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°æÁ¦Àû Ÿ´ç¼º ºÐ¼®

°æÁ¦¼º ºÐ¼®Àº »ç¾÷ÀÇ ÀÌÀͰú Àüü ºñ¿ëÀ» »êÃâ / ºñ±³ ÇÔÀ¸·Î½á ÇöÀç ÁøÇà ÇÒ »ç¾÷ÀÇ Å¸´ç¼ºÀ» ºÐ¼® Çϴµ¥ ¸ñÀûÀÌ ÀÖ´Ù.

Process of the Analysis
   - Least Cost Analysis (ÃÖÀú ºñ¿ë ºÐ¼®)¸¦ ÅëÇØ »ç¾÷¹æÇâ ¹× ¹æ¹ý ¼³Á¤
   - °¢Á¾ ºñ¿ë ¹× ¿¹»ó ¼öÀÍÀ» °è»ê
   - °è»êµÈ ³»¿ëÀ» ÅëÇÏ¿© Economic Analysis(°æÁ¦¼º ºÐ¼®) ½Ç½Ã
   - °è»êµÈ ³»¿ëÀ» ÅëÇÏ¿© Financial Analysis(À繫ºÐ¼®) ½Ç½Ã
   - ºñ¿ëÀÇ Áõ°¡ ¶Ç´Â °¡°ÝÀÇ º¯È­¿¡ ´ëÀÀÇϱâ À§ÇØ Sensitivity Analysis¸¦ ½Ç½ÃÇÏ¿©
      »ç¾÷ÀÇ ½ÇÇà °¡´É¼ºÀ» ÃÖÁ¾ÀûÀ¸·Î È®ÀÎÇÑ´Ù

Introduction


Consideration of Alternatives for Executing Projects (»ç¾÷ ½ÇÇàÀ» À§ÇÑ »ç¾÷ ¹æ¹ý °­±¸)

Consider the Supply Options (Àü·Â °ø±Þ ¼±ÅÃÀÇ °­±¸)
   Ä¯º¸µð¾ÆÀÇ Àü·Â ¸¶½ºÅÍ Ç÷£ÀÇ °æ¿ì 2°¡Áö OptionÀÌ °í·Á µÇ¾ú´Ù
   1. Construction of Medium-Speed Diesel Plant(¹ßÀü¼ÒÀÇ °Ç¸³)
   2. Import Electricity from Other Nation and Construct Transmission Line
    (Ÿ ±¹°¡¿¡¼­ÀÇ Àü·Â ¼öÀÔ°ú ¼ÛÀü¼± °Ç¼³)
Make a Decision of Discount Rate for Calculating the Net Present Value(¼ø ÇöÀç°¡Ä¡)
°¢ Option¿¡ ´ëÇÑ ºñ¿ëÀ» »êÁ¤Çϰí NPV¸¦ ±¸ÇÑ´Ù

°¢°¢ÀÇ °æ¿ì¿¡ ´ëÇÑ NPV ¸¦ ºñ±³ÇÏ°í ºñ±³ °á°ú¸¦ Åä´ë·Î Supply OptionÀ» ¼±ÅÃÇÑ´Ù.

Discount Rate and Calculation of Each Total Cost (Discount Rate ¹× ÃÑ ºñ¿ëÀÇ »êÃâ)

Discount Rate = 12%

   °ø°øÁ¤Ã¥ÀÇ °æ¿ì Discount RateÀº Á¤ºÎÀÇ Á¤Ã¥À̳ª ÀÔ¹ý¾ÈÀÇ ÀǰÅÇÏ¿© °áÁ¤µÇ¾î Áø´Ù
Total Cost of Medium-Speed Diesel Plant (¹ßÀü¼Ò °Ç¸³À¸·Î ÀÎÇÑ ÃÑ ºñ¿ë »êÃâ)
   = Investment for Generator + Investment for Distribution + Operating Expenses
   ¢Ñ Operating Expenses = O&M of Distribution + Fuel Cost + Fixed O&M + Variable O&M
   Âü°í : O&M = Operation and Maintenance Cost
Total Cost of 115kv Transmission Line (¼ÛÀü¼± °Ç¼³·Î ÀÎÇÑ ÃÑ ºñ¿ë »êÃâ)
   = Investment for Transmission + Investment for Distribution + Energy Import + O&M
   ¢Ñ O&M = O&M of Transmission + O&M of Distribution

