Self-generating Heat and Electricity

self generated electricity if your installation generates its own electricity, whether from renewable sources or a mix of fuels, you can represent this in the diagram and allocate the generated electricity to your production process(es) the emissions from your self generated electricity will be added to your indirect (scope 2) emissions eu cbam q\&a add self generated electricity right click on the screen and select self generating heat and electricity > self generated electricity select the unit in either mwh or kwh the electricity emission factor is disabled because it will be automatically calculated once you connect any fuels used to produce your electricity if no fuels are connected, the emission factor (ef) will be 0 tco2/mwh, indicating that you are using renewable energy enter the quantity of electricity generated if applicable, add any notes for instance, if your self generated electricity came from solar panels, specify this in the notes field click next if applicable, add a fuel click on the black dot at the edge of the fuel and drag the line to connect it to one of the black dots on the self electricity enter the quantity of fuel you want to send to the self electricity unit click add emissions are calculated based on the amount of fuel used to produce the electricity the example below consumed 5,000 m3 of natural gas in the power unit the platform automatically performs the following calculation 20,418 26 tco2e / 10,000,000 m3 = 0 002042 tco2e/m3 0 002042 tco2e/m3 x 5,000 m3 = 10 21 tco2e electricity emission factor (ef) = 10 21 tco2e / 1 mwh = 10 21 tco2e/mwh edit self generated electricity right click on self generated electricity click edit click next to save your changes delete self generated electricity right click on electricity click delete central heat unit if your installation produces heat centrally and then distributes it to different production processes and/or subprocesses, you can reflect this on the diagram only measurable heat should be considered, i e , heat that is transported through a heat medium such as steam, hot water, liquid salts, etc , and where its flow rate can be measured in pipes, ducts, or similar conduits note if a production process produces or recovers heat and exports it to another process, the emissions from that heat will be deducted from the first process and attributed to the process consuming the heat add central heat unit right click on the screen and select self generating heat and electricity > central heat unit specify the heat efficiency if applicable, add any notes add a fuel click on the black dot at the edge of the fuel and drag the line to connect it to one of the black dots on the central heat enter the quantity of fuel you want to send to the central heat unit click next the amount of heat generated in the central heat unit will be automatically calculated using the net calorific value (ncv) of the fuel you can connect multiple fuels to your central heat unit in the example below, we used natural gas with a net calorific value (ncv) of 0 00003574 tj/m³ therefore, the platform performs the following calculation to determine the total quantity of heat generated 0 00003574 tj/m³ × 1,000,000 m³ = 35 74 tj the platform then accounts for the heat efficiency that was input, which in this example was 70% hence, the heat generated is calculated as 35 74 tj × 0 7 = 25 018 tj the emission factor for heat is calculated by dividing the total emissions associated with heat generation (in tco₂e) by the total heat generated (in tj) 2,041 83 tco₂e ÷ 25 018 tj = 81 6143 tco₂e/tj if you don't assign an ncv value to the fuel and connect it to the central heat unit, no heat quantity will be calculated, and as a result, you won't be able to attribute any heat to the production processes click on the black dot at the edge of the central heat and drag the line to connect it to one of the black dots on the production process enter the quantity of heat you want to send to the production process click add the heat emissions are automatically allocated to the production process based on the amount of heat used in that specific production process in the example below, the entire amount of heat is consumed by the production process, so the total emissions from that heat are attributed to the production process edit central heat unit right click on central heat click edit click next to save your changes delete central heat unit right click on central heat click delete combined heat and power (chp) combined heat and power (chp), also referred to as "cogeneration", is the simultaneous generation of heat and power in a single integrated process the heat produced from chp is recovered for a useful heat consuming purpose in the form of hot water, steam or hot air, whilst the power output is usually electricity add chp right click on the screen and select self generating heat and electricity > combined heat & power specify the source of values what are the eu cbam q\&a ? specify the heat reference efficiency what are the eu cbam q\&a ? specify the electricity reference efficiency what are the eu cbam q\&a ? if applicable, add any notes click next if applicable, add a fuel you can also connect waste gas or heat click on the black dot at the edge of the fuel and drag the line to connect it to one of the black dots on the chp enter the quantity of fuel you want to send to the chp unit click add emissions are automatically calculated using the equations edit chp right click on chp click edit click next to save your changes delete chp right click on chp click delete