Pancasila-Palmerah Bridge (Photo by Minister of Domestic Affairs)

JAKARTA (TheInsiderStories) – Investors from the Netherlands have expressed interest in develop an ocean wave power plant under Pancasila-Palmerah bridge connecting Flores Island and Adonara in East Flores regency, East Nusa Tenggara, a senior official said on Wednesday (13/9). The investment is expected to reach US$143.6 thousand.

Minister of Energy and Mineral Resources Ignasius Jonan told reporters the Dutch company plan to build an ocean wave-powered electrical generation plant with 20 megawatt (MW) capacity, from an average ocean wave speed of 4 to 5 meters per second.

“They are offering electricity price of US$16 per kilowatt hour (kwh) to state-owned electriciy company PT Perusahaan Listrik Negara (PLN) but we think it’s too expensive. They offering lower price later at $7.18 sen per kwh and then we said okay,” he said.

This move is one of government effort to achieve its targeted energy mix of 8,050 MW by 2025 or 23 percent of total 35,000 MW. Current energy mix utilization is only 12.5 percent.

“In the last 10 months we already sign Power Purchase Agreement between PLN and Independent Power Producer (IPP) with total capacity 700 MW. We optimistic to reach 3,000 MW renewable energy power plant until 2019,” said Jonan.

Study and trial projects of wave power plants and ocean current power generation has been performed by the country’s Agency for the Assessment and Application of Technology for 10 kilowatt generation in East Nusa Tenggara since last 2015.

Government also start to open bidding process for private players. However, none participated, perhaps particularly of the technology is still not reliable, as well as the absence of gradual tariff.

East Nusa Tenggara is selected regarding it having the best areas for marine current power plants due to its location, where warm and cold ocean currents meet.

Bone Marasit, Head of the Mining and Energy Agency of East Nusa Tenggara has said PLN is targeting 700 villages in the islands-based region to be electrified by 2017. The auction planning has been prepared and the process of electrical project work started in July to Nov. 2017.

“Later, there is a regency in NTT whose 100 percent of the village is electrified, i.e., Flores,” he said.

PLN is targeting 500 villages to get electrified in 2018. Hopefully, by the end of 2018, all villages in the East Flores will have electricity. According to Marasit, the target of 700 villages is part of the national electrification ratio target, which is 11,300 villages to be powered by the end of 2019.

In addition to East Nusa Tenggara, there are some remote islands that will be electrified by 2019, such as small islands in Sumatra, Maluku and Papua. To reach the target, the company applies the concept of optimizing renewable energy by implementation in a hybrid way in accordance with the existing energy sources in the region.

Previously, the Dutch consortium has expressed interest in investing in the development of Gonsalu Straits’ potential energy energy potential in East Flores regency, since late 2015.

Of the 12 points of ocean currents in Indonesia, the Gonsalu Strait that separates the mainland Flores with Adonara Island is considered the best location to collect the potential of large electrical energy.

Based on preliminary survey results, the Gonsalu Strait stream has a 2.5mph per second power in the dark and 3.5m in seconds in the full moon. The moon’s gravitational influence “pulls” the sea’s surface on the earth.

Writing by Yosi Winosa, Email: