Associate applicants have rated the interview process at National Grid with 2 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 58.9% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Very standard behaviorial phone interview with HR, followed by a half day interview compromised of an interview with the hiring manager and a "thought exercise" session with other applicants. About a month between each round of interviews
Interview questions [1]
Question 1
Describe your leadership and prior work experience