1. Ph.D. Student, Institute for Energy Systems, School of Engineering, Univ. of Edinburgh, King’s Buildings, Edinburgh, EH9 3JL, UK.
2. Lecturer, Institute for Energy Systems, School of Engineering, Univ. of Edinburgh, King’s Buildings, Edinburgh, EH9 3JL, UK (corresponding author).
3. Senior Lecturer, Institute for Energy Systems, School of Engineering, Univ. of Edinburgh, King’s Buildings, Edinburgh, EH9 3JL, UK.