Tidal Power 김근호 김지훈 박민주 박지환 변웅섭 이강용 허다범

01 Tidal Power Ebb tide high tide high tide Sea water Ebb tide

01 Tidal Power Ocean Power Tidal/Tidal current (9%) Thermal Desalination (53%) Wave power (36%) Salinity difference (2%)

01 Tidal Power Trend of technical development (Korea) Check the validity of tidal power generation in the west coast (Garolim Bay) 1980s 1993 B/C = 0.84 (not economical)  delayed 2004 Sihwaho Lake ; fresh water  sea water 2005 Garolim Bay  detailed investigation Environmental effects evaluation 2011

01 Tidal Power Tidal Power plant

01 Tidal Power strength weakness No exhaustion Clean energy Small size of turbine ( than wind power ) Low energy density Intermittent Expensive Limitation on location

02 Old Megacity > 10 million Tokyo – Japan Jakarta – Indonesia Shanghai – China Karachi – Pakistan New York city – US Lagos – Nigeria Mumbai – India Osaka – Japan Manila – Philippines Los Angeles – US Buenos Aires – Argentina Bangkok – Thailand Istanbul – Turkey Rio de Janeiro - Brazil > 10 million

02 Old Megacity The difference between the rise and fall of the tide 1 The difference between the rise and fall of the tide > 4.5m Tidal range may vary over a wide range (4.5-12.4 m) from site to site. A tidal range of at least 7 m is required for economical operation and for sufficient head of water for the turbines. Mumbai 5.13m Shanghai 4.26m Guangzhou 3.53m

02 Old Megacity The blocked area  big enough The width bay entrance  narrow Arabian Sea Tidal range may vary over a wide range (4.5-12.4 m) from site to site. A tidal range of at least 7 m is required for economical operation and for sufficient head of water for the turbines. 2km Mumbai Mahim bay

02 Old Megacity Shanghai Guangzhou 1.7km Heng-sha-xiang Chang-xing-xiang Shanghai Guangzhou Shizi Ocean 3.1km

02 Old Megacity India Mumbai, Mahim bay - 3rd biggest energy consumer - 4th biggest producer of greenhouse gases - Suffer from electric power shortage Mumbai, Mahim bay tidal current power + wave power + wind power

03 New City North Korea Import 94.5% Export 97.2% Potential of tidal power = 4700MW

03 New City 5.53m 5.91m Oong jin Sunwi Do 8.13m 6.64m Tae Yeon peong do Chin-nampo

03 New City 0.6 km Oong Jin 1.0 km Sunwi Do

03 New City 1.6 km Tae Yeon peong do 0.85 km Chin-nampo

03 New City Chin Nampo Stable energy supply to Pyeong Yang 60 km - Biggest trade port - Factories Chin Nampo

generation of electricity 03 New City Intermittent generation of electricity ecosystem destruction Pumping-up power plant Wind power Realtime monitoring

04 Q & A Any Questions