การศึกษาความเป็นไปได้ในการลงทุนโรงไฟฟ้าพลังงานคลื่น บริเวณชายฝั่งทะเลในอำเภอแหลมสิงห์ จังหวัดจันทบุรี

Abstract

The study aimed to (1) explore the coastal area of Amphoe Laem Sing Changwat Chanthaburi (2) identify appropriate technology to produce electricity from wave power farm in Amphoe Laem Sing (3) perform the financial feasibility of the project. The primary data was collected by participant observation method and in-depth interviews and the secondary data was collected from academic documents of various sources including the internet. Both types of data were used in descriptive and quantitative analyses. The analytical tools were weighted average cost of capital (WACC), net present value (NPV), internal rate of return (IRR), modified IRR (MIRR), profitability Index (PI). The study revealed that the coastal area in Tambon Pak Nam Laem Sing was suitable for installation of wave energy converters because there was no maritime traffic in the area and the average wave height was around 0.76 meter enough to generate electricity from Drakoo wave energy converters which required the waves height between 0:20 to 5:50 meters. Efficient power conversion was around 55 percent capacity. The wave energy convertor could replace breakwater with less environmental import. The financial feasibility based on project life of 21 years and WACC at 5.82 percent showed that the project was infeasible since NPV was -130,101,979.69 Baht, IRR was 1.62 percent, MIRR was 3.73 percent, and PI was 0.66. Thus, the electricity production business alone was not feasible at the time since the technology was still at high cost. However, the project was a better alternative for breakwater in term of cost effectiveness.