The term energy efficiency is particularly at home in the areas of sustainability and Environment 4.0, Industry and Factory 4.0, as well as the Internet of Things. Energy efficiency describes how much energy is required to achieve a specific goal, for example, to manufacture a product or to heat a building. The less energy is needed for this, the more energy-efficient the process or device is.
A simple example: a light bulb and an LED lamp both provide light. However, the LED lamp uses much less electricity to do so. This means it is more energy-efficient than the light bulb.
For businesses and households, high energy efficiency means lower costs because less electricity or heat is consumed. At the same time, energy efficiency helps to reduce greenhouse gas emissions and protect the environment. In modern factories and „smart“ homes, digital technology is often used to monitor and control energy consumption in real time. This allows weaknesses to be identified quickly and energy use to be further optimised.
Energy efficiency is therefore an important key to sustainable economic activity, saving costs and reducing CO₂ emissions.
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