avatar TenneT TSO B.V. Transportation, Communications, Electric, Gas, And Sanitary Services

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    Reporting guidance document Integrated Annual Report 2018 and Green Finance Report 2018 1) Integrated Annual Report 2018 (IAR2018) We have included the definitions for the following KPIs included in IAR 2018, listed in the order of appearance. KPI Unit Description Grid availability onshore Grid availability is the sum of the availability of the national grids. Grid availability (ASAI) is calculated as 1 – (minutes lost/total minutes in one year). In NL we report the SAIDI, based on interrupted customer Grid availability % minutes and ASIDI, based interrupted active power minutes. In GE we report the ASIDI. Number of incidents that resulted in energy not transported in our grid, affecting either consumers or Interruptions # suppliers. Energy not transported MWh Total amount of energy not transported during all incidents in one year, based on transformer capacity. Grid availability offshore Based on the ASAI (Average Service Availability Index), the average availability a customer would experience. Scope: only operational systems compliant to section 2.3.2 “Leitfaden zur Ermittlung einer umlagefähigen Entschädigung bei Störung, Verzögerung oder Wartung der Netzanbindung von Offshore- Anlagen” of October 2013, i.e. OWF/ GCP operational period starts at least 4 months after end of soak test. Calculation of the KPIs are in line with IEEE1366. In other words; we report according to the Grid availability % regulatory scheme. Technical data Total circuit lenght km The length of the overhead lines and underground cabling (a circuit consists of three phases) Overhead lines km Circuit length of our overhead lines (lines that are visible) Underground cabling km Circuit length of our cables which are laid under the ground. A transition line which crosses or spans a border between countries and which connects the national Interconnectors # transmission systems of countries. Number of substations # Number of locations where electricity is transformed to a lower voltage level. HDVC converter locations # Locations where electricity is converted from AC to DC or from DC to AC. Inbound is the amount of electricity in GWh transported from connected grids into our grid via the interconnections. Outbound is the amount of electricity in GWh transported from our grid via the Inbound and outbound GWh interconnections to connected grids. Percentage of hours per year that the electricity prices in two, three or four countries in Central West Price convergence % Europe where equal.


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    Operating generation capacity GW The supply side of the German and Dutch power systems visualized by source of production. Stakeholder dialogues # Public events organised by TenneT where public was invited to learn more about our projects. Customer satisfaction was measured in an independent survey, conducted in the Netherlands and in Germany. The customer satisfaction score is based on the percentage of customers who judge their Customer satisfaction % relationship with TenneT as 'satisfying' or better. LTIF is defined as the number of lost time injuries per million working hours. The LTIF is calculated as the division of the LTI x one million (#LTI x 1,000,000), by the total number of working hours. The LTI is defined as the sum of the number of work related incidents, resulting in fatalities, permanent total disabilities and lost workday cases (LWCs). LWCs are any work-related injury or illness, other than a fatal injury, which results in a person being unfit for work on any day after the day of occurrence of the occupational injury. ‘Any day’ includes rest days, weekend days, leave days, public holidays or days after ceasing employment Number of work related incidents is including contractor personnel at TenneT sites. Working hours are defined as the total number of worked hours. Working hours are based on registered hours and calculated hours and includes TenneT personnel and contractor personnel at TenneT sites. We use measured amounts where possible, and where this is not the case, we make use of estimates. An example of this is for our contractor hours for our onshore operations, where these hours are estimated (Total spend x hour-material ratio) / hourly rate. The hourly rate and hour material ratio is estimated based on historical financial information. In Germany, the hour / material ratio is estimated based on industry standards. There is a generally increasing safety awareness within the company, enforced by the Safety Vision 2018 which entails both to work on strengthening our safety culture and to improve related processes. Our employees and contractors are aware of their obligation towards TenneT to report incidents. We have no LTIF indications that the reported number of lost-time injuries is not accurate or complete. The number of internal and external employees (headcount) Number of internal employees # The number of internal employees for TenneT D include interns. Number of external employees # See above Male employees % Percentage of male employees compared to the total number of employees Female employees % Percentage of female employees compared to the total number of employees Newly hired females at management level The number of externally newly hired females for positions in management positions (team manager and % up) divided by the total number of management positions fulfilled in the reporting year.


