JustGESI team members Harshit Vallecha, Lorraine Howe, Mulualem Gebreslassie along with colleagues Joshua Kirshner and Long Seng To have published a new letter article in the journal of ‘Environmental Research: Energy'. The article examines the critical supply chain issues through accounts of practical challenges encountered by off-grid energy developers and service providers in Ethiopia, Malawi, and Mozambique.