This study examined the carbon emissions baselines of power generation for the year 2008 in three regions of Malaysia, namely Peninsular Malaysia, Sabah and Sarawak. It documents the principles and calculations of the baselines for grid connected electricity sector projects for Peninsular Malaysia, Sabah and Sarawak. The results will be applicable to grid-connected electricity generation form renewable sources such as small-scale projects in Malaysia, as mentioned under the applicability criteria of the baseline methodology used.