BibTex format
@techreport{Heptonstall:2017,
author = {Heptonstall, PJ and Gross, R and Steiner, F},
publisher = {UK Energy Research Centre},
title = {The costs and impacts of intermittency - 2016 update},
url = {http://www.ukerc.ac.uk/programmes/technology-and-policy-assessment/the-costs-and-impacts-of-intermittency-ii.html},
year = {2017}
}