This request is for expression of interest by qualified and competent firms and organisations that are interested in Provision of Services for Construction of a Hybrid PV Mini-grid System and Rehabilitation of Grid Infrastructure in Buka, Autonomous Region of Bougainville, Papua New Guinea.IMPORTANT NOTE: Interested firms/organisations must respond to this call for expression of interest using the UNOPS eSourcing system, via the UNGM portal. In order to access the full UNOPS call for EOI details, request clarifications, and submit a vendor response to this call using the system, vendors need to be registered as a UNOPS vendor at the UNGM portal and be logged into UNGM. For guidance on how to register on UNGM and submit responses to UNOPS business opportunities in the UNOPS eSourcing system, please refer to the user guide and other resources available at: https://esourcing.unops.org/#/Help/Guides