Home > By Topic > G8 > The International CHP/DHC Collaborative > Data > Global CHP/DHC Benefits > CO2 Emissions CO2 Emissions and Fuel ConsumptionOne of the main benefits of CHP is its ability to reduce CO2 emissions from power generation through its higher generating efficiency compared to conventional power plants that do not use their heat output. The analysis also shows that the higher efficiency of the Accelerated CHP Scenario leads to a reduction in fossil fuel use in power generation, despite the fact that the Alternative Policy Scenario replaces some fossil fuel generation with nuclear power. In 2015, the fuel use in the ACS is 1.1% less than the APS; in 2030, the saving rises to almost 6% of total fossil fuel use in the 13 countries. This reduction in fuel use leads to significant cuts in GHG emissions arising from new power generation. The figure below shows the comparison between the two scenarios for carbon dioxide emissions arising from the new power capacity. CO2 Emissions and Fuel Consumption  In 2015, in the ACS, CO2 emissions arising from new generation are reduced by more than 4% (170 Mt / year), comparable to around 40% of the EU-25 and US Kyoto targets (the difference between 1990 Kyoto base year emissions and the respective targets), while in 2030 this saving increases to more than 10% (950 Mt / year). This is comparable to:
The CO2 emissions reduction from CHP can therefore be one of various approaches to achieve global climate stabilisation (figure below). Emissions Scenarios
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