GNR FAQs


How to join the Getting the Numbers Right (GNR)?

The CSI has designed the GNR system as an open platform to encourage organizations globally to join and participate, contributing data in order to build the broadest dataset for analysis and use.

Please contact the This email address is being protected from spambots. You need JavaScript enabled to view it. if your organization is interested in finding out more about joining the GNR system.


Are there differences between the emissions calculated for EU Emissions Trading System (EU ETS) purposes and those of the GNR?

Gross CO2emissions (GNR code 312a, CSI CO2 and Energy Protocol line 59) are closely related to the emissions calculated for EU ETS. However, there are small differences:

  • CSI protocol line 44 contains data on emissions from on-site vehicles. Such emissions are not included in the EU ETS calculations.
  • Sometimes defaults or nationally agreed figures are used for the carbon intensity of fuels.

These differences may be around 1% of calculated emissions.


Do gross figures refer to participants' data or are they extrapolated from the GNR participants to the total population of a region or country?

The GNR data on total emissions and total production refer to the facilities participating in the GNR. They are not adjusted to an estimate for the entire population of cement making facilities in a country or region.


Does GNR change its' "historical" data at each renewal?

Each year GNR collects data from participating companies for all years covered by GNR. This allows new participants provide historical data for their facilities. It also allows existing participants provide data for newly acquired facilities. Occasionally, participants uncover errors in their submitted data. GNR accepts such corrections as they make the information in the reports more accurate.


Why are there no report for some countries?

GNR operates within strict governance rules. These rules protect confidentiality and avoid infringement of competition regulations. To ensure confidentiality, reports are only published for regions and countries where there is an adequate number of participating companies and facilities to prevent individual company or facility data to be calculated.


What does "net emissions" mean?

In the GNR the term "net emissions" means emissions without those from fossil alternative fuel. The difference between "net" and "gross" is significant because it is a measure of the reduction in society's emissions due to the use of alternative fuels in the cement industry.


How representative are GNR data?

Global coverage is indicated for each year and it is about 23% of total cement production in the 2012 (the most dataset published). There are however regional differences with some regions, notably Europe, having a much higher coverage that is up to 94% (2012 data) of cement production represented.


Are only CSI companies represented in GNR?

No. Participation to the GNR is part of the membership committment in the CSI Charter, all CSI members are obligated to participate to GNR upon 3 years of joining.  But there are also non-CSI members participating and submitting data which are also represented in the results.


What are the charts with the statistical analysis representing?

Statistical analyses charts report the following information:

  • the x axis report the number of cement plant, clinker or cement produced; and 
  • the y axis reports a given performance indicator (such as energy efficiency or specific net CO2 emissions...).

Plants are sorted from the one with the lowest performance indicator to the one with the highest value. The chart is useful for benchmarking performance.

For instance, if one wants to find out the performance of the plants in the lowest 20%, it should look for 20% on the x axis, and then read on the curve the corresponding value on the y axis.


What is the assurance process for data reported by GNR participants?

Acquisition, processing and handling of data from CSI members must be verified by third party at least every two years (applicable to CSI members only), based on reasonable or moderate assurance level.


What are the control processes in place at system operator level to ensure the quality of data entered into the GNR database?

Data consolidated are automatically verified when uploading data into the GNR database to check their variations from one year to the next and to ensure that values reported fall between acceptable minimum and maximum values. If values appear questionable, data contributors are asked to confirm, and comment or modify the values.


What are the control processes for quality of the indicators available in GNR?

There are extensive control process in place at all levels in the GNR project:

  • Participant level: External verification is required by CSI member companies on the data collection processes used.
  • Control at upload: The collection tools used include error generation to verify -
    • if the data is incomplete;
    • if there's any information is outside specified limits;
    • if changes from year to year exceed what is normally expected within the cement industry; and
    • if specific mass or energy balances are not achieved.

Participants must correct errors or explain the unusual result before upload is accepted.

  • Data base level checks for completeness and coherence are completed by the data manager before GNR reports are generated. All staff of the data manager who have access to the actual database have signed and abide by a confidentiality agreement.
  • An internal project quality review is carried out every 3 years by the project manager.
  • GNR reports, in excel format, are checked individually by the PMC before publication. The PMC do not have access to the data base.

Email the This email address is being protected from spambots. You need JavaScript enabled to view it. for further questions.