1. Technical University of Denmark, Copenhagen, Denmark.
2. European Commission Joint Research Centre, Ispra, Italy.
3. University of California, Berkeley, CA, USA.
4. University College London, London, UK.
5. African Union Commission, Addis Ababa, Ethiopia.
6. International Energy Agency, Paris, France.
7. United Nations Economic Commission for Africa, Addis Ababa, Ethiopia.
8. International Institute for Applied Systems Analysis, Laxenburg, Austria.