Reactive Power VAR Calculator
When you use electricity, there’s something called reactive power that’s invisible. On your electricity bill, you only pay for kilowatt …
Mike Lee
Apparent Power VA Calculator
Why do we buy an inverter, or a UPS, for our home office? We want peace of mind during a …
Energy Per Cycle Calculator
Your monthly electricity statement doesn’t tell a very clear picture of how your house is using all that juice. Sure, …
Motor Starting Current Calculator
When designing an electrical system, don’t assume a normal operating load. Calculate it for the amount of current required when …
HP to Watts Converter
Look on nameplate of any electric motor and you will read something like half horsepower. Half? That doesn’t seem very …
Single Phase Amps Calculator
Plug in that new space heater and suddenly the lights starts to flicker? Your electrical panel’s full! Until an appliance …
Three Phase Power Calculator
If all you want to do is determine whether your new HVAC unit trips a breaker, three phase power can …
Solar Battery Autonomy Calculator
A lot of people think that 200 amp hours lasts through a night of storms, but they’re typically wrong. Yes, …
Solar String Voltage Calculator
Never begin by trying to use a panel count. The math rarely align like this, and here’s why: You may …
Solar Charge Controller Amps Calculator
The roof panels always come first. That’s where the magic happens. Measure it. Count the number of module that will …