Energy systems are not only affected by energy policies, but by a wide range of other policies. Yet there has been little systematic analysis of this issue, and the knowledge that does exist is often not integrated across disciplines and sectors. The aims of this scoping paper are to i) produce a comprehensive review of existing research on the impact of non-energy policies on energy systems; and on the basis of this ii) propose a future research agenda. The review employed a literature search using a set of keywords (shown in Appendix A), together with a snowball approach (using article bibliographies) and review of selected journals. In total, 576 relevant documents were found.