# Emissions show up as '0' in project breakdown in Excel

**URL:** <https://community.realtimelca.com/t/emissions-show-up-as-0-in-project-breakdown-in-excel/380>\
**Category:** Help\
**Created:** [October 21, 2025, 7:46am UTC](https://community.realtimelca.com/t/emissions-show-up-as-0-in-project-breakdown-in-excel/380 "2025-10-21T07:46:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ELA](https://avatars.discourse-cdn.com/v4/letter/e/a9adbd/32.png) [@ELA](https://community.realtimelca.com/u/ELA)\
**Post date:** [October 21, 2025, 7:46am UTC](https://community.realtimelca.com/t/emissions-show-up-as-0-in-project-breakdown-in-excel/380/1 "2025-10-21T07:46:11Z")

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Hello Community

In a recent project, when exporting the data to Excel, I found that some of my materials show an emission of zero. The materials are mapped in the correct declared unit, the emission in the window that you click in the browser shows that this particular material has an emission. Why would it show as zero in the Excel export? Is it also counted as zero in the emission calculation in the browser?

See a screen grab of an example below:

 ![image](https://europe1.discourse-cdn.com/flex005/uploads/realtimelca/original/1X/ac891c7501c1361038fc65bb8555691ac4d9d30d.png)

It is maybe important to note that this project is very big and I’ve only turned on the material types that are used in one specific place. Maybe the amount of data is messing with the calculations?

Best regards, ELA

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**Author:** ![Lucas\_Mikkelsen](https://dub1.discourse-cdn.com/flex005/user_avatar/community.realtimelca.com/lucas_mikkelsen/32/510_2.png) [@Lucas\_Mikkelsen](https://community.realtimelca.com/u/Lucas_Mikkelsen)\
**Post date:** [October 22, 2025, 1:09pm UTC](https://community.realtimelca.com/t/emissions-show-up-as-0-in-project-breakdown-in-excel/380/2 "2025-10-22T13:09:27Z")

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Hi @ELA

I’m assuming this is a Danish project you’re working on. When you assign classification codes to your constructions/materials, you’re specifying which building part they belong to.

We’ve set it up so that the classification codes are aligned with _Appendix 2, Table 6_ from BR18. This means that any components omitted from Table 6 are also omitted from the classification codes, and therefore they are counted as 0 when you generate your report. However, they are still included in the calculations on the website.

That’s why it’s important to assign the correct classification codes. I hope this might answer your question.

If not, please send an email to **[support@realtimelca.com](mailto:support@realtimelca.com)**, and we can arrange for me to take a deeper look into it.

/Lucas