Abstract
Jakarta has 10.2 million inhabitants. It has thoughtful problem about clean water availability. Today, only 54% of clean water availability could be supplied to citizens in Jakarta. The urgent need of new clean water resources is highly demanding for Jakarta future life. By employing abundant sea water in the northern part of Jakarta, desalination is a highly effective way that has been proven through value engineering. A conceptual design of desalination project is completed through FAST diagram and benchmarking method. According to life cycle cost analysis, it results IRR 13%, net product value Rp3.782 trillion, payback period of 13.39 years, and benefit cost ratio of 3.00. To make this project complete and reasonable, the public-private partnership should be conducted for modal sharing. This research piloted four analyzed scenarios. The best alternative scenario makes the government budget 60% for initial cost, spend half for operational and maintenance cost, and obtain 20% from the whole project revenue.
Highlights
Jakarta, the capital of Indonesia with approximately 10.2 million people, faces excessive problem of water availability [1]
Berawi et al [9] discussed about existing project, while this paper proposes desalination plant project for clean water sustainability in Jakarta
Value engineering method could increase value for money that is shown by the increasing of internal rate return (IRR) from 12.95% to 13.02%
Summary
The capital of Indonesia with approximately 10.2 million people, faces excessive problem of water availability [1]. The city with area of 661 km, should fulfill water demand from outside of the city. Its water supply reaches 98% from the outside of the city. Ciliwung River, once able to meet the water needs of Jakarta population. Ciliwung River is no longer able to meet all the water demand of the city. Aetra Air Jakarta, are only able to meet about 54% of the clean water demand for Jakarta inhabitants. 46% of water supply to the residents are obtained from groundwater resources. The quality of water resources from Jatiluhur reservoir through Banjir Kanal Barat is declining. It could be denied that over 80% of Jakarta water demand are met from this resource
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