FEASBILITY STUDY
In 1999, a consortium of four firms, including SCS Engineers (SCS) and Korea Power
Engineering Company (KOPEC), was selected by the Korea Environmental Management
Corporation (EMC) to conduct a landfill gas to energy feasibility study for Sudokwon Landfill.
The study evaluated a range of alternatives, including:
• Reciprocating engines;
• Simple cycle combustion turbines;
• Combined cycle combustion turbines;
• Steam cycle power plant;
• Co-firing in a conventional electric power plant;
• Co-firing in a sludge combustion facility (with energy recovery); and
• Pipeline quality gas (molecular sieve and membrane process).
All of the alternatives were evaluated on the basis of:
• Net energy output potentially produced;
• Air emissions;
• Raw water requirements;
• Wastewater production (quantity and type);
• Construction cost;
• Operation/maintenance cost;
• Total energy product production cost; and
• Net annual revenue (based on energy product production cost versus energy product
value).
Key market prices for energy products at the time of the feasibility study were as follows:
Electric power 48 won/kWh (4.4¢/kWh)
Medium Btu gas 78.5 won/Nm3
($3.76/mmBtu)
Pipeline quality gas 181.3 won/Nm3
($4.83/mmBtu)
The feasibility study concluded that a 50 MW steam cycle power plant should be constructed.