Our key tasks

We are primarily tasked with providing power transmission services, system services and facilitating the energy market. Our core tasks follow from our appointment as grid operator under the Dutch 'Elektriciteitswet' (E-wet) and the German 'Energiewirtschaftsgesetz' (EnWG).

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TenneT presents Hub and Spoke concept for large scale wind energy on the North Sea.

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Our grid

TenneT manages the high-voltage grid in the Netherlands and large parts of Germany. TenneT transmits electricity at 110,000 volts (110 kV) and higher. With around 23,500 kilometres of high-voltage lines, we cross borders and connect countries.

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Offshore 2030

By 2030, the originally planned capacity of 15 gigawatts of offshore wind energy will increase to 20 GW.

To Offshore 2030
Electricity market

The energy sector is developing rapidly. The process of European market integration began some years ago. Its purpose is to create a single European market that enables market parties to trade gas and electricity across national borders easily and efficiently.

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Transparency data

We provide transparency data on our operations on our Dutch and German transparency page and on ENTSO-E. 

To transparency pages

Our vision is to be one of the most transparent Transmission System Operators (TSO) in Europe and thereby creating value for society. In this Energy Insights section we present selected energy related topics and show data, information and valuable insights. 



Facts & figures related to TenneT facilitating the market can be found here.

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TenneT is a leading European electricity transmission system operator (TSO), with activities in the Netherlands and in Germany. We strive to ensure a reliable and uninterrupted supply of electricity in our high-voltage grid for some 42 million people.

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We are TenneT

Meet us

Calculation forms

EEG flat-rate procedure wind and biogas EEG 2012 / 2013 / 2014 / 2015

Calculation form biogas (130 KB, xls, 11/05/16)

(flat rate, correction factor of ¼ hour before feed-in management; German)

Calculation form biogas Download Download
Calculation form wind (147 KB, xls, 11/05/16)

(flat rate, correction factor of ¼ hour before feed-in management; German)

Calculation form wind Download Download

EEG flatrate procedure 2009

Guidelines Calculation file (1 MB, pdf, 11/05/16)


Guidelines Calculation file Download Download
Guidelines for reporting errors (413 KB, pdf, 11/05/16)


Guidelines for reporting errors Download Download
Calculation file 1% rule (189 KB, xls, 23/09/16)

Calculation file 1% rule Download Download