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Entering data on electricity

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 electricity. In finetuning you can select which items are shown in your Envirometer.

‘Of which’ items

Night-time use, production and various types of green power are ‘of which’ items, meaning that the quantity entered for these items should be equal to or smaller than the total quantity of electricity that was purchased. They do not affect the environmental score or the CO2 balance, but are used for calculating the efficiency indicators:

‘Of which green power’ does result in a decreased environmental burden. The decrease depends on the type of green power.

Green power

In finetuning you can choose from various types of green power. Green power from old hydropowerplants is (as of january 2015) treated like 'conventional electricity' because it does not reduce the environmental burden.

Self-generated power

If you have a CHP installation, a windmill, solar cells or other sources of self-generated power, activate (via finetuning) the necessary items for ‘self-generated power’, so that you will be able to enter the data in the Envirometer.

Returned green power

Do you return green electricity (from Sun or Wind) to the electricity grid? You can enter that in two ways, it has the same effect:

Note: if you purchase green electricity, only the net electricity (purchased minus returned) is green.
Note: if you supply more power than you buy, you are an electricity supplier. In this case, you will get a negative CO2 emission for electricity in your CO2 footprint. It may be argued that this electricity production is outside the scope you want tot include in your footprint. Do you want to prevent this? Enter exactly the amount of purchased electricity as returned electricity.

Power from cogeneration or combined heat and power (CHP)