Calculation of Net Present Value (NPV) and Comparison (¼ø ÇöÀç°¡Ä¡ÀÇ »êÃâ ¹× ºñ±³ºÐ¼®)

Deriving of NPV with 12% of Discount Rate

???   ¡Ø values = Total Cost in Project Year
   ¡Ø i = years
   ¡Ø rate = discount rate (12%)

2°¡Áö ¼±ÅÃÀû ¿É¼ÇÀÇ NPV°¡ »êÃâÀÌ µÇ¸é 2°¡Áö ¿É¼Ç¿¡ ´ëÇÑ ºñ±³ºÐ¼® ½Ç½Ã

2°¡Áö ¿É¼Ç Áß NPV°¡ ³·Àº ¿É¼ÇÀÌ »ç¾÷¹æ¹ýÀ¸·Î äÅÃÀÌ µÈ´Ù.

Economic Analysis
¢Ñ ÀûÀýÇÑ °æÁ¦Áö¼ö¸¦ ÀÌ¿ëÇÏ¿© ºñ¿ë°ú ÀÌÀÍÀ» ºñ±³ÇÔÀ¸·Î½á ÅõÀÚ¸¦ °áÁ¤ÇÏ´Â ºÐ¼® ¹æ¹ý

°ü·Ãºñ¿ëÀÇ °áÁ¤ ¹× »êÃâ
»ç¾÷ÀÇ °èȹ ¹× ¿î¿µ Á¤¸³
»ç¾÷ÀÌÀÍÀÇ ¼ö·®È­
°æÁ¦ºÐ¼®À» À§ÇÑ Å¸´çÇÑ °¡Á¤ ¼³¸³
EIRR, NPV, Benefit / Cost Ratio˂ Ȑ̉
Base, Lower, Upper 3°¡Áö À¯ÇüÀÇ ½Ã³ª¸®¿À¸¦ ÅëÇÑ °æÁ¦ºÐ¼®
3°¡Áö ½Ã³ª¸®¿À´Â ¼ö¿ä¿¹Ãø °á°ú¿¡ ÀÇÇØ ¼º¸³µÈ´Ù
°á°úȹµæ
°áÁ¤À» À§ÇÑ ºñ±³ºÐ¼® ½Ç½Ã

Economic Costs
: includes Investment Costs, O&M Costs of the Transmission System, O&M Costs of Distribution Line, and Energy Import Costs

Investment Cost
   = Costs of Transmission Line, Distribution Line, and Low Voltage Line + Substation Construction
   + Civil Work + Engineering + Administration
   ¡Ø Excludes Taxes and Duties

Operation and Maintenance (O&M) Costs of the Transmission System
   = Costs of day to day Operation of the Line = estimated at 2.5% of the Investment Costs from last project

Operation and Maintenance (O&M) Costs of Distribution Line
   = estimated at 2.5% of the distribution line investment costs from last project

Cost of Energy Import
   = The last project assumed 6.5 US cents / kWh, Energy is imported from Vietnam, and the purchased
    price is based on EdC average import price from Vietnam in year 2004

Economic Benefits
: »ç¾÷À¸·Î ¹ß»ýµÇ´Â ¼ö·®È­µÈ °æÁ¦ÀÌÀÍÀº Àü·Â ÆÇ¸Å·®À¸·ÎºÎÅÍ ±âÀÎÇÑ´Ù

Àü·Â ÆÇ¸ÅÀÌÀÍÀ» ÃßÁ¤ Çϱâ À§ÇØ 3°¡Áö °¢±â ´Ù¸¥ Àü·Â ¿ä±ÝÀ» Àû¿ë
   - 9 US cents / kWh
   - 14 US cents / kWh
   - 17 US cents / kWh
The Project Benefits = Total Energy Sales = Total Consumption ¥ª Tariff Rate
   - »ç¾÷ÀÇ ÀÌÀÍ = ÃÑ Àü·Â ÆÇ¸Å·® = ÃÑ Àü·Â ¼ö¿ä ¥ªÀü·Â¿ä±Ý

