Compatibility calculator — how to calculate yourself (tool coming soon)

What the tool will calculate

• Panel: Voc STC, Vmp, Imp (from datasheet).
• Device: MPPT min–max V, max A/port, port count, max solar W.
• Cold Voc estimate: Voc_STC × 1.10 (refinable with temperature).
• String options: series/parallel combinations, realistic W estimate.
• Hazard: cold Voc > max MPPT, Imp > A/port, Vmp drop-out.

Not affiliate, not "top 10". The goal: work out your own hardware, safely.

Paper + calculator for now

1. Write down cold Voc per string.
2. Check: cold Voc < max MPPT, Vmp > min MPPT (at planned temperature).
3. Parallel: Imp sum ≤ A/port × ports.
4. Series: panel count × cold Voc < max.

Coming soon

The site will get an interactive compatibility tool — same logic, with a pre-filled device database. Register to be notified when it goes live.

Important

This article is for information and brainstorming purposes. It is not electrical, engineering, or legal advice, and it does not replace a qualified professional or local regulations.
Portable power station, extension-cord, and "plug and play" solutions have limits. What we describe here is based on our own experience and general technical considerations — your panel, device, cable, and site may differ. A poorly calculated voltage (especially in cold weather) can cause permanent damage without warranty coverage.
Working on electrical equipment can be life-threatening and is often not a DIY job. If you are unsure, or the work goes beyond extension-cord use (fixed wiring, earthing, RCCB, household grid), stop and hire a professional.
The calculations, examples, and calculators shared here are not guarantees of yield, payback, or safety. Implementation, risk, and consequences are yours.

• voltage window
• voc
• vmp
• compatibility