these trains are being manufactured by hitachi rail for italian rail operator trenitalia, based on hitachitrain is in operation, both in diesel and electric mode. when it's near a station, the batteries power the train completely, cutting emissions and reducing noise. at other times, they will use overhead power or when the line is un—electrified, the diesel engine. however, the batteries will still be able to power other aspects of the train than just propulsion, such as lighting and heating. so what are some of the challenges with implementing battery technology in trains? is it weight or is it power consumption? it's a combination of these two items. so our experts and our designers are continually working on it. reducing the weight means also reducing the energy and the consumption and it's a problem of space, it“5 a problem of weight. so the evolution of proposal for battery, it“5 improving this aspect. this is why in terms of weight and size, it's ok but now it will require test and test before it can go on the market. despite this, hitachi claim these new trains will produce 50% les