Scale faster, integrate smarter

Build the BESS solutions your customers need with DEIF energy control and power conversion devices – and valuable support



Your battery energy storage systems help your customers achieve cleaner and more efficient energy. Our devices and support help you design and build the systems they need – in a wide range of applications.

Our product ecosystem, from converters and controllers to commodity accessories, helps you maximise efficiency and generate monetary savings. Our devices offer plug and play integration, even at utility scale and in complex applications, and give you grid compatibility – and we support your business with local-language assistance, expert training, and stellar delivery performance.




“The customer turns the unit on – and that's it. It's plug and play”

E-power uses the DEIF iE 250 controller to develop an all-in-one BESS hybrid energy solution that provides fuel-saving no-break power for construction sites.



What do you want to build for your customers?

Flexible, reliable, and powerful, our devices provide cutting-edge control and conversion functionality that helps you integrate and scale BESS solutions in a wide range of sectors like power rental, commercial and industrial systems, energy utilities, ships, and offshore platforms. What do you want to build?

Decades of experience in energy control

DEIF has decades of solid experience in efficient energy control and emission reduction gained from working across a broad range of industries and with many different energy sources. We use that experience to offer market-leading devices and support to OEMs, asset owners, system integrators, packagers, and EPCs.



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    - 90 years of energy pioneering
    - Manufactured at the highest standards
    - Superior quality
    - Unmatched service and support
    - Made in Denmark