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    Ratio highest fulltime salary and median fulltime Includes fixed salary (incl. acquired leave days), variable remuneration and pension benefits, conform salary - Global Reporting Initiative (GRI) standard 102 – 38. More detailed information about the carbon footprint calculation can be found on our website: Carbon footprint http://www.tennet.eu/nl/about-tennet/csr-sustainability.html The summation of all individual contributors to our carbon footprint, without taking greening or Carbon footprint (gross) ton CO2 compensation into account. The summation of all individual contributors to our carbon footprint, with taking greening or compensation Carbon footprint (net) ton CO2 into account. SF6 leakage ton CO2 The carbon footprint related to our SF6 leakage, a strong contributor to greenhouse gas emissions. Lease vehicles ton CO2 The carbon footprint based on the amount of km travelled with lease cars. The carbon footprint based on the gas consumption of our offices. For the gas consumption in our offices Gas consumption ton CO2 in Germany the figures are based on previous year and will be restated next year. The carbon footprint based on the grid losses, where a different conversion factor is used for NL and GE, Grid losses ton CO2 because the grid mix is different. The carbon footprint based on the electricity consumption of our stations for which TenneT has 100% ownership. The electricity use of our stations in Germany is based on the previous year and will be Electricity use stations ton CO2 restated next year. The carbon footprint based on the electricity use of our offices. For the electricity use in our offices in Electricity use offices ton CO2 Germany the figures are based on previous year and will be restated next year. The carbon footprint based on the amount of kilometres travelled by car, train and plain and transport by Travel and transport ton CO2 helicopter and supply vessel.


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    Grid losses is energy that is lost while transporting electricity. Every fifteen minutes, we compare the total amount of kWh transferred into the grid with the total transferred out, which result in the amount of energy lost. These in- and outflows are electronically measured in 15-minute time slots at control centres using external meter readings in the grid. The accumulated data is periodically checked and reported on by an independent metering company using validated software. TenneT verifies this data with its metering systems. The completeness of the metering data is determined by a plausibility check. We report Grid losses Gwh according to the regulatory scheme. Where metering is not possible, we estimate data. ton The carbon footprint divided by the amount electricity transported to our customers. The data is based on Carbon footprint/Transported electricity CO2/GWh the same measurements as described for the grid losses. The amount leaked divided by the amount banked. We use the average amount of banked SF6 in our assets. For offshore we report SF6 leakages at the moment the convertor stations are our property. This is different from the other KPIs in our Green Finance Report, where we report according to regulatory SF6 leakage rate % operation. The amount of SF6 leaked is directly recorded by the amount of refills that occur during the year on specific components. Specific maintenance guidelines are in place on the way that these recordings SF6 leaked kg should be made. These refills are reported by the service providers. The oil leakage of cables is directly recorded by the amount of oil refilling that occurs during the year on specific components. Specific maintenance guidelines are in place that give instruction to the way that Oil leaked litres these recordings should be made. Within our stations and lines we have technical equipment that contain oil or cooling liquids. An accidental Environmental incidents # spill is an environmental incident and are reported in our incident management system, iTask.


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    2) Green Finance Report 2018 TenneT has committed itself to report on an annual basis towards Green Bond investors, until redemption of the allocated bonds. The reporting will comprise the information included in the table below. Here we have included definitions used in providing quantitative and qualitative performance information. With this we want to report accurate and complete performance information and provide a balanced view of how projects are progressing towards our investors to track the performance of the projects in our green bond portfolio. The table below provides a list of the information included and the definitions applied, listed in order of appearance: Reported in Green Finance Report Significant controversies Events like major leaks, heavy accidents, etc. Allocation of proceeds describes how much of the Green Bond funding has been used for financing the Allocation of proceeds EUR assigned projects. Advancement of projects in the building phase year Year in which the platform will start operating Transported electricity, grid losses, interruption time and grid availability Refer to IAR2018 table. Average interruption hours Average time a customer could not transport electricity. # households (actual capacity) # Actual capacity transmission line divided by average electricity consumption of one German household LWC, LTIF Refer to IAR2018 table Actual capacity transmission line multiplied by the carbon emission per kWh for fossil based power CO2 emissions (actual capacity) ton CO2 generation. The avoided CO2 emissions (based on a tank-to-wheel carbon emission factor) per bond issue, based Avoided CO2 emissions per bond issue ton CO2 on the amount spend, amount funded by green bonds and projects funded by a specific bond issue.


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