Blog

Calculate generator operating cost per kWh using matched fuel, load, runtime, and maintenance records while keeping ownership costs separate.

Estimate air-conditioner generator demand from actual input and starting data, and understand why Btu capacity divided by SEER is only preliminary.

Calculate compressor, blower, and auxiliary-heater demand separately to estimate generator capacity for realistic winter heat-pump operation.

Find reliable starting-demand data, interpret current and kVA correctly, and calculate motor startup scenarios without double-counting running watts.

Build an essential-appliance worksheet, calculate realistic running and starting loads, and understand the assumptions behind a household generator estimate.

Calculate welder input demand, understand duty cycle, and compare generator estimates with maximum input ratings before choosing a power source.

Size welder generator power using AC input specifications, output-based estimates, efficiency, power factor, and simultaneous jobsite loads.

Calculate true generator kW loading, separate kVA and reserve calculations, and distinguish instantaneous demand from average utilization.

Calculate combined parallel-generator power while checking running ratings, compatibility, outlet limits, derating, and operating reserve.

Calculate natural-gas generator CO2 per kWh from efficiency and a documented fuel factor, with clear mass and energy units.

Estimate direct diesel-generator CO2 from fuel burned or load and hours, with documented factors and checked units.

Find generator oil capacity by exact model, understand refill quantities, and use the correct dipstick procedure before adding oil.

Calculate belt-driven generator pulley ratios from pole count, frequency, shaft speeds, and working pulley diameters.

Find conventional generator rpm from frequency and pole count, and understand why inverter generators use different engine speeds.

Calculate mobile-home electric heat backup from element kW, blower demand, staging, household loads, and generator limits.

Size mobile-home backup power from appliances, electric heat, pump starts, voltage, and a realistic outage schedule.

Estimate generator gallons per hour by fuel and load, then improve the result with manufacturer curves and measured consumption.

Compare charger amp settings on one bank and see how net current, charge limits, absorption, and generator capacity change charging time.

Size generator capacity for a battery charger using actual charging voltage, AC input watts, power factor, and other connected loads.

Compare generator charging to 80% and 100% using missing amp-hours, charging stages, net current, and chemistry-specific limits.

Estimate generator battery charging time from missing amp-hours, net charger current, chemistry, and realistic charging-stage limits.

Understand generator breaker trips during motor starts, avoid double-counting surge watts, and compare loads with actual starting capability.

Estimate generator output current from kW and understand continuous factors, extra margins, and the limits of breaker-sizing calculators.

Convert generator kW to current and estimate copper cable area while keeping voltage drop, ampacity, and phase limitations clear.

See how generator cable length changes voltage drop and copper area, with a worked example and final sizing checks.

Measure natural gas generator consumption with timed meter readings, appliance corrections, and a load-based comparison.

Read diesel generator fuel charts, select the correct load column, and convert hourly fuel rates into L/kWh and shift consumption.

Convert natural gas generator consumption into therms, distinguish gas billing units, and estimate incremental fuel cost with a worked example.

Estimate natural gas generator cubic feet per hour from electrical load, efficiency, and gas heat content, with a worked calculation.

Calculate usable propane from tank gauge readings or cylinder weight, then subtract reserve and shared appliance demand before estimating generator runtime.