The modern sewage works, run by Severn Trent Water, is alongside the pumping station.
The main use of these dynamos was the supply of lighting to the site complex and accompanying workers cottages with the larger 50 amp dynamo running at night and the smaller 30 amp unit in the day.
The Claymills made engine driving the 30 amp dynamo is believed to have been manufactured on site in the workshop.
The Large Buxton and Thornley horizontal steam engine driving the 1889 open frame dynamo has a version of Meyer shut off valve gear.
the vast majority has been required by the trust and the workshop has been restored to full running order.
In normal operation only two out of the five boilers would be in steam with one on hot reserve and the other two having maintenance work.
These boilers were of wrought iron construction and were later renewed in 1936 with steel replacements by John Thomson and co.
When the plant was first constructed the boilers were hand fired with the first steam driven mechanical stokers being installed in 1908.