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SUSTAINABILITY LIBRARY 2023 Climate Greenhouse gas emissions

Greenhouse gas emissions

Emissions 2023

Lerøy is continuously working on improving its monitoring and reporting of greenhouse gas emissions.  Information regarding our greenhouse gas emissions is crucial for understanding and responding to environmental challenges as well as to being able to identify improvement opportunities.

In 2023 the Company continued to which aimed to enhance Lerøy’s reporting processes and practices. The Group has strengthened its reporting routines; however, we acknowledge that we need to focus on further improvement of quality of the reported data to ensure that the reporting is more accurate, complete and transparent.

A key change which was introduced in 2022 was that a major part of  well-boat and service boat activity (time chartered vessels) was moved from Scope 3 to Scope 1 reporting including operating leases (as defined by IFRS 16) in Scope 1 accounting (for more detailed information regarding operating leases, please, visit This change has had a significant effect on Scope 1 reporting results - substantial increase of Scope 1 emissions compared to levels. Emissions from well-boats and service boats represent approximately 22% of total Scope 1 emissions in 2023. During 2023 Lerøy continued to facilitate closer cooperation with shipping companies that provide well-boat and service boat services and has worked on enabling the shipping companies to improve their procedures for gathering and reporting of relevant data as well as on strengthening reporting processes internally.

The Group’s Scope 1, 2 and 3 GHG emissions in 2023 have decreased with 1,48% (18 033,9 tCO2e) compared to 2022 levels.

Scope 1 have decreased with 1,09% compared with 2022 levels.

Scope 2 emissions have increased with 8,8%.

Scope 3 emissions have decreased with 1,63%.

The Group does not produce a significant amount of ODS and therefore does not report production of ODS.

NOx (Nitrogen Oxides) and SO2 (Sulphur Dioxid) Calculations  

In 2023 Lerøy has emitted 1283,81 tonnes NOx and 44,09 tonnes SO2 (Sulphur Dioxid). The basis for calculating the numbers is our Scope 1 reporting.

The organization does not have significant emissions of persistent organic pollutants (POP), volatile organic compounds (VOC), hazardous air pollutants (HAP), particulate matter (PM) or other categories of air emissions.

Data source and method: Statistics Norway (2022) 

Science Based Targets

Lerøy has set ambitious science based targets to reduce our carbon footprint: We aim to reduce our CO2e emissions by 46% by 2030 compared to 2019 levels. (ref: Climate Policy). Lerøy has defined 2019 as the base year for our science-based climate target as this was the first year all operating segments in the Group were conducting greenhouse gas emission reporting for Scope 1, 2 and 3. Lerøy has reduced its overall Scope 1, 2 and 3 emissions with 15,46% from 2019 levels.

Lerøy has also committed to become climate neutral by 2050.

The Group is in the process of evaluating changing its Science Based Target base year. The organization needs to go through a thorough assessment, evaluate pros and cons for either keeping or changing the base year.



The Group’s operating segments are the following:
  • Wild Catch;
  • Farming;
  • Value Added Processing, Sales and Distribution (VAPSD).

The Group’s operating segments are the following:

  • Wild Catch;
  • Farming;
  • Value Added Processing, Sales and Distribution (VAPSD).

The reported emission figures have been collected throughout 2023 from relevant suppliers via invoices and are based on the same data sources as the figures reported in Lerøy’s 2022 annual report.   

Lerøy’s GHG emissions are reported in accordance with the GHG Protocol Corporate Accounting and Reporting Standard. The Group uses operational control approach for consolidating its GHG emissions accounting. It means that emissions from operations, over which Lerøy have operational control, are included in Scope 1 and 2 reporting. Indirect upstream and downstream emissions relating to its operations are accounted for in Scope 3.  Reporting units account for their use of fossil fuels, refrigerants, electricity, district heating/cooling, water usage, waste composition (incl. methods of waste disposal). Climate account statements are consolidated in the same manner as financial statements showing aggregated results for the Group’s entities (reporting units).

The Group’s Scope 3 emissions are reported in accordance with the GHG Protocol Corporate Accounting and Reporting Standard (Corporate Value Chain (Scope 3)). The Group has mapped its “carbon hotspots” and identified the main sources of greenhouse gas emissions which are included in the Group’s Scope 3 climate accounts. For more detailed information, please, see table Scope 3 Overview per Category below.