»ç¾÷À¸·Î ÆÄ»ýµÇ´Â ¼ö·®È­ ÇÒ ¼ö ¾ø´Â ÀÌÀÍ
   - °æÁ¦ÀÇ È°¼ºÈ­
   - ÀÏÀÚ¸® âÃâ
   - ÀÓ±ÝÀÇ Àλó
   - Àü·Â ¼ö¿äÀÚ¿¡°Ô ¾ÈÁ¤ÀûÀ̰í ÀûÀýÇÑ °¡°ÝÃ¥Á¤°ú Àü·Â °ø±ÞÀº ±¹°¡ÀÇ °æÁ¦¹ßÀü°ú ºó°ïÀÇ °¨¼Ò¸¦ ÆÄ»ý

Three Economic Analysis Criteria (Indicators)
: Economic Internal Rate of Return, Net Present Value, and Benefit-Cost Ratio

Economic Internal Rate of Return (EIRR) = °æÁ¦Àû ³»ºÎ ¼öÀÍ·ü
   - It is the rate of discount at which the cost and benefit streams over the life of project equalized
   (¸ðµç?Çö±Ý À¯ÀÔ ¹× ÃâÀÔÀÇ?Çö°¡ÀÇ?ÇÕÀ»?0À¸·Î?¸¸µå´Â?ÇÒÀÎÀ², ÀÏ·ÃÀÇ Çö±Ý È帧¿¡ ´ëÇÑ ³»ºÎ ¼öÀÍ·üÀ» ¹Ýȯ)
   - »ç¾÷ÀÇ ½ÇÇàÀ» À§Çؼ­´Â EIRRÀÇ °ªÀÌ Discount Rateº¸´Ù Ä¿¾ß ÇÔ

Net Present Value (NPV) = ¼ø ÇöÀç°¡Ä¡
   - »ç¾÷À¸·Î ÀÎÇØ ÆÄ»ýµÈ ÅõÀÚÀÇ ÇöÀç°¡Ä¡
   - ÀÏ·ÃÀÇ Á¤±âÀû Çö±Ý È帧°ú ÀÎÇÏÀ²À» ±âÁØÀ¸·Î ÅõÀÚ¿¡ ´ëÇÑ ¼ø ÇöÀç °¡Ä¡¸¦ ¹Ýȯ
   - »ç¾÷ÀÇ ½ÇÇàÀ» À§Çؼ­´Â NPVÀÇ °ªÀÌ 0º¸´Ù Å« °ªÀ» °¡Á®¾ß ÇÔ

Benefit-Cost Ratio (B/C Ratio) = ºñ¿ë´ëºñ ÀÌÀÍ ºñÀ²
   - »ç¾÷ÀÌÀͰú »ç¾÷À¸·Î ÀÎÇÑ ºñ¿ëÀÇ ºñÀ²
   - »ç¾÷ÀÇ ½ÇÇàÀ» À§Çؼ­´Â B/C RatioÀÇ °ªÀÌ 1º¸´Ù Å« °ªÀ» °¡Á®¾ß ÇÔ

Sensitive Analysis
: Test the viability of the project if costs and tariff rate are increased
(»ç¾÷ÀÇ ºñ¿ëÀ̳ª Àü·Â ¼öÀÔ °ü¼¼°¡ »ó½ÂÇßÀ» ¶§ »ç¾÷ÀÇ ½ÇÇà °¡´É¼ºÀ» ºÐ¼® ÇÏ´Â °Í)

°¢Á¾ ºñ¿ëÀÌ »ó½Â ÇßÀ»¶§ÀÇ EIRRÀ» »êÃâ ÇÔÀ¸·Î½á »ç¾÷ ÁøÇà °¡´É¼ºÀ» ´Ù½Ã ºÐ¼® ÇÔ
   - »ç¾÷ÀÇ ¼³ºñ ÅõÀÚ ºñ¿ëÀÌ 20% »ó½Â ÇßÀ»°æ¿ì
   - Àü·Â ¼öÀÔÀÇ °ü¼¼°¡ 20% »ó½Â ÇßÀ»°æ¿ì
   - ¼³ºñ ÅõÀÚ ºñ¿ë°ú Àü·Â ¼öÀÔ °ü¼¼°¡ µ¿½Ã¿¡ 20% »ó½Â ÇßÀ»°æ¿ì

   ¡Ø °¢ °æ¿ìÀÇ EIRRÀ» °¢ ½Ã³ª¸®¿À º°·Î »êÃâ Çϰí Discount Rate 12%¿Í ºñ±³ ºÐ¼® ÇÏ¿© »ç¾÷ÀÇ
    ½ÇÇà ¿©ºÎ¸¦ ÆÇ´ÜÇÏ°Ô µÈ´Ù