Steven Matthews (Wicklow, Green Party)
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I am not a member of this committee but I was briefly listening in because I am interested in this area. If I repeat questions or if something has been covered already, please accept my apologies. Mr. Smith provided a good synopsis at the end. What I am trying to figure out is that we have this good battery storage system that we know can provide back-up when we get drops in supply or faults. The batteries can come into play pretty quickly. As Mr. Smith described it, the long-duration technology can store up to 100 hours of electricity. Mr. Smith also mentioned the iron-to-air technology. What does that look like? I know in my mind what a whole load of battery packs look like, the space they take up and the technology to switch them in. How does the iron-to-air technology create current in a wire? How does the process work?