[The Conversation Africa] Ghana reformed its electricity sector by the book but has lurched from blackouts between 2012 and 2015 to a glut of energy which costs government about 5% of GDP. Fitch ranks the energy sector as the biggest driver of national debt. How did this happen? It's a classic case of implementing the "standard reform model" - a one-size-fits-all approach - that ignores a country's political realities.