This study is conducted with aims to develop Algebraic Modelling System power station. Energy source switching as an initiative method for CO achieve a 40% of CO 2 emission reduction, the model suggested that 669.8 MW of electrici supply generation should be produced from solar energy. This indicates that 2.4 million tons of CO 2 per year could be avoided. This scenario had increased the electricity cost (EC) by 86.4% to make the EC is MYR 1.34/kWh. These amounts hit the current EC value of MYR 0.18/kWh. The conclusion of this study shows that Malaysia has a strong potential to implementation solar energy as an approach in reducing CO 86.4% to make the EC is MYR 1.34/kWh. These amounts hit the current EC value of MYR 18/kWh. The conclusion of this study shows that Malaysia has a strong solar energy as an approach in reducing CO 2 emission.; carbon dioxide; optimization; fuel switching

Landfill gas (LFG) like any other greenhouse gases (GHG) is a threat to the environment; hence its mitigation through effective utilization is necessary. The objective of this study is to estimate the amount of LFG captured using IPCC methodology and then develop optimization model for the LFG utilization for green energy production for Iskandar Malaysia. Of the three MSW Scenarios considered, the most appropriate was Scenario MIX, giving projection of MSW to landfill ranging from 600,000 tons in 2010 to 711,000 tons in 2035 for Iskandar Malaysia. From this, a mean annual LFG capture of 21,672 tons was estimated. The Mixed Integer Programing model considered Scenario ST as the more appropriate of the two LFG Scenarios, favoring combined heat and power generation with steam turbines over other options. The optimal result yielded a mean annual electricity and steam generation of 20,588 MWh (2.3 MW) and 150 million MJ respectively. The mean electricity generation represents 0.16% and 0.02% of the maximum electricity demand for Iskandar Malaysia and Peninsular Malaysia respectively. Additionally, GHG emission reduction of 12,000 tons CO2 equivalent was achieved. The findings revealed the potentials in LFG capture from the case study in terms of green energy and GHG emission reduction for sustainable development.