Skip to main content

    Professional ElectricalEngineering Calculators

    Available Calculators

    Load Calculation

    Estimate diversified and maximum demand for buildings using repository-labelled planning factors.

    • Diversified demand calculations
    • Standards-reference screening
    • Automatic load scheduling
    • Mixed-use development support
    Open Calculator

    PV Sizing

    Plan solar PV systems with regional yield estimates, financial projections, and G98/G99 capacity screening.

    • Regional yield estimation
    • Financial payback analysis
    • G98/G99 capacity screening
    • Self-consumption modeling
    Open Calculator

    Battery Sizing

    Size battery storage systems with backup duration calculations, grid-tie configurations, and lifecycle costing.

    • Backup duration calculations
    • Grid-tie & off-grid configs
    • Lifecycle cost analysis
    • Installation review prompts
    Open Calculator

    Containment Sizing

    Plan cable tray and containment sizes with fill, simplified thermal screening, and support-span guidance.

    • Simplified thermal screening
    • Fill factor optimization
    • Support-span guidance
    • Generic tray selection
    Open Calculator

    Cable Calculations

    Size cables with voltage drop analysis, current carrying capacity, and protection coordination.

    • Voltage drop analysis
    • Current carrying capacity
    • Protection coordination
    • Fault level calculations
    Open Calculator

    More calculations coming soon

    Why Choose Voltra?

    Planning tools designed to support your electrical design workflow

    Quick Start Guide

    Get started with Voltra in just 5 simple steps

    Get in Touch

    Have a question, found a bug, or want to request a feature? We'd love to hear from you.