-11 built in
Wire gauges, voltage drop, fuse sizing, ampacity — all referenced to ABYC E-11 §11.10 and §11.14.
Multi-source charging
Solar + alternator + wind + shore, modeled together. See exactly when each source is pulling its weight.
Liveaboard duty cycles
Fridge, watermaker, windlass, nav electronics, lights — with honest duty cycles that match passage-making.
Surveyor-ready PDFs
Your surveyor wants a one-line diagram, a load schedule, and wire runs. That’s the permit-ready PDF.
Typical loads we already model
These are realistic watt draws and duty cycles pulled from the PowerLab appliance catalog. When you start a design, you pick from this catalog and customize \u2014 nothing to re-type.
| Load | Watts | Hrs/day | Wh/day |
|---|---|---|---|
| DC fridge / freezer | 55 | 12 | 660 |
| Navigation electronics | 30 | 24 | 720 |
| Anchor light | 10 | 10 | 100 |
| Autopilot (underway) | 40 | 8 | 320 |
| Watermaker | 400 | 1.5 | 600 |
| LED cabin lights | 30 | 5 | 150 |
| Windlass (brief peak) | 1,500 | 0.1 | 150 |
| Sample total | 2,700 Wh/day |
Typical real-world band for this niche: 1,000\u20134,000 Wh/day (midpoint 2,500). Your actual number depends on your gear and how you use it; PowerLab calculates it exactly.
Ask these once your design is loaded
PowerLab Co-Pilot sees your exact design and can answer questions in plain English. Starter prompts for this niche:
- \u203aIs my main battery fuse ABYC-compliant for my LiFePO4 bank?
- \u203aWill my alternator keep up with daily draw during a coastal passage?
- \u203aSize my watermaker pump wire run from the panel to the pump.
Frequently asked
Does this replace a marine electrician?
No — but it saves you four billable hours of back-and-forth. Bring the PowerLab report to your electrician and you’ll cut your project budget by 30% or more.
What about ABYC E-13 for lithium?
We cite E-13 in compliance-check warnings (BMS, low-temp cutoff, emergency disconnect) but the actual ABYC E-13 cert is a separate vendor program. PowerLab gets you to an E-13-aware design, not a stamped one.
Can I take this to a marine surveyor?
Yes. The permit-ready PDF is designed to be exactly what a surveyor or insurer would ask for — load schedule, OCPD schedule, conductor schedule, and code references.
Design yours in the next 10 minutes
Free tier gets you load + battery + solar sizing for up to 3 designs. No credit card required. Upgrade when you need the Co-Pilot, live BMS monitoring (Victron live today), or permit-ready PDFs.
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