Emission factors

Emissions data for Scopes 1, 2 and 3 cover reporting of the following greenhouse gases: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and HFO (hydrofluro-olefins).  There are seven main GHGs that contribute to climate change, as covered by the Kyoto Protocol: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulphur hexafluoride (SF6) and nitrogen trifluoride (NF3).

The Group has had 1290 tCO2e biogenic CO2 emissions in Scope 1 and 304 tCO2e in Scope 3 in 2023. 

Biogenic emissions are CO2 emissions related to the natural carbon cycle, as well as those resulting from the combustion, harvest, digestion, fermentation, decomposition, or processing of biologically based materials.

Scope 1

Sources for Scope 1 emission factors used for calculation of tCO2e are DEFRA (Department for Environmental Food and Rural Affairs, UK Government), 2023, The Norwegian Environment Agency 2023 as well as National standard factors 2015 24th February, A-gas product information guide, Honywell Solstice N40 Product sheet, 2014.

Scope 2

There are two types of Scope 2 emissions: location-based, and market based. Location-based Scope 2 emissions are calculated based on the average emissions factor for the grid region where the organization consumes electricity. Marked-based Scope 2 emissions, on the other hand, take into account the specific contractual instruments that an organization has in place to purchase renewable energy certificates or power purchase agreements.

Nordic Electricity Mix 2023: Location-based emission factor

Calculation of the emission factor Electricity Nordic Mix Location-based emission factor for 2023 shows a slight increase from 2022. The factor used for 2023 accounting is 28 gco2/kwh which corresponds to an increase of 8% from 2022 (26 gco2/kwh). To calculate the factor, statistics from IEA (International Energy Agency/OECD were used. Every year, the IEA calculates national emission factors for all countries based on physical production statistics (location-based method), which are again based on statistics obtained from national system operators and statistics authorities. The Nordic average factor is calculated as a weighted average of the Swedish, Finnish and Danish emission factor. The factors for 2023 are based on official statistics from 2021. The national factors are weighted with the electricity production in each individual country, i.e. gross electricity production. The distribution loss is not included in the factor (this must be reported as Scope 3 emissions according to GHG protocol

Electricity Nordic Mix 2023: Market-based emission factor

The emission value used for untracked electricity (residual mix EF) when reporting using the factor “Electricity Nordic Mix” is calculated by taking a weighted average of the national residual mix enission factors for the 4 included Nordic countries (Norway, Denmark, Sweden, Finland). The national residual mix emission factors are sourced from the report “European Residual Mixes 2022” (AIB, 2023), and are based on data for 2022. In 2023, the market-based emission factor is 328 kgCO2e/kWh.

For consistency with the location-based calculation, which is based on emissions data from IEA for the same 4 Nordic countries for 2021 (last available full year), the same weighting percentages are used in the calculation of the market-based figure. These percentages are based on each country’s share of the national electricity generation for all 4 countries during 2021.

Emission factors for electricity and heat generation for France, Italy, Portugal, Spain and the Netherlands 

Source of emission factors related to emissions from electricity and heat generation (for both location and market based emissions) for France, Italy, Portugal, Spain, the Netherlands is IEA Emission Factors database (2023), AIB (2023), European Residual Mixes 2023, Energy Stattistics Data Browser.

Emission factors for electricity and heat generation for Turkey

IEA Emission Factors database (2023), there is no residual mix EF available, location-based EF applied in market based calculation, IEA (2023), World Energy Balances (database).

Emission factors for electricity and heat generation for the USA

IEA Emission Factors database (2023), 2023 Green-e Residual Mix Emission Rates (2021 data), IEA (2023), World Energy Balances (database).

Guarantees of Origin (GOs)

The Group has purchased Guarantees of Origin (GOs) in 2023 Information regarding companies which have purchased GOs as well as the percentage share that covers the consumption is reported in Cemasys (the Group’s internal reporting system for GHG emissions accounting).

Regarding market-based emissions – the choice of emission factor using this method is determined by whether the business acquires Guarantees of Origin or not. For electricity without the GOs, the emission factor is based on the remaining electricity production after all GOs for renewable energy are sold. This is residual mix, which is normally substantially higher than the location-based factor.

