Electronics manufacturers REO UK explains how toroidal transformers improve energy efficiency, lower CO₂ emissions, and can save a business 40% on its electricity bill.
Global energy demand is rising rapidly, driven by economic growth, technological development, and evolving consumer behaviour. As countries continue to industrialise and populations expand, energy consumption is projected to increase significantly. According to the U.S. Energy Information Administration’s (EIA) International Energy Outlook 2017, global energy consumption is expected to grow by approximately 28% between 2015 and 2040.
While this growth supports progress and improved quality of life, it also brings serious challenges, chief among them being a corresponding increase in carbon emissions and environmental impact; the same report projected that fossil fuels would still account for 77% of global energy consumption in 2040.
As energy consumption grows, so too does the urgency to find solutions that reduce the associated carbon footprint. In response, governments and organisations worldwide are stepping up to the challenge. In the UK, the government has set an ambitious target of reaching net zero carbon emissions by 2050. Achieving this will require a multi-faceted approach, and one crucial component is improving the energy efficiency of electrical and electronic equipment across all sectors. Notably, through its Footprint Label scheme, the Carbon Trust is vital in helping consumers, businesses and manufacturers make informed choices about the energy and carbon impact of the products they use and purchase.
Therefore, energy efficiency has become a focal point in today’s markets. Whether in industrial, commercial, or domestic settings, the importance of choosing efficient electrical equipment has never been greater. A significant part of many electrical systems is the transformer, which steps down mains voltage to a level suitable for the intended application. While many low-power applications have moved to Switch Mode Power Supplies (SMPS), particularly for mobile phones and computers, traditional transformers are still widely used in more demanding environments.
Despite their ongoing importance, not all transformers are the same, especially regarding efficiency. Many older systems still rely on conventional laminated core transformers, typically EI transformers. Although functional, these units often lag behind modern designs in terms of energy efficiency. They can contribute to significant energy loss, accumulating over the product’s operational lifetime and increasing running costs and carbon output.
By comparison, modern toroidal transformers substantially improve performance and efficiency. A typical 1000 VA EI transformer can have operational losses of approximately 66 watts when running at full load. Over a year—and more so across several years—this translates into considerable wasted energy. In contrast, a similarly rated toroidal transformer, such as those manufactured by REO, can reduce these losses to around 40 watts – this represents a reduction of almost 40% in energy wastage.
To put this into perspective, over five years, the energy savings equate to approximately 21 kilograms of CO₂ not being emitted into the atmosphere. That’s roughly the equivalent environmental benefit of driving 128 fewer kilometres in a petrol-powered car, without even factoring in the financial savings from reduced energy consumption.
In addition to improved efficiency, toroidal transformers offer several practical advantages. Their compact design and central fixing hole make them easy to install within control cabinets or enclosures, saving installation time and reducing labour costs. They can also be encapsulated for protection against dust and moisture, with ingress protection ratings up to IP54. Products like REO’s toroidal transformers conform to strict standards such as IEC/EN 60601, making them ideal for use in safety-critical environments.
Ultimately, embracing newer technologies like toroidal transformers is a simple yet highly effective way for companies to reduce their energy consumption, lower carbon emissions, and align with long-term sustainability goals. As the pressure to act on climate change increases, upgrading outdated electrical infrastructure is no longer optional—it’s essential.
