An increase in the use of off-grid solar panels in Kenyan households leads to an increase in daily lighting use alongside a decrease in the use of 'dirty' lamps. The use of solar panels also results in a one litre reduction in the monthly use of kerosene for lighting.
These are just two of the findings described by the authors of this article on 'The impact of off-grid solar home systems in Kenya on energy consumption and expenditure'.
Published in Energy Economics (vol. 99), the article by Natascha Wagner, Matthias Rieger, Arjun Bedi, Jurgen Vermeulen and Binyam Demena find that these and other cost reductions linked to the use of solar panels translate into a return on investment period of approximately 6 years. They also find small environmental benefits, increased customer satisfaction as a result of better quality lighting and an increase in leisure time watching television.