Entering data on fuels & heat
On the page enter data you will find general information about filling in an Envirometer and how to operate the entry screen. Below, you will find specific information about entering data on fuels & heat. In finetuning you can select which items are shown in your Envirometer.
Entering data on district heating
The ‘fuels’ category standard only shows natural gas. You can go to ‘finetuning’ and select the entry screen for different types of heating. Read the information on the left to make your choice.
Gas use per section of a building
If an Envirometer is created for a section of a building that shares its heating system with another section of the building that is not included in this Envirometer, it can be useful to estimate the share of this section in the total gas use for heating. Preferably, the gas use is divided pro rata in accordance with the volume (m3) of the various sections. If this information is not available, the division can also be based on the floor areas, particularly if the heights of the sections are similar.
Of course, this division is only fair if the heating in both sections is handled in the same manner:
- similar utility hours (instead of comparing 24 hours with 9 hours a day)
- similar temperature settings (instead of comparing frost-free transit storage with offices)
Mag je de CO2 die tomaten (of andere groente) opnemen aftrekken van de totale CO2-uitstoot?
Heat Pump and Thermal Storage (Heat and Cold Storage)
Fill in the energy consumption of the heat pump in the following way:
- Include the energy consumption of the heat pump in the theme ‘electricity’. This will become part of the environmental impact (graphs) and the indicators. This means that your electricity consumption (per m2 or per fte) will be higher in comparison to heating with a central heating boiler or such.
- If the amount of heat produced from the heat pump can be measured, then you can enter this data at ‘Fuels and Heat’, ‘Self- generated heat’. This will NOT be included in the environmental impact (graphs) but WILL be included in the indicators (e.g. the indicator ‘thermal efficiency CHP).
- If the amount of cold produced by the heat pump is measured, then it’s possible to fill in this measured cold at ‘Fuels and heat’, ‘Self-generated cold’. This will not be included in the environmental impact (graphs).
Buildings heated with a heat pump (in- or exclusive thermal storage) have a higher electricity consumption than when natural gas or another fuel would be used for heating. On the contrary, the environmental impact of fuels are much lower. This is important to consider during the interpretation of the graphs when you compare your building with a building heated by fuel.
Is it allowed to subtract the amount CO2 that tomatoes (or other vegetables) absord from the total amount of CO2 emission?
No, this is not allowed. The CO2 tomatoes absord comes either out of the fresh air or out of the flue gasses emissed by the kettle. This means that it does not matter where the CO2 comes from and because of this reason CO2 absorbed by tomatoes cannot be subtracted from the total amount of CO2 emission.