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TCAAP Energy Integration Resiliency Framework <br />Energy Source Implementation <br /> <br /> <br /> 44 <br />Additionally, the economic analysis did not take into account any rebates, grants, or savings for which <br />the project could be eligible. These potential funding sources could be used to offset the cost of the <br />initial construction, thus making the initial CHP system more economically attractive. The list of <br />potential funding sources is provided in Exhibit IV. <br />3.2.5. Greenhouse Gas Reduction <br />One of the advantages of a CHP system is the reduction of greenhouse gas emissions due to the higher <br />efficiency of the CHP system. Implementation of a CHP system to meet the energy loads in Section <br />3.2.2.1 could reduce carbon dioxide emissions by approximately 20%, as shown in Table 14. <br /> <br />Estimated Annual Carbon Dioxide Emissions Reductions <br /> Traditional Scenario CHP Scenario <br />Natural Gas Usage 18,581 MMBtu/yr 32,772 MMBtu/yr <br />CO2 Emission Rate1 117 lb/MMBtu 117 lb/MMBtu <br />CO2 Emissions from Natural Gas Usage 1,087 tons/yr 1,917 tons/yr <br /> <br />Electric Usage 4,172 MWh/yr 1,365 MWh/yr <br />CO2 Emission Rate1 1,041 lb/MWh 1,041 lb/MWh <br />CO2 Emissions from Electricity Usage 2,172 tons/yr 710 tons/yr <br /> <br />Total CO2 Emissions 3,259 tons/yr 2,628 tons/yr <br /> <br />Total CO2 Emissions Reduction 631 tons/yr <br />Note: <br />1. https://www.xcelenergy.com/staticfiles/xe/Corporate/CRR2013/environment/emissions-reporting.html <br />Table 14: Estimated annual carbon dioxide emission reductions <br />The greenhouse gas emission savings presented in Table 14 are based upon a CHP operational strategy <br />of meeting the Thumb’s electrical needs from a gas-fired generator. In the event that other renewable <br />energy sources are included in the CHP solution, the greenhouse gas emission reductions would <br />increase.