Proof of origin portal for electricity

Elering has developed a proof of origin portal for electricity located on the green.elering.ee website, i.e. in Elering’s Renewable Energy Information System. The portal displays the origin of the consumed electricity to consumers whose personal identification code or registry code is linked to a metering point in Elering’s Electricity Data Warehouse, i.e. in whose name the electricity contract is held.

Proof of origin portal for electricity

When logging in to green.elering.ee, authenticating through a bank or using Smart-ID, an ID card or Mobile-ID, the following data is displayed:

1. The graph of electricity of unverified origin consumed in Estonia displays the latest published residual mix and its CO₂ emissions. The origin of electricity can only be proven by erasing guarantees of origin. More information about guarantees of origin is available on Elering’s website.

2. The My Electricity graph displays information about the origin of the electricity consumed and the average CO₂ emissions of electricity.

• If all consumption is proven by guarantees of origin, the origin of electricity is displayed by type and CO₂ emissions are displayed according to the deleted guarantees of origin. If part of consumption is certified by guarantees of origin, the residual mix for the respective year is used for the part not certified by guarantees of origin.
• If the residual mix has not yet been published for the respective year, the latest published residual mix has been used.
• If guarantees of origin have not been deleted to prove consumption, the graph displays data on electricity of unproven origin consumed in Estonia, i.e. residual mix.

If the residual mix has not yet been published for the respective year, the latest published residual mix has been used.

If guarantees of origin have not been deleted to prove consumption, the graph displays data on electricity of unproven origin consumed in Estonia, i.e. residual mix.

The consumed electricity is the sum of the consumption of all metering points. Self-produced and consumed renewable energy is not taken into account. If renewable energy guarantees of origin have been deleted against your consumption, the second page, the geographical origin of renewable electricity, will display the country of origin of the consumed renewable electricity.

You can download a confirmation letter in PDF format regarding the amount and origin of your electricity consumption for the past calendar year. 

3. The electricity supplier’s graph displays information about the origin of the electricity supplied and its CO₂ emissions. Published residual mix is used for the part not certified by guarantees of origin. Information for the calendar year is displayed on the electricity supplier’s graph when the residual mix for the year in question has been published. The origin of the electricity supplied by an electricity supplier is displayed across the entire sales portfolio and this does not mean that every consumer consumes electricity of the same origin. For the consumer, the origin of electricity is only proven by the use of guarantees of origin.

Background

Elering has developed and manages an electronic database of guarantees of origin (subsection 32¹⁰ (1) of the Energy Sector Organisation Act). When selling renewable energy to a consumer, the supplier must delete the corresponding number of guarantees of origin from the register for the benefit of the person to whom the renewable energy was sold and for whose consumption the origin of energy is being certified. A guarantee of origin can be deleted from the electronic database of guarantees of origin to prove the origin of energy consumed in Estonia.

Elering calculates and publishes the residual mix of electricity (subsection 32¹⁰ (9) of the Energy Sector Organisation Act).

Residual mix is a quantity of electricity the origin of which is not proven to consumers by guarantees of origin. The shares of different energy sources in the residual mix are calculated and published by 30 June for the previous calendar year. More information about the results and methodology of residual mix is available on Elering’s website.