Energy consumption and mix

Our energy consumption and mix are shown in the table below: ^{(ESRS E1 par. 35, 37 en 38)}

Methodology and key assumptions:

The energy consumption and mix are taken from the scope 1 and 2 source data of the CO₂-eq footprint. Focus points and assumptions in the applied methodology include:

• Fugitive emissions (such as technical gas leakage, refrigerants and SF₆) do not involve energy consumption and are therefore not included in the table. 

• Our purchased electricity on line 9 includes Guarantees of Origin (GOs).

• The conversion factors used are from DEFRA (Greenhouse gas reporting: conversion factors 2024 - GOV.UK) and the Regional Climate Monitor of the Dutch government (Renewable energy report – Amersfoort)

Based on our NACE codes1, we qualify as a high climate impact sector. This is our energy intensity: ^{(ESRS E1 par. 40 en 41)}

The net income from activities in sectors with a significant climate impact is derived from revenue as reported in note 1 to the consolidated financial statements. ^{(ESRS E1-5 par. 43 en AR 38)}

Our greenhouse gas emissions

We report our greenhouse gas emissions in accordance with the GHG Protocol, broken down into scope 1, scope 2 and significant scope 3 emissions: ^{ESRS E1-6 par. 44)}

Methodology and key assumptions ^{(ESRS E1-6 AR 39)}

In order to report greenhouse gas emissions, we follow the standards of ISO 14064-1 and the international Greenhouse Gas Protocol Corporate Standard, including associated guidelines.

We derive the emission factors from various public and non-public sources, such as the website www.co2emissiefactoren.nl and DEFRA. We regularly check these factors and update them annually. In some cases, we receive emission data directly from external suppliers who determine them using their own calculations. We report in CO₂ equivalents. We explain the methodology and assumptions for the most significant categories per scope.

Scope 1: Direct emissions

Scope 1 includes the direct emissions of greenhouse gases from sources owned or controlled by the company. The breakdown of these emissions is visible in the table above. The largest components in this scope are the technical leakages from the gas grid and the fuel consumption of leased cars and company cars.

The carbon emissions resulting from technical gas leakages are calculated based on OGMP2.0. This methodology is managed by Kiwa. Important variables we provice are lengths and the type of materials of the pipe lines. Also (average) number of leaks, faults, and damages are part of the calculation. The numbers and lengths of our gas grid do not differ significantly year on year. The conversion factor and emission factor used are sourced from www.co2emissiefactoren.nl. Calculations are based on 2023 data. 

Regarding the CO₂ emissions from leased cars and company cars, we use data received directly from the suppliers. This data includes the amount of fuel in liters per type of fuel. Using www.co2emissiefactoren.nl, we calculate the CO₂-eq emissions per type of fuel.

Scope 2: Indirect emissions – electricity and heat

Scope 2 refers to all greenhouse gas emissions from the generation of electricity and heat. As a grid operator, we distribute electricity. During the distribution of electricity, energy is always lost, for example, as a result of resistance. This is reflected in the electricity grid losses. Additionally, we also use electricity in our buildings, and a portion of our leased cars use electricity. We present our CO₂ emissions both on a market-based and location-based approach. Location-based represents the CO₂ emissions based on the physical energy mix on the grid. Market-based represents the CO₂ emissions based on the purchased energy mix.

The majority of our location-based CO₂ emissions relate to electricity grid losses. Electricity grid loss is the difference between the input and output due to distribution. We purchase the grid losses from various suppliers. The consumption is expressed in GWh and converted to CO₂ equivalents using an emission factor that we calculate based on the most recent electricity labels of the specifically purchased energy from the respective suppliers. Through the purchase of Guarantees of Origin (GoOs), we reduce the CO₂-eq emissions of grid losses.

Scope 2 also includes the electricity usage of the buildings. The electricity consumption of the buildings we own, is purchased as green energy. Additionally, we lease several buildings where we do not have authority over energy procurement, which means that energy is not always purchased as green. We also use heat from a local district heating network in two buildings. The electricity consumption that is not purchased as green by us is reduced through GoOs. The electricity usage of the buildings is measured in GWh, and the data is provided by an external party based on metering services. The emission factors are sourced from electricity labels and www.co2emissiefactoren.nl.

Finally, scope 2 includes the electricity usage of leased cars and company cars. Since this electricity is charged at charging points where Enexis has no control over the energy procurement, we assume that the national energy mix is used. The emission factor is sourced from www.co2emissiefactoren.nl.

Scope 3: Other indirect emissions

Scope 3 emissions encompass the release of all greenhouse gases resulting from our activities in the value chain, both upstream and downstream. The GHG Protocol categorizes scope 3 emissions into 15 categories, designed to provide companies with a systematic framework for organizing, understanding, and reporting the diversity of scope 3 activities within a company's value chain. Categories 8 through 14 are not applicable due to the nature and organization of our business activities, as we do not sell goods and services. The emissions in scope 3 are calculated based on spend, unless specific information is available per category, for example from supplier data. We are working on obtaining more specific data with respect to Scope 3.

Category 1, Purchased Goods and Services, includes, among other things, network components from our suppliers, ICT, and other services. The emissions in this category are calculated based on spend and supplier-specific information. For each item in this category, the most appropriate emission factors have been selected, based on DEFRA factors and supplier-specific emissions. The CO₂-eq emissions for transport services are calculated based on spend, multiplied by a DEFRA emission factor with a service-oriented character. A more suitable specific emission factor for this item is not yet available.

