To calculate the reduction of CO2 emissions resulting from the reduction of kWh consumed, a series of steps must be followed. Here is how you can do it: 1. Determines the Initial Energy Consumption (kWh): Start by collecting data on the initial energy consumption of the target building, process or activity. This value represents energy consumption before any intervention to improve energy efficiency. 2. Calculates the Reduction in Energy Consumption: It then calculates the difference between the initial energy consumption and the new energy consumption after the implementation of energy efficiency measures. The formula will be: Reduction kWh = Initial Consumption (kWh) - Consumption After Improvement (kWh) 3. Determine the Emission Factor: Every kWh of electricity consumed generates a certain amount of CO2 emissions, which varies depending on the energy mix of your country or region. Check the data on the CO2 emission factor, which is usually expressed in kg CO2 per kWh. 4. Calculates Avoided Emissions: To calculate the avoided CO2 emissions due to reduced energy consumption, use the following formula: Avoided Emissions (kg CO2) = Reduction kWh * Emission Factor (kg CO2/kWh) 5. Result: The result will be the amount of CO2 emissions that you have avoided emitting into the atmosphere due to the reduction in energy consumption. For example, if you have reduced your electricity consumption by 10,000 kWh per year and the CO2 emission factor is 0.5 kg CO2 per kWh, you will have avoided the emission of 5,000 kg (or 5 tonnes) of CO2 per year. For a more accurate assessment, you may want to consider additional factors such as the energy efficiency of specific energy sources and the type of fuel used for heating or heat production. Also, make sure you have accurate data on energy consumption and CO2 emissions for reliable results