Table 58 and the third paragraph in CN3.2 were accidentally copied in the reissue v.2.0. Table 58 should be ignored and the compliance note should read as follows:
CN3.2 Grid electricity
Heating systems powered by grid electricity can be considered to have zero NOx emissions. If all heating in the building is provided by grid electricity the credits can be awarded by default.
The reason for this is based on the aim of this issue, which is to improve local air quality.
Technical manual to be updated accordingly in next reissue.