System Design

Electrical system design with analysis built in

Design tools draw pictures. Analysis tools run numbers. ekx does both at once. Draw the one-line diagram and get load flow and equipment sizing as you design, and short circuit in one click.

What you get

Design and analysis together

The one-line diagram IS the analysis model. Build once, get results immediately.

Equipment sizing as you go

Cables, breakers, and transformers size per NEC as you connect them.

Fault current awareness

Short circuit runs on the model you drew in one click. No separate study setup.

Voltage verification

Load flow shows bus voltages and voltage drop as you add loads and cables.

Professional output

Export one-line diagrams and study reports for client deliverables.

Iterative design

Change any parameter and see the system-wide impact instantly. Design iteratively.

Design and analysis in one workflow

Traditional electrical design means: draw the one-line, manually enter data into analysis software, run studies, go back and update the drawing. ekx eliminates the back-and-forth.

  • Draw the one-line — analysis runs on the diagram automatically
  • Equipment sizes as you connect — no separate sizing step
  • Voltages visible as you design, fault currents one click away
  • Change the design, see updated results instantly

Start free. Upgrade when you need more.

Free tier includes 1 project with up to 2 buses. Paid plans start at $27/month for consultants and $149/user/month for unlimited access.

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Frequently asked questions

Do I need separate design and analysis tools?

No. ekx combines the one-line diagram (design) with short circuit, load flow, and equipment sizing (analysis) in a single tool.

Is it suitable for real projects?

Yes. ekx uses the IEC 60909 method for short circuit, Newton-Raphson for load flow, IEEE 1584-2018 for arc flash, and NEC 2026 for equipment sizing. Results should be reviewed by the engineer of record.

Can I export deliverables?

Yes. Export one-line diagrams as PDF, generate study reports, and create professional documentation for client deliverables.

How large a system can I design?

The Professional plan supports unlimited projects and buses. Design systems from a single panel to a complete industrial facility.

ekx

Design and analyze in one tool.

One-line diagram with built-in short circuit, load flow, and sizing.

Start freejoinekx.com