I applied online. The process took 3 months. I interviewed at National Grid (Warwick, West Midlands, England) in Mar 2018
Interview
After your application is complete you may be selected for a telephone interview. This was straightforward and based on competencies (can you tell me a time that...?) and an understanding of the energy sector. They send you details of the competencies before the interview and the assessment centre which is very helpful and these are a great place to start preparing.
The assessment centre contained another interview fairly similar but more flexible around a few key areas (again, refer to the competencies they list on your invite). They'll also want to hear what you know about the future of the sector you are applying to. By far the most useful part however is talking to the assessors over lunch, as you get to hear what they do and show what your interests are. There is also a presentation you have to prepare on the day itself (my advice would be to keep an eye on your preparation time) as well as a group task. The group tasks involves everyone and is nothing to worry about, nor something you could particularity prepare for - just make sure you communicate well with others and try and keep the discussion structured and moving forward.
My main advice is prepare examples of you displaying competencies in the past, relax and talk to the assessors as much as possible about what they do, what you find interesting, etc.
Interview questions [1]
Question 1
Tell us about a time you had to manage your time to meet a deadline.
Extremely unprofessional with a complete lack of respect for a graduate’s time. Firstly, I passed the initial screening and online test stages before submitting a recorded interview in November. I then received an email in early December to ask if I was available on a specific date in January, in the event that I was shortlisted for the job. I replied to confirm my availability and made sure to keep the date free. I did this for 7 weeks without further communication until the day before the interview date when I was informed that I had not been selected. The hiring team showed a disregard for their future employees’ time and personal life.
Interview questions [1]
Question 1
General situational questions (tell me about a time that you…)
First Hirevue, then email saying you have been forwarded to the hiring manager, then interview day with case interview with 2 other candidates, after you get contacted in a few weeks about the decision.
first round was a recorded interview with a number of question second round was with two staffs third round was with a group of other interviewees to do a group interview