If anything, the present report helps to identify priority areas - such as limiting air pollution, reducing greenhouse gas emissions and properly allocating system costs - that warrant specific, new research. This report highlights the importance of full cost accounting, in particular in the context of the energy transitions under way in many countries. Ideally, it will contribute to generating new and more comprehensive research in the area of the full costs of electricity to allow policy makers and the public to make better informed decisions along the path towards fully sustainable electricity systems.