Solar Design Calculators

Solar System Size Calculator

Calculate the optimal solar system size based on your daily energy consumption and location.

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Panel Quantity Calculator

Determine how many solar panels you need based on your system size and panel wattage.

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Roof Area / Panel Fit Calculator

Calculate how many solar panels can fit on your roof based on dimensions.

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Solar Tilt Angle Calculator

Find the optimal tilt angle for your solar panels based on your location in Australia.

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Solar Azimuth Angle Calculator

Calculate the optimal panel orientation and efficiency loss for different roof directions.

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Inverter Sizing Calculator

Calculate the recommended inverter size based on your solar panel array capacity.

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DC/AC Ratio Calculator

Calculate the DC to AC ratio and estimate potential clipping losses for your solar system.

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String Sizing Calculator

Calculate optimal string configuration based on panel specs and inverter MPPT range.

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Voltage Drop Calculator (AC & DC)

Calculate voltage drop for solar cables according to AS/NZS 3008 standards.

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Cable Size Calculator (AS/NZS)

Determine the minimum cable size required based on current and voltage drop limits.

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Shading Loss Calculator

Estimate production losses due to shading on your solar panels.

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Performance Ratio Calculator

Calculate the performance ratio (PR) of your solar system to assess its efficiency.

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Solar Irradiance Estimator

Get estimated solar irradiance data for your postcode based on BOM historical data.

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Energy Offset Percentage Calculator

Calculate what percentage of your electricity usage will be offset by solar.

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Panel Temperature Coefficient Calculator

Calculate power output loss due to panel temperature.

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Battery Size Calculator

Calculate the optimal battery storage capacity for your home based on usage patterns.

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Backup Duration Calculator

Calculate how long your battery will last during a blackout.

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Battery ROI Calculator

Calculate the return on investment for adding battery storage.

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Solar + Battery Payback Calculator

Calculate the combined payback period for a solar and battery system.

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Self-Consumption Calculator

Calculate your solar self-consumption rate with and without battery.

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Depth of Discharge Calculator

Understand optimal depth of discharge for different battery chemistries.

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Battery Degradation Calculator

Estimate battery capacity degradation over time.

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VPP Income Estimator

Estimate potential income from participating in a Virtual Power Plant.

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Battery Rebate Calculator (BSTC)

Calculate Battery Small-scale Technology Certificates rebate under Australian scheme.

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Solar ROI Calculator

Calculate the return on investment for your solar system installation.

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Solar Payback Period Calculator

Calculate how long it will take for your solar system to pay for itself.

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25-Year Savings Projection Calculator

Project your total savings over the 25-year lifespan of your solar system.

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Feed-in Tariff Income Calculator

Calculate your expected income from exporting excess solar to the grid.

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STC Rebate Calculator

Calculate Small-scale Technology Certificates (STC) rebate for your solar installation.

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LGC Calculator (Commercial)

Calculate Large-scale Generation Certificates for commercial solar installations.

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Solar Loan EMI Calculator

Calculate monthly loan repayments for financing your solar installation.

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Cash vs Finance Comparison Calculator

Compare the financial outcomes of paying cash versus financing your solar system.

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Price Per Watt Calculator

Calculate and compare solar system prices on a per-watt basis.

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Electricity Bill Offset Calculator

Calculate how much your electricity bill will decrease with solar.

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Tariff Inflation Impact Calculator

See how rising electricity prices increase the value of solar over time.

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STC Zone Auto Calculator

Automatically determine your STC zone rating based on your Australian postcode.

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DNSP Export Limit Calculator

Check the export limits set by your Distribution Network Service Provider.

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State Solar Rebate Finder

Find available state government solar rebates and incentives for your location.

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State Battery Rebate Calculator

Find state government battery rebates available for your location.

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Feed-in Tariff Comparison Tool

Compare feed-in tariff rates offered by different retailers in your state.

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Postcode-Based Irradiance Calculator

Get detailed solar irradiance data for your specific Australian postcode.

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CO₂ Savings Calculator (Australia)

Calculate your carbon emissions reduction based on Australian grid emission factors.

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Small Business Solar Incentive Calculator

Calculate instant asset write-off and other incentives for business solar.

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Peak Demand Reduction (NSW PDRS)

Calculate Peak Demand Reduction Scheme certificates for NSW solar installations.

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Solar Homes Program (VIC)

Calculate eligibility and rebate amount under Victoria Solar Homes Program.

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Maximum Demand Calculator

Calculate maximum demand for your property using AS/NZS 3000 diversity factors.

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AC Load Calculator

Calculate your total electrical load and daily energy consumption.

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Circuit Breaker Size Calculator

Determine the correct circuit breaker size for your solar installation.

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Switchboard Upgrade Calculator

Assess whether your switchboard needs upgrading for solar installation.

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Earthing Size Calculator

Calculate the required earth conductor size per AS/NZS 3000.

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Export Compliance Estimator

Check if your system complies with local export limits and requirements.

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Job Profitability Calculator

Calculate profit margin and profitability for individual solar installation jobs.

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Gross Margin Calculator

Calculate gross margin percentage for your solar business.

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Cost Breakdown Calculator

Analyze and break down costs for solar installation projects.

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Customer Acquisition Cost Calculator

Calculate how much it costs to acquire each new solar customer.

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Sales Commission Calculator

Calculate sales commissions based on job value and commission structure.

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Lead-to-Close Ratio Calculator

Track and analyze your sales funnel conversion rates.

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Break-Even Calculator (Solar Business)

Calculate the break-even point for your solar installation business.

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Installer Productivity Calculator

Measure and track installer team productivity metrics.

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Marketing ROI Calculator

Calculate return on investment for your marketing campaigns.

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