Scope 3

Sources for Scope 3 emission factors used for calculation of tCO2e are DEFRA (Department for Environmental Food and Rural Affairs, UK Government) 2023, International Energy Agency (IEA) 2023 Emission factors Greenhouse gas emissions of Norwegian seafood products in 2017, SINTEF study, Emission factors from fish feed producers 2023, Database Ecoinvent 3.8; 3.9; 3.9.1; 3.10 as well as supplier specific emission factors.

Info: Expand table for more details

Scope 3 Overview per category (2023)
Category tCO2e
Purchased goods and services
519 581,3

The consumption data is based on purchased volumes throughout the year. Data on fish feed carbon intensity is collected from relevant fish feed suppliers which account for 99,5% of all fish feed purchased. The calculated GHG emissions for purchased fish feed also include transportation emissions, relevant Scope 3 emissions, emissions related to land use change (LUC) calculated with economic allocation as method. 

EPS boxes (Styrofoam boxes with lids). Information regarding EPS boxes (number, type, properties) is collected from the Group’s companies throughout the year.

Plastic bags/sheets and single use hygiene plastic items. Information regarding plastic bags/sheets  and single use hygiene plastic items is collected from the Group’s companies throughout the year.

Vacuum packaging/film. Information regarding vacuum packaging/film is collected from the Group’s companies throughout the year.

Cardboard/carton boxes. Information regarding cardboard/carton boxes  is collected from the Group’s companies throughout the year.

Rope and feeding tubes. Information regarding rope and feeding tubes is collected from the Group’s companies throughout the year.

Municipal water. Information regarding consumed municipal water is collected from the Group's companies throughout the year.

Capital goods


Fuel and energy related activities
42 817,6

Well to Tank (WTT)**. Calculations based on the existing consumption data volumes collected from the Group’s companies throughout the year. The calculation is based on the reported consumption data for Scope 1 and 2 (for more detailed information, see table Total Consumption of Fossil Fuels (Scope 1).

Upstream transportation and distribution (outbound transportation)
421 293,1

Transportation services (sea transportation,  service boats, well boats***). Consumption data collected from sea transportation/ well- boat service providers (calculations include WTT).

Transportation of produced products to customers. Information collected from the Group’s Logistics department. The calculations are based on distance from capital to capital. The emission factors used are determined by type of transportation mode.

Waste generated in operations

Waste - data on  waste volumes, waste composition (incl. methods of waste disposal) is collected from the Group’s companies throughout the year.

Business travel


Air travel (business travel by air) -  information regarding distances traveled is collected from travel agent the Group uses (including WTT).

Employee commuting

Employee commuting – estimation based on SSB (Statistisk Sentralbyrå) for Norwegian operations, TRAFA (Transport Analysis) for Swedish operations, and STATISTA for operations in the Netherlands. For all other operations - INSEE statistics, ACEA (European Automobile Manufacturer’s Association) well as official government websites are used.

NB! The main difference between the methodology used in 2022 and 2023 is that in 2023 we have chosen to report the number of kilometers divided by various transport methods for commuting per country in 2023. The level of detail for the methodology used for 2023 gives a more realistic picture of the employee commuting emissions per country. We have made an assumption that the distribution is 25% between four selected transport categories (tram, bus, subway and train). 

Upstream leased assets


Downstream transportation and distribution

Downstream transportation and distribution  - transportation of  products carried out by the customers themselves. Information collected from the Group’s Logistics department. The calculations are based on distance from capital to capital. The emission factors used are determined by the mode of transportation.

Processing of sold products

Processing of sold products – calculations consist of two parts –  part one - estimated use of electricity for storage of fish in the country of consumption before the product is sold to end consumer. Part two – estimated emissions related to third party processing.

Use of sold products


End-of-life treatment of sold products

End of life treatment –  organic waste estimated share (%) of non-edible fish.

Downstream leased assets






*For more detailed information regarding the categories, please visit Corporate Value Chain (Scope 3) Accounting standard

**A Well-to-Tank emissions factor, also known as upstream or indirect emissions, is an average of all the GHG emissions released into the atmosphere from the production, processing and delivery of a fuel or energy vector.

*** Well-boats and service boats which are not classified as operating leases (ref. definition  IFRS 16) are included in Scope 3 emissions since Lerøy does not have operational control over the leased assets held under an operating lease.

