Calculator
Lighting Cost Calculator
Compare old bulbs with LEDs including replacements.
Open calculatorCalculators
Electricity cost calculators
Run a clear first pass on rental, renovation, commercial, short-term, and development deals.
Calculator
HVAC Running Cost Calculator
Estimate heating and cooling cost for any period.
Open calculatorCalculator
Demand Charge Calculator
Isolate the demand portion of a commercial bill.
Open calculatorCalculator
Commercial Electricity Cost Calculator
Split a commercial bill into energy, demand, and fees.
Open calculatorCalculator
Time-of-Use Rate Plan Comparison
Test whether a time-of-use plan beats your flat rate.
Open calculatorCalculator
EV Charging Cost Calculator
Compare home and public EV charging against gasoline.
Open calculatorCalculator
Solar System Size Calculator
Size a solar array from your usage and sun hours.
Open calculatorCalculator
Solar Panel Payback Calculator
Estimate solar savings, payback, and 25-year net benefit.
Open calculatorCalculator
Vampire Load Calculator
Measure standby power drain and its yearly cost.
Open calculatorCalculator
Appliance Energy Cost Calculator
Find which appliance costs you the most to run.
Open calculator