This document outlines the objectives and methodology of a research project investigating community-led energy demand reduction initiatives through an analysis of people's "energy biographies". The project aims to 1) develop understanding of energy use by comparing energy biographies across different social settings, 2) examine how demand reduction interventions interact with personal biographies, and 3) improve understanding of how communities can support reduced energy consumption. The researchers are using narrative interviews, longitudinal qualitative methods, and visual methods to collect data from case sites in Wales and England. The analysis will involve coding, case biographies, qualitative longitudinal analysis, and multi-modal approaches.