The GSMA Ecosystem Accelerator Innovation Fund will support projects that use mobile technologies to improve access to energy, water, and/or sanitation services for underserved communities in Sub-Saharan Africa, the Indian Subcontinent, and Southeast Asia. Applications are welcome from mobile network operators and mobile tower companies in partnerships with service providers for energy, water, and sanitation. Grants are up to £250 thousand. The deadline for concept notes is 15 April 2018. Find the details here