News - 2017

Publication of the CSI GNR 2015 data

Geneva, 21 November 2017

The "Getting The Numbers Right" (GNR) 2015 dataset has been launched officially. This year's report demonstrate trends supporting continuous efforts of the cement sector in further mitigating its CO₂ emissions. Full details including historical information, is available online at

The GNR has been publishing annual report about energy efficiency and CO2 emissions from the worldwide cement industry for the eleventh (11th) year in a row. The 2015 dataset consolidating information from 939 cement manufacturing facilities (such as integrated plants and grinding centres) around the world. These facilities produce approximately 22% of global cement production. 81% of the data provided is independently assured.

The cement industry continues to lead in transparency on emissions reporting and continues to act on mitigation using the 4 main levers:
GNR launch banner image
This year we have reworked the report format in line with many user recommendations. Importantly, the identifier of each parameter now refers to the relevant line in the CSI's "CO2 and Energy Accounting and Reporting Standard for the Cement Industry". This allows users to see clearly the definition of each parameter.

The 2015 results show the cement industry is maintaining performance levels of recent years.

Global data 1990201320142015
Clinker (grey) volume Million tonnes 423 643 671 680
Cementitious volume Million tonnes 512 867 905 916
Gross specific emissions (cementitious) kg/tonne 761 636 637 634
Net specific emissions (cementitious) kg/tonne 755 616 615 617
Kiln fuel use MJ/tonne clinker 4254 3502 3499 3511
Specific electricity use (cement) kWhrs/tonne 119 102 101 100
Specific electricity use (clinker) kWhrs/tonne    74 74 73
% clinker in cement % 83 74.9 74.6 74.9
% alternative fuel use % 2.0 15.3 15.7 15.9
  • Net CO₂ per tonne cementitious reduced by 18.3% from 1990 baseline
  • Progress made in replacing less efficient wet and semi wet kiln technologies with more efficient dry preheater and precalciner kiln designs
  • Specific electricity use in clinker is on a modest downwards trend
  • Update of the Technology Papers in 2017describing state-of-the-art and anticipated technological developments that can further enhance mitigation of CO₂ emissions in cement production
  • Innovations in the development of CCS/U and new binder materials are contributing to the potential for long-term improvement


GNR 2015 graph net CO2 emission world


GNR participants use the CSI CO₂ and Energy Accounting and Reporting Standard for the Cement Industry to provide the information. The GNR team welcomes comments and queries from all stakeholders which can be submitted to This email address is being protected from spambots. You need JavaScript enabled to view it. .