Ⅰ. Introduction of Samcheok Green Power

Ⅰ. Introduction of Samcheok Green Power

Construction for the Samcheok Green Power Project Name : Samcheok Green Power Unit 1,2 Location : East Coast of Korea Before construction 호산항 작진항 Under construction Area : about 2.6million m 2 (Land 1.6million m 2 + Sea 1million

Construction for the Samcheok Green Power Capacity : 2,000MW (1,000MW 2units) Fuel : Coal (Subbituminous Coal & Biomass co-firing) Generation Quantity : 15,768 GWh/year (at 90% availability) Major Equipment - Main Equipment (The World`s First Supercritical CFBC Boiler & Turbine 2:1 Configuration) CFBC Boiler 500MW CFBC Boiler 500MW Gen. 1,000MW Boiler - B.O.P : Mech. 20 Package + I&C 13 Package : Supercritical, CFBC : Manufacturer - Foster Wheeler Turbine Generator : Tandem Compound, Reheat, Condensing Turbine : Manufacturer Toshiba

Aerial View of Samcheok Green Power Control Room with Stack Unit2 Boiler Biomass Equip. Coal Shed Unit1 Boiler Unit2 Turbine Unit1 Turbine Small Hydro Power Equip. SNG Equip. 3 rd Fuel Unloading Dock Coal Unloading Dock

Construction Milestones 2009. 8 Planning 2011. 1 Start site grading 2012. 5 Constuction Permit 2012. 6 Excavation 2013. 8 Start pressure part installation 2014. 6 Power receiving 2015. 1 Initial firing 2015.12 Unit 1 COD (43 months from excavation) 2016. 6 Unit 2 COD (49 months from excavation)

Ⅱ. Samcheok CFBC Boiler

Samcheok CFBC Boiler Samcheok Green Power Conditions Outlet Steam Condition - Flow ton/h 1,572 / 1,296 - Pressure bar 255.5 / 52.8 - Temperature deg.c 603 / 603 Fuel Range Design Range HHV (af) Kcal/kg 4,250 Min. 3,750 Moisture (af) % 33.5 Min. 43 Ash (ad) % 4.5 1.21~17 Sulfur (ad) % 0.1 Max 1.0

Samcheok CFBC Boiler Configuration of Boiler Benson type Vertical tube furnace 8 Cyclones per boiler INTREX Heat Exchanger - 4ea S/H and 4ea R/H Regenerative air preheater 8 Coal silos and 1 Biomass silo

Samcheok CFBC Boiler Cyclone Arrangement Steam system Steam Cooled type Compact type Refractory 8 Cyclones per boiler Economizer system Evaporator system Superheater system Reheater system

Plant Condition & Fuel Comparison Comparison Table Division PC Power Plant (Example) (500MW) Lagisza Power Plant (460MW) Samcheok Green Power (500MW) Steam Condition <@BMCR> Flow (SH/RH) Pr.(SH/RH) Temp.(SH/RH) 1,605/1,281 t/h 255/53.78 bar 569/596 1,300/1,102 t/h 275/55 bar 560/580 1,572/1,296 t/h 255.5/52.8 bar 603/603 Environment Condition Sox Nox Dust 40 ppm 50 ppm 15 ppm 69.9 ppm 97.3 ppm 30 [mg/nm3] 50 ppm 50 ppm 15 ppm Design Coal Analysis Heating Value Total Moisture Ash Sulfur 6,080 kcal/kg(hhv) 10 %(AF) 15 %(AD) 0.72 %(AR) 5,015 kcal/kg(hhv) 12 %(AF) 26.1 %(AD) 1.2 %(AF) 4,250 kcal/kg(hhv) 33.5 %(AF) 4.5 %(AD) 0.1 %(AF) Biomass Analysis Heating Value Total Moisture Ash N/A 2268.6 kcal/kg(lhv) 45 % 1.3 % 3773.04 kcal/kg(lhv) 5~15 % 0.7~16.2 %