Category 2, Capital Goods, consists of emissions related to the procurement of assets such as cables and transformers. Based on Life Cycle Assessments (LCAs) conducted by CE Delft, the emissions per component are converted to CO₂. If LCA data is not available, the calculation is supplemented based on investment amounts. Contracting also falls under this category. The emissions from contracting are calculated based on spend, multiplied by an emission factor based on information from our contractors.

Category 3, Fuel- and Energy-Related Activities, consists of administrative gas leakages ad the chain emissions from fuel consumption of leased cars and company cars, generators, buildings. Administrative gas leakages are calculated by reducing out total gas leakages by technical leakages. The remaining part is our administrative leakage, which is calculated to carbon emissions with a factor of www.co2emissiefactoren.nl. We calculate the fuel consumption based on consumption information multiplied by emission factors from www.co2emissiefactoren.nl. A limited part of this category is calculated based on spend.

Explanation of increases and decreases:

Compared to the year 2023, the following significant developments have occurred in 2024.

Scope 1: Direct emissions

The total CO₂-eq emissions in scope 1 show a very slight decrease (0.4%). When we take a closer look at our individual direct emissions, we observe several developments. Leakages from gas grid has remained almost unchanged compared to 2023 (0.4% decrease). This item represents 92% of the emissions in scope 1.

The emissions resulting from fuel consumption by leased cars and company cars increased by 11% due to an increase in the number of employees and consequently an increase in the vehicle fleet and fuel consumption. This item represents 8% of the emissions in scope 1.

Scope 2: Indirect emissions – electricity and heat

The electricity grid losses show a 15% increase in CO₂-eq emissions (location-based). The increase in CO₂-eq emissions is explained by the fact that the energy mix we purchased has a higher weighted average CO₂ emission factor than in 2023. The electricity grid losses are 100% reduced through GoOs, resulting in 0 tons of CO₂-eq emissions market-based.

The CO₂ emissions from the electricity consumption of our buildings decreased by 37% (location-based). This is explained by a significant 39% reduction in the CO₂ emission factor and an 8% decrease in electricity consumption. Market-based, we also achieve 0 tons of CO₂-eq emissions in 2024 due to reducing through GoOs.

Scope 3: Other indirect emissions

The 61% increase in category 1 (purchased goods and services) is partly explained by a more than 30% increase in CO₂ emission factors and partly by an approximately 30% increase in purchased goods and services. The CO₂ emission factors of components have been adjusted to the most recent insights after recalculation by the manager of the respective factors, CE Delft. The increase in goods and services aligns with the intensification of our activities and the growth of the work package. However, the change in category 2 (capital goods) shows a slight decrease of 6% compared to 2023, which is explained by an exceptionally high procurement of capital goods in 2023 to build up inventory, ensuring material availability does not become a bottleneck in the energy transition. The 58% increase in category 3 (fuel- and energy-related activities) is explained by a 55% rise in the volume of our administrative gas grid losses.

Changes in Estimates and Errors CO₂-eq-footprint 2023

The total market-based emissions for 2023 amounted to 657,965 tons CO₂-eq. In our 2023 Annual Report, 216169 tons CO₂-eq were reported. Through a thorough review of the CO₂-eq-footprint, we have gained better insight into our emissions. We have expanded and detailed our footprint and improved our calculation methodologies by making them more specific. The impact of these changes per scope is visible in the table below.

Below, we explain the restatements with the most significant impact for each scope:

Scope 1 Gas Grid Losses: The emissions in this category have increased due to a revision of the methodology used, which is a combination of changes in estimates and errors. Leakages from the gas grid are no longer solely based on leaks in our main pipelines using the national average for gas distribution. Since mid-2023, we calculate methane emissions based on the OGMP2.0 methodology. This is a more precise and comprehensive method developed in collaboration with the sector and Netbeheer Nederland. In this methodology, we also include the service lines. Consequently, the network over which we calculate losses has expanded. This change in methodology results in an increase in CO₂-eq emissions of 42 kilotons.

Scope 2 Electricity Grid Losses: Due to an error in the calculation of electricity grid losses, resulting from the incompleteness of the volume of grid losses from one of the energy suppliers, the location-based CO₂-eq emissions have increased by 12 kilotons. Market-based, this revision has no impact on the CO₂-eq footprint since the grid losses are 100% reduced with green energy purchases.

Scope 3: The CO₂ emissions resulting from purchased goods and services (category 1) were not included in the 2023 annual report, making this category incomplete. This category includes goods and services that we purchase, such as ICT and network components that suppliers procure. We are retrospectively supplementing this category in the comparative information. The CO₂-eq emissions in this category are based on spend-based emissions and specifically calculated CO₂-eq emissions with information from suppliers. Consequently, scope 3 is expanded by 101 kilotons.

In category 2 concerning capital goods, the emissions are calculated for, among other things, our network components such as cables, gas pipelines, transformers, and gas stations. This category is based on spend-based emissions combined with specifically calculated emissions. The source from which we derive the CO₂ emission factors for our assets, CE Delft, has adjusted the emission factors based on the latest insights, resulting in an increase of CO₂-eq in component emissions. In addition, the expansion of the included network components through extrapolation has led to an increase in emissions in 2023. These revisions lead to an increase of 249 kilotons CO₂-eq in scope 3, which have been adjusted in the comparative information

Category 3, fuel- and energy-related activities, was incomplete and has been added. This category consists of components such as administrative grid losses and WTT emissions from emergency power generators. This results in an increase of 42 kilotons CO₂-eq.

Greenhouse Gas intensity

The table below shows the energy intensity per net output^{(ESRS E1-6 AR 54)}:

The net income from activities in sectors with a significant climate impact is derived from revenue as reported in note 1 to the consolidated financial statements.