Load flow analysis — see it in action
Build a simple system and watch bus voltages, branch currents, and voltage drop appear in real time. Change a load, add a cable, modify a transformer — and see the entire system respond.
What you get
Connect a source and load — bus voltages appear immediately. No study configuration needed.
Current flow in every branch shown on the diagram. See where power flows.
Trace voltage drop from source to load across every cable and transformer in the path.
Place additional loads and watch voltages change throughout the system.
Change cable length and see voltage drop increase at downstream buses.
The fastest way to understand load flow is to interact with a live model.
Understand load flow by interacting with it
Reading about Newton-Raphson iteration is one thing. Watching bus voltages change as you add loads to a live model makes the concepts intuitive.
- Start with a source and one load — voltages appear immediately
- Add more loads and observe how voltages change system-wide
- Change cable lengths to see voltage drop effects
- Compare different configurations to build intuition
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/month for unlimited access.
View All PlansFrequently asked questions
A utility source, one transformer, one cable, and one load. Bus voltages and voltage drop calculate instantly.
Yes. Voltage drop across every cable is calculated and displayed as part of the load flow analysis.
Yes. The free tier includes 1 project with 2 buses — enough for a basic source-transformer-load example.
ekx uses Newton-Raphson iteration, the same method described in power systems textbooks. Results should match for equivalent system models.
Build a system. See voltages. Understand load flow.
Interactive load flow analysis. Build and observe.
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