Calculator
Generator Noise vs Distance
Sound level at a neighbor's window, with distance attenuation and any barrier you add, against the local limit.
Open calculatorCalculators
Generator calculators
Load lists, sizing, fuel and runtime, installation budget, running cost, and maintenance, each with visible math.
Calculator
Placement & Clearance Checker
Check the clearances that actually matter: combustible construction, building openings, and the 20 foot carbon monoxide guidance.
Open calculatorCalculator
Generator Feeder Wire & Voltage Drop
Conductor size from NEC ampacity, then voltage drop over the real run length, in copper or aluminum.
Open calculatorCalculator
Generator Pad & Foundation Calculator
Concrete volume, bag count, weight, and cost for a pad, from the dimensions you already have.
Open calculatorCalculator
Portable Generator Backup Cost
What a safe portable setup really costs: interlock or inlet, cord, changeover hardware, fuel reserve, and an electrician.
Open calculatorCalculator
Home Standby Installation Cost
Itemized budget for a home standby install: equipment, transfer switch, electrical run, gas line, pad, permit, and labor.
Open calculatorCalculator
Generator Emissions Estimator
CO2 and NOx for a year of generator hours, compared with the same energy from the grid.
Open calculatorCalculator
Tank Fill & Top-Off Cost
What a fill actually costs, what delivery saves over the pump, and how often a fill has to happen.
Open calculatorCalculator
Fuel Quality & Polishing Schedule
Shelf life, test interval, treatment frequency, and polishing hours for stored fuel that has to work on the worst day.
Open calculatorCalculator
Fuel Type Cost Comparison
Diesel, propane, natural gas, and gasoline side by side on the same load and the same hours, in dollars per hour and per year.
Open calculator