Reactive Energy Converter

Simplify Reactive Energy Calculations

Reactive energy (measured in kVARh) is a critical component of industrial utility billing, representing the non-working energy that cycles back and forth in an AC system. Our Reactive Energy Converter is designed for energy managers, auditors, and electrical engineers who need to translate between VARh, kilovar-hours (kVARh), and megavar-hours (MVARh) without manual math errors.

Whether you are verifying utility meter readings, sizing capacitor banks for power factor correction, or analyzing monthly energy reports, this tool ensures you have the correct units. By standardizing your data, you can better understand your facility's efficiency and potential penalties.

How to Use

1. Input Data: Enter your measured reactive energy figure into the "From" field.
2. Select Scale: Choose the source unit (e.g., kVARh) and the destination unit (e.g., MVARh) from the menus.
3. Calculate: Click "Convert Energy" to generate the precise value instantly.
4. Copy: Use the "Copy Result" button to transfer the data to your spreadsheets or reports.

Frequently Asked Questions

What is meant by reactive energy?

Reactive energy is the total "non-working" energy consumed over time, measured in kVARh. Unlike active energy (kWh), it sustains magnetic fields in inductive loads but does not perform useful work like heating or lighting.

What is the difference between active energy and reactive energy?

Active energy (kWh) is the energy you actually use to run equipment. Reactive energy (kVARh) is the energy required to magnetize motors and transformers. You pay for active energy, but you may be penalized for excessive reactive energy.

What is an example of a reactive power?

The power drawn by an induction motor to create a magnetic field is reactive power. While it doesn't turn the shaft (that's active power), the motor cannot operate without it.

How to generate reactive power?

Capacitor banks are the most common source. They generate reactive power locally to offset the reactive power consumed by inductive loads, improving the system's power factor.

How to reduce reactive power?

Install power factor correction equipment (capacitors) near inductive loads. This supplies reactive energy locally, reducing the amount drawn from the utility grid and lowering energy losses.