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Choosing the Right DG Set Capacity for Efficient Power Backup
Category: Generator Selection Guide, Posted on: 03/04/2026 , Posted By: Dusane Engineering
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How to Choose the Right Generator Capacity for Your Needs⚡

Selecting the correct generator capacity is essential to ensure uninterrupted power supply, avoid downtime, and optimize fuel efficiency. Choosing an undersized or oversized generator can lead to performance issues and increased operating costs.

The first step is to calculate the total load requirement by adding the power consumption of all machines and equipment that will run on the generator. This gives a clear idea of the base power needed for your operations.

It is also important to consider the starting surge of equipment such as motors and compressors, which require additional power during startup. Ignoring this factor can result in insufficient performance and system overload.

To ensure reliability, a safety margin of 20–25% should be added to the total load. This helps accommodate future expansion and prevents overloading of the generator.

Finally, convert the total load from kilowatts (kW) to kilovolt-amperes (kVA) using the standard formula:
kVA = kW ÷ 0.8

Choosing the right generator capacity ensures smooth operations, reduces downtime, and improves overall efficiency.

Dusane Engineering, an authorised dealer of Kirloskar Powergen, provides generator supply and expert consultation to help you select the most suitable power backup solution.

For more information, contact:

Dusane Engineering
📞Phone: +91-9823052557 / 0253-2379527
✉️Email: sales@dusaneengineering.com
📍Address: Shop No 11, First floor, Sai Plaza, Lekha Nagar, Opp to State Bank, Nashik- 422009

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