Complex sentence: ETSA Utilities is the operator of the South Australian electricity distribution network, delivering electricity from the high voltage transmission network connection points through a network of about 85,000 kilometres of powerlines, to over 782,000 residential and business customers throughout most of South Australia.
Split into simpler sentences: ETSA Utilities is the operator of the South Australian electricity distribution network. This involves the delivery of electricity from the high voltage transmission network connection points through a network of about 85,000 kilometres of powerlines, to over 782,000 residential and business customers throughout most of South Australia.