1. Telephone interview: basic competencies and motivations. Be prepared for follow up questions on what you learned and challenges you faced. 2. Motivational interview: more motivation and competencies interview (face-to-face) at their office (the focus is on motivation). 3. Technical interview: work on a case study about refineries with 2 assessors who are fairly senior in the business. Prepare to hold your ground and prove yourself as they probe and challenge you. The case study itself is not technical, and you can ask your assessors questions, but do not mess up the maths. Be clear and concise in your communication, and prepare to brainstorm a lot of ideas. 4. AC: although the office is in Canary Wharf, the AC is in Sunbury. - Negotiation exercise: role play in different teams as different stakeholders in a negotiation. Watch time carefully as you have 45 minutes to meet others, find information, and agree to a contract. - Group exercise: a market-based case study on selling excess energy. The case itself is not technical. Listen to people's opinions and inputs as each has a different brief. Watch out as new market developments happen, and discuss with team. Come to a conclusion on time. - Analytical exercise: 1-to-1 case study about pricing and storage (among other things). Some basic maths involved. The assessor can be very quiet or very aggressive. Ask him/her questions as you prepare the case. Overall, a very thorough process. Such a shame that there has been insufficient feedback about candidates' performance months after the final stage.

Right after the psychometric tests, I was invited for first round telephone interviews which are competency based. I booked the session which was a month away for more preparation, then they said they'd get back to me in a month which makes the process even longer. They said it was just a conversation, but they do some SERIOUS interrogating - you have been warned. Not the easiest of applications if I must admit.