Plant Configuration (2:1) : Overcome the 500MW capacity limitation Unit 1 Unit 2 CFBC Boiler 500MW CFBC Boiler 500MW CFBC Boiler 500MW CFBC Boiler 500MW Generator 1,000MW Generator 1,000MW World s 1 st 2:1 combined Once Through SC CFB power plant 1,000MW Toshiba 48 inch LSB Turbine

Environmental Equipment - Reduction of Foot Print Past Power Plant <Eco. Outlet> SOx : 1,000 ppm NOx : 180 ppm SCR E.P Wet FGD SOx : 40ppm NOx : 50ppm Dust : 15ppm PC Boiler Samcheok Green Power Gypsum Stack <Eco. Outlet> SOx : 50 ppm NOx : 175 ppm SCR E.P SOx : 50ppm NOx : 50ppm Dust : 15ppm FGD removed CFBC Boiler Stack

Ⅲ. Eco-Friendly Power Plant

Not In My Back Yard NIMBY Stack Coal Stock Yard Ash Pond

Eco-Friendly Multi Complex Office Using Stack Viewing Control Restaurant Office Room Deck New Concept

3 No Power Plant No Visible Coal Storage Ash Recycling Waste Water RECYCLE No Outdoor Coal Stock Yard No Discharge No Ash Pond

Plant Site with Non-visible Coal Storage

Plant Site with Non-visible Coal Storage Existing Power Plant Outdoor Conveyer Samcheok Green Power A.B.C(Air-supported B.C.) & Underground Conveyer Complex spider web of conveyors Non-efficient land use Coal is transferred by air slides

No Ash Pond Existing Power Plant Environmentally Unfriendly Disposal of Ash Waste

No Ash Pond Ash handling system 100% recycling - Using bottom ash for light aggregate, fly ash for cement - Remaining ash will be used for mine back fill - No need for an ash pond Mine Back fill CFBC Boiler ESP Stack Cement Material Producing light aggregate -> selling as a construction material Bottom Ash Fly Ash

Abandoned Mine Backfill by Ash Abandoned Mine

Water Supply : A New Idea Existing Samcheok Choice 1. Recirculation of retention basin discharge Plant Water supply Underground Channel Choice 2. Seawater desalination Water pond Intake from new dam or existing dam Desalination Facility Storage Tank Plant New Dam Construction Expensive, Impact on environment and civil issues Sea

Water & Waste Water Treatment : No Waste Water Discharge Existing Plant Samcheok Dam Retention Desalination Rain water Treated Water Waste Water Treated Water Waste Water Dumped into the sea Discharge : about 900 tons/day Zero discharge by closed loop system of water & waste water treatment system

Ⅳ. Clean Energy Production

1. SNG SNG Coal gasification using low grade coal Keep in LNG storage tank & use for CCPP alternative fuel KOSPO operates a number of CCPP Hard to introduce LNG directly Coal gasification as an alternative fuel

2. Small Hydro-power Using discharge Capacity : 5,500 kw (1,375kW x 4 Units) Type : Kaplan

Ⅴ. Status of Construction Work

1. Status of Construction Work Air Photograph of Samcheok Green Power (Sep. 2013) 3 rd Fuel Unloading Dock Sea Water Disch. Carrying Spot #1,2 BLR Carrying Spot EP Stack and Control BLDG. Switch yard Construction Office Air Photograph of Samcheok Green Power (`2013. 7)

1. Status of Construction Work Construction Photographs

1. Status of Construction Work Construction Photographs

1. Status of Construction Work Construction Photographs

Site Formation : Reduction of earthwork volume with a multi-stage site grading plan Existing Plant Flat Ground Elevation 150m Samcheok Multi-stage Ground Elevation 90m [Save $42 million] 60m Reduce earthwork volume 700 million m3 [Save $83 million]

Unloading Dock : Both Side Access Existing [One Side Access : 2 Piers Required] Length of Jetty : 1,4OO m Samcheok [Both Side Access : 1 Pier Required] Length of Jetty : 900 m