Sheet Glass Industry is one industry that uses 75 % natural gas energy and 25 % electricity. Using the Intergovernmental Panel on Climate Change, IPCC-2006 emission calculation method, the average greenhouses gas (GHG) emissions obtained from the calcination process obtained 112 211 t CO2 yr(-1) per plant and an average emission factor (EFkl) of 0.18 CO2 t(-1) yr(-1) of pull. With the technology of converting heat into electrical energy, residual combustion as flue gases has the potential to be used to produce electrical energy. Referring to the analysis and calculation; one of factories has potential to generate 0.8 MW to 3 MW electric energy. It's efficiency of 10 % to 40 % so that it can be calculated as a component of GHG emission reductions whose value is 4.6 t CO2 yr(-1) to 18.7 t CO2 yr(-1) per plant. With this reduction, each of the GHG emission and emission factors per plant dropped to 93 442 t CO2 yr(-1) and 0.16 CO2 t-pull(-1)