Since the 1980s, donors already support solar power projects in the Philippines. Reports and documentations provide a positive image on project success, but field trips to earlier project sites tell an opposing story. This field report shows that even in an area with only little donor fragmentation problems like a lack of coordination, communication and learning lead to unsustainable projects. It confronts official project reports with the latest experiences from the field and provides qualitative information to an ongoing debate about potentials and problems of donor diversification. Copyright © 2014 John Wiley & Sons, Ltd.