There was a programme on Radio 4 on Monday night called "Electric Ride UK". The three part series was about a man who did the Land's End to John O'Groats journey in an electric car. In this final episode he reaches John O'Groats. The episode also has an interview with people from the battery factory in Thurso. The programme can be accessed via the following link:

https://www.bbc.co.uk/programmes/m0010088