Complex sentence: It is powered by four 20RK270 marine engines with a 7080Kw at 100% MCR, the engines where built at the Newton-le-Willows site which at the time was part of the Alstom group.
Split into simpler sentences: It is powered by four 20RK270 marine engines with a 7080 kW at 100% Maximum Continuous Rating (MCR). The engines were built at the Newton-le-Willows site which at the time was part of the Alstom group.