Complex sentence: The old power station in Bargates, owned by Scottish and Southern Energy, housed the Museum of Electricity, which is no longer open to the public, although the company is working on new ways to share the collection more widely across the UK.
Split into simpler sentences: The old power station in Bargates, owned by Scottish and Southern Energy, housed the Museum of Electricity. This is no longer open to the public, although the company is working on new ways to share the collection more widely across the UK.