Consultancy firm Royal HaskoningDHV is implementing four mini hydropower plants along the Merawu river in Central Java, Indonesia.

The plants will provide a sustainable source of energy for 11,000 households in several villages.

They represent the first phase in the agreement with Indonesian energy investment company Tirasa to develop small scale hydropower plants to connect about 400,000 people to the grid.

Tender documents
Having completed a hydrological study and reviewed the local feasibility study, Royal HaskoningDHV is now preparing detailed design and tender documents for the four mini hydropower plants in Central Java that will provide a sustainable source of energy for around 55,000 people.

The next stage will involve tender assistance and construction management as part of overall responsibility for the entire project life cycle.

Sustainable solution
Tirasa is a pioneering energy investment company in Indonesia, where it is reported that more than 86 million people still lack even basic access to electricity. Mr Suryana Padma, President Director of Tirasa, said: "This is the first stage in our programme to provide a total installed capacity of 100MW by 2018.

These hydropower plants provide a sustainable solution to the lack of supply experienced in Indonesia."

dws-rhdhv-hydropowe-merawu-building-350px-  The hydropower project has been discussed at local community meetings.

Run-of-river plants
The project consists of 4 cascaded run-of-river plants, which will be constructed in order to deliver this energy from weirs, sediment traps and penstocks. The powerhouses will each contain several turbines. A transmission line will connect to the 20 kV grid, and access roads will also be constructed.

The impact on the local environment will be small and manageable. Local communities have been involved in the process through events and campaigns arranged by Tirasa and the regional government.

Stimulating economic activity
Ms Berte Simons, President Director Royal HaskoningDHV Indonesia, said: "In line with our mission to enhance society together, the impact of these plants will bring wider benefits to the local societies. The availability of power will support increased economic activity, and the plants themselves will provide employment locally."

Details of the facilities are: 6MW at Kerekan and Pandensari, 2.4MW in Watupayang and 1.2MW in Tempuran. The project has involved arranging permits and licenses with local government and energy company and power off-taker, PLN.

The 30 million USD programme expects a return on investment of seven years.

This news item was originally published on the website of RoyalHaskoningDHV.

Also read on this website 
● Tirasa and Royal HaskoningDHV initiate cooperation for building small scale hydropower plants in Indonesia, 22 November 2013

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