Island grid hybridization and renewable energy integration in Indonesia

Energynautics engineers visit Timor to continue support of GIZ implemented REEP2 programme

As part of the second stage of the GIZ implemented 1,000 Islands – Renewable Energy for Electrification Programme (REEP2) on behalf of the German Federal Ministry for Economic Cooperation and Development (BMZ),Energynautics support renewable integration in Indonesia under a three-year contract, following a previous similar agreement for the first project phase from 2017 through 2020.

One of the assignments is to support power system planning studies in the islands of Nusa Tenggara Timur (NTT), the Eastern Lesser Sunda Islands. This region in southeast Indonesia consists of the main islands of Sumba, Flores, and the western part of Timor, as well as a large number of smaller islands. Despite some small-scale renewable energy rollouts happening in the past few years, the islands are still mainly powered by coal and diesel, with high emissions at above average generation costs. Some electrification challenges also persist in remote communities. In cooperation between the GIZ implemented REEP2 programme, and the British embassy’s MENTARI programme, consultants Energynautics, ECA, Castlerock, and ITB Quadran currently work on developing feasible generation expansion plans for the islands that involve increased shares of renewable energy.1

To get a better understanding of the current situation in NTT, discuss with representatives of state utility PLN, and help collect some crucial power system data, Energynautics engineers Alice Turnell and Peter-Philipp Schierhorn joined GIZ’s REEP2 team on a trip to Timor in June 2022. Among the sites visited were the 5 MWp PV power plant PLTS Kupang, the newly built 50 MW gas engine power plant PLTMG Kupang Peaker, the Timor dispatch center, and a number of other conventional generation sites.

1 MENTARI programme is a consortium. Palladium International, Hivos, Castlerock Consulting, and ECA have been appointed by the UK Government
as Delivery Partners to design and implement MENTARI.

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