 In 1995 , the site was considered for scheduling by English Heritage , because of its national importance as a good example of a late 20th @-@ century power station . It was also important because of its use as a testing ground for various generating sizes , from which came success in the UK 's electricity industry . However , by then the station 's buildings were in poor condition and it would have been financially difficult to ensure their long term preservation . Instead , it was decided a comprehensive study and photographic record of the station would be commissioned . 
