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Usage Comparator
Compare two usage scenarios side by side.
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Electrical calculators
Load, circuits, rates, solar, EV charging, and commercial power, each with visible math.
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Peak Demand Cost Estimator
Estimate demand-charge impact on commercial-style bills.
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Standby Power Audit
Audit vampire loads across devices.
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Smart Thermostat Savings
Estimate smart thermostat annual savings.
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Insulation ROI Calculator
Estimate insulation payback from heating savings.
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Heat Pump Savings Calculator
Compare heat pump vs furnace annual cost.
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Appliance Replacement Savings
Decide repair vs replace with payback math.
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LED Savings Calculator
Compare LED vs incandescent annual savings.
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Generator Runtime Calculator
Estimate generator runtime from fuel tank.
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Generator Fuel Cost Calculator
Estimate generator fuel cost per hour and per day.
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Home Battery Sizing Calculator
Size home battery for outage backup.
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Battery Capacity Calculator
Size battery capacity (kWh) for a backup need.
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