Primary energy value / use of electric resistance heating

Hello everyone,

what is the regulation for the calculation of the primary energy factor when using an electric resistance heating system with a boiler?

The EnEV_2009 states in the Federal Law Gazette Year 2009 Part I No. 23, issued in Bonn on April 30, 2009:

"Annex 1
2.1.1 ...For electric current ... the value 2.6 is to be used as the primary energy factor for the non-renewable share."

Why does it say "non-renewable share" there and what about the renewable? Does this mean that if you have a green electricity provider, the factor is equal to 0?

Thank you in advance!

Hello,

...how should the regulation for calculating the primary energy factor when using an electric resistance heater with a boiler be interpreted?

Electricity from the regular grid is always assigned a primary energy factor of 2.6.

...Why does it say "non-renewable share" there and what about the renewable? Does that mean that if you have a green electricity provider, the factor is zero?

"Non-renewable" refers to the share of the electric direct heating in the total demand, which certainly is not 100%. Special tariffs like "green electricity" do not play a role here or are not taken into account.

Regards