Complex sentence: A project between the Riventa, Deritend and the UK's Severn Trent Water (STW) at the water company's Melbourne Area Network, which has always suffered from large variations in energy use and numerous historic investigations had not uncovered the reasons or best operating policies.
Split into simpler sentences: A project between the Riventa, Deritend and the UK's Severn Trent Water (STW) at the water company's Melbourne Area Network, which has always suffered from large variations in energy use. Numerous historic investigations had not uncovered the reasons or best operating policies.