Energy Calculators
All tools run in your browser. No signup required. Your data never leaves your device.
Home Energy Bill Breakdown
Input your monthly total and see exactly how much HVAC, water heating, lighting, and appliances are costing you. Includes annual projections.
Open CalculatorSolar Panel ROI Calculator
25-year financial model with federal 30% tax credit, state incentives, local electricity rates, and net metering scenarios. Interactive payback chart.
Open CalculatorHVAC Efficiency Upgrade Analyzer
Compare your current SEER rating against upgrades. Enter home size and climate zone to calculate upgrade cost, annual savings, and payback period.
Open CalculatorLED Lighting Upgrade Savings
Enter existing bulb count, wattage, and daily usage. Compare LED alternatives and get annual savings plus CO2 reduction estimates.
Open CalculatorInsulation ROI Calculator
Attic, wall, and basement insulation analysis. Input current R-value, target R-value, and climate zone. Get material costs and annual heating/cooling savings.
Open CalculatorTime-of-Use Rate Optimizer
Input your utility's time-of-use plan. Analyze load-shifting potential for washers, dryers, EV charging, and dishwashers. Includes battery storage economics.
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