Whether we are innovating in our faster growing market segments, or supporting the changing requirements through our energy saving solutions for more traditional industries, our materials innovations enable rapid change.
With more than 400 scientists and engineers across the Group, our people are busy developing new materials and applications. Our deep expertise in carbon and ceramics is maintained and strengthened through our ongoing process of research and development, an area that we invest approximately £30 million in each year. Each business unit has a clear strategy and a technology roadmap that supports our customers and fulfils our purpose to make the world more sustainable.
Today, our innovative products and solutions are helping customers to reduce their carbon emissions. We manufacture precision ceramic cores that are used to cast turbine blades for aero engines and industrial gas turbines. Our customers come to us for their most demanding applications, for example when they need to hold very fine features on small components. These demanding applications arise as the latest generation of engines need to run hotter to be more efficient. Our cores enable these new engine technologies.
We produce some of the leading brush grades for wind turbines, offering longer lifetimes than our competitors. In addition to enabling wind technology, we also drive lower maintenance activity, and costs, for wind farm operators, further reducing the CO2 footprint.
In the electrified rail market, we produce a range of collector strips and carbon shoes to connect the train to the power cable or rail. In the metro market in China, we have developed a wide range of high-performance material grades to perform in the varied climatic conditions. Our products directly enable electrified rail, and offer superior lifetimes.
Our products are widely used in the semiconductor manufacturing process. We are seeing rapid growth in power electronics applications for electric vehicles and grid power conditioning, and we are directly enabling clean transportation and the renewable grid.
Through their life, our products typically save 10s or 100s of times the CO2 emitted in manufacture.