GHG emissions intensity ratio per operating segment

GHG Intensity ratio 2023

  • Farming = Scope 1+2 tons CO2 emissions in Farming segment/ tons gross growth: 0.17
  • Wild Catch = Scope 1+2 tons CO2 emissions in Wild Catch segment/ tons headed/ gutted fish: 1.16
  • VAP, Sales and Distribution = Scope 1+2 tons CO2 emissions in VAP, Sales and Distribution/ tons products sold: 0,061
  • Total GHG Intensity ratio 2023 Lerøy Seafood Group = Scope 1+2 tons CO2 (all segments)/ tons gross growth/ tons headed/ gutted fish/ tons product sold: 0,33

NB! Scope 3 emissions are not included in the GHG emissions intensity ratio calculation, however Scope 3 is a significant contributor to GHG emission intensity. The Group is working on improving its reporting routines to be able to allocate Scope 3 emissions to the respective segments in the Group.

Unit 2019 2020 2021 2022 2023
135 025
189 267
205 728
220 026
234 243
Farming MWh 98 662 134 355 144 203 148 280 153 993 153 993
Wildcatch MWh 19 267 10 803 25 380 24 137 25 178 25 178
VAP, Sales & Distribution MWh 14 664 25 560 29 532 37 388 55 072 55 072
Unit 2019 2020 2021 2022 2023
22 097
23 938
23 176
57 947
59 264
Scope 1 tCO2e 18 249 18 429 18 706 54 092 54 952
Scope 2 (Location based) tCO2e 3 847 5 508 4 470 3 855 4 312


99 141
108 540
120 985
113 191
111 223
Scope 1   tCO2e 110 518 107 499 120 237                112 541 110 517
Scope 2 (Location based)  tCO2e 705 1040 748 650 705
VAP, Sales & Distribution
4 578
5 268
6 942
7 667
7 335
Scope 1  tCO2e 2 593 1 881 2 579                     3 281 2 593
Scope 2 (Lokasjons basert)  tCO2e 4 742 3 387 4 362                     4 464 4 741
1 418 557
1 422 388
1 308 278
1 217 274
1 199 239
Scope 1  tCO2e 118 785 127 810 141 523                169 913 168 064
Scope 2 (Location based)  tCO2e 7 033  9 937 9 581                     8 970 9 759
Scope 3  tCO2e 1 293 255 1 284 642 1 157 174 1 038 392 1 021 417
Annual Scope 2 Market-based GHG emissions:
   tCO2e 28 443 50 409 49 208 44 843 58 359


  Unit  2021 2022 2023
Diesel1 liter 2 893 492 6 264 465 6 353 276
Marine Gas Oil (MGO)2 liter 3 461 428 12 994 859 13 352 186
Petrol3 liter 471 823 558 852 546 494
Fuel oil liter 45 916 661  - 
Refrigerants4 kg 379 140 454
Diesel1 liter 10 789  7 927 23 785,4
Marine Gas Oil (MGO)2 liter 43 309 534 40 341 435 40 057 005
LPG (Propane) kg 2 013 704 463
Petrol3 kg 486 169 26
Refrigerants4 kg - 677 2 355
VAP, Sales & Distribution        
Diesel1 liter 476 053  600 168 594 540
Petrol3 liter 44 521  107 091 91 287
Natural gas m3 189 628  478 537 260 043
LPG (Propane) kg 36 588  79 842 99 808
Fuel oil liter 21 795  -   - 
Refrigerants4 kg 1 680  5 578 809
Diesel1 liter 3 380 334 6 872 560 6 971 601
Marine Gas Oil (MGO)2 liter 46 770 962 53 336 294 53 409 191
Petrol3 liter 516 830 666 111 637 807
Natural gas m3 189 628 478 537 260 043
LPG (Propane) kg 38 601 80 546 100 271
Fuel oil liter 67 711  661  - 
Refrigerants4 kg 2 059 6 395 3 618

1) Diesel includes Diesel (100% fossil), Diesel with added second-generation biofuels (avg. 6% FAME/HVO), Diesel (B7), Diesel (B10) and Diesel (B30 HVO)

2) MGO includes 100% fossil MGO and MGO with added second-generation biofuels (avg. 6% FAME/HVO)

3) Petrol includes Petrol (100% fossil), Petrol (E5), Petrol (E10)

4) Refrigerants include R-404 A, R-407 A, R-448 A, R-452 A, R-507 A and R-717 (Ammonia)