Feature: Power Supplies
Transforming the future T
By Ales Bertuzzi, Advisory Board Member, CWIEME Berlin remains largely unchanged. Transformers still rely on traditional materials such as copper and silicon steel, both of which are becoming increasingly expensive and scarce. Additionally, transformers suffer from
he transformer industry has long been considered a niche market, with slow innovation compared to other sectors. However, evolving energy networks,
material advancements and automation are now forcing the industry to rethink transformer design and functionality. Having spent years in the energy
sector, I have witnessed numerous market fluctuations. However, nothing compares to the past five or six years, particularly in North America, where the industry has experienced unprecedented growth. Te drive to reduce carbon emissions and
combat global warming has significantly accelerated the transition towards electric energy, with nuclear and renewable sources taking precedence over fossil fuels. Tis shiſt creates a need for more efficient and reliable transformers to support modern energy networks. Despite its crucial role in power distribution, transformer technology
36 June 2025
www.electronicsworld.co.uk
energy losses of between 5-10 per cent, which are dissipated into the air due to inefficiencies. Tere is a huge opportunity to rethink transformer design and innovate beyond current limitations. By collaborating and embracing new technologies, we can accelerate progress and enhance energy reliability.
Material innovations One of the most promising areas for transformer innovation is materials. While silicon steel has long been the industry standard for transformer cores, alternative materials are gaining traction. Amorphous materials, for instance, have been used in specialised applications for years due to their low energy loss properties. Chinese manufacturers have already
integrated amorphous materials extensively
into their distribution networks, leading the way in transformer efficiency. Te key challenge is sourcing these
materials at scale. Every era has had its defining material, whether it was salt, gold, steel or oil. Today, we must identify and invest in the materials that will define the future of energy infrastructure. Lithium, once abundant, is now
facing supply constraints, leading to the exploration of sodium as an alternative. Similarly, as copper prices rise, aluminium is becoming a viable substitute. By embracing new materials and creating economies of scale, we can drive down costs and improve efficiency.
Introducing automation Historically, the transformer industry has resisted automation due to the flexibility required for custom designs and the relatively low production volumes. However, this is changing. Te demand for transformers is surging, and manufacturers face delivery times of two
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