Elecas
A suite of AS/NZS-compliant electrical design calculators that runs in the browser, works offline, and produces standards-referenced reports engineers can put their name to.
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The Client
ElecAS is an Australian electrical design calculator suite built for engineers, designers, estimators and contractors working to AS/NZS standards. It encodes AS/NZS 3000:2018 and AS/NZS 3008.1.1:2025 into interactive tools that handle the calculations an electrical designer would otherwise run through spreadsheets and printed tables.
The audience is technical and unforgiving. These are people who will check the working, so every result has to be traceable back to the clause and formula it came from.
The Brief
Turn a body of standards-based engineering calculation into a set of tools that are fast enough to use on a live job, and rigorous enough that the output can be attached to a design submission.
The platform also had to work where the work happens — on site, on a phone, frequently without a usable connection.
What We Built.
18+ calculation tools
Cable sizing, voltage drop and rise, maximum demand across Tables C1–C3, conduit fill, cable tray sizing, earthing, derating, power factor correction, UPS and generator sizing, and lighting design — each one a self-contained tool with its own inputs, validation and result set.
Real cable database
380+ actual Prysmian Australia and Olex catalogue products, so a designer selects the cable they will genuinely order rather than a generic conductor size that has to be translated later.
Standards-referenced PDF reporting
Every calculation exports to a branded PDF that cites the specific clauses and formulas behind the result, which is what makes the output usable as design documentation rather than a scratch calculation.
Offline-capable progressive web app
The suite installs to a device and keeps working without a connection, because site work does not reliably come with reception.
EleCAD single-line diagram builder
A companion tool inside the suite for building single-line diagrams, so schematic work sits alongside the calculations instead of in a separate application.
Tiered accounts
A free tier covering the calculators and reporting, with paid Pro tiers adding cloud sync and collaboration across a project team.
Built With
- React
- TypeScript
- Progressive Web App
- Firebase
- Cloud Firestore
- PDF generation
Services Used
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