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Try Flux free

Find out what makes your building use less energy.

Test a better window. Add some shade. Ask Flux to change your model and run the simulation, so you can see what makes a difference.

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Start with your building.

PDF · DWG/DXF · IFC · 3DM · SKP · OBJ/glTF · IDF/epJSON · EPW · images · CSV/XLSX · or an address.

flux.urbanflow.co
3dmUntitled project
ModelHVACWeatherRunsResultsFiles
Building with
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Ready when you areYOUR DESIGN. YOUR JUDGEMENT.

Scroll to unfold the workflow ↓

With thanks to Beth Khoo for generously donating her work for this showcase.
Real geometry and saved unit sun-screening findings · Runs are illustrative. Cooling savings remain unverified.

AI does the model work.
You keep the final say.

When a client asks why you recommend a change, you need more than an answer. Open the model, check the inputs and go back to the simulation results.

01

See what the model assumes

Inspect the geometry, materials and settings that shape the result.

02

Keep the calculations grounded

EnergyPlus runs the simulation. Flux helps you work with its inputs and outputs.

03

Choose with the evidence in view

Compare saved runs and review warnings before making a recommendation.

Start with one building.
And one good question.

Free

$0

Get to know Flux with your own model.

  • A monthly AI allowance
  • EnergyPlus simulations and results
  • Project files in a local folder
Try Flux free Use Chrome or Edge to link a local folder.

Pro Coming soon

More room to explore

For regular modelling work.

  • A larger monthly AI allowance
  • Access to more AI models
  • 100 GB of cloud project storage
Start on Free Pro pricing will be announced.

Enterprise

Let’s talk

For organisations with specific needs.

  • Discuss your modelling workload
  • Plan your storage and usage needs
  • Talk through procurement
Contact us We’ll help you work out the right fit.

Before you
bring a building.

What does an energy model do?

It is a digital version of a building. It describes things like walls, windows, heating, cooling and how people use the space. A simulation uses that model and local weather data to estimate how the building will perform.

Who is Flux for?

Flux is built for building energy modellers and sustainability consultants who prepare models, test design changes and explain results to clients or design teams. Architects and people learning energy modelling can use it to explore questions too. You still need to review the model and its assumptions.

What can I start with?

Bring an EnergyPlus model (IDF or epJSON), a building model in IFC format, or a floor plan. Flux can work with an existing energy model or help build one from your reference files. Drawings and IFC files need interpretation, so check the geometry and assumptions before running.

Where do the numbers come from?

EnergyPlus calculates the simulation results from your model and weather data. The AI helps prepare the model, run simulations and explain the outputs. Check the inputs, warnings and saved results before using them in a recommendation.

Can I use Flux for a compliance submission?

Flux helps with modelling and design comparisons. It does not provide an automatic compliance sign-off. A qualified professional should check the model and results against the requirements for the project.

What would you change
about your building?

Find out with Flux