Hamburg electricity grid

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Stromnetz Hamburg GmbH

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legal form Company with limited liability
founding 2015
Seat Hamburg , Germany
management Management
Karin Pfäffle
Thomas Volk

Chairman of the Supervisory Board:
Jens Kerstan (GREEN)

Number of employees 1,275
sales 794 million euros
Branch Energy industry
Website www.stromnetz-hamburg.de
Status: 2020

The mains Hamburg GmbH , based in Hamburg is the operator and owner of Hamburg's electricity distribution network and associated network equipment and is responsible for network operation, maintenance and expansion of cross-linked, power connector, the handling of network usage as well as for the provision and reading of counters. Stromnetz Hamburg GmbH is a 100% subsidiary of the Free and Hanseatic City of Hamburg. The shares in the company are held by HGV Hamburgische Gesellschaft für Vermögens- und Beteiligungsmanagement mbH (5.1%) and its 100% subsidiary Hamburg Energienetze GmbH (94.9%).

history

Stromnetz Hamburg GmbH as the distribution network operator in the Hamburg network area goes back to Hamburgische Electricitäts-Werke Aktiengesellschaft (HEW). The electrification of Hamburg began in 1879 with the lighting of the quays in the port of Hamburg . In 1882 the town hall market shone for the first time in electric light. In 1884 the first Hamburg electricity meter was set in the Börsenkeller wine restaurant. HEW was born on March 15, 1894, when it was founded with private capital.

While electrical energy was initially an unaffordable luxury for the general public, the modernization of the Poststrasse heating plant laid the foundation for an environmentally friendly heat supply network in the Hanseatic city, which in the 1920s was to become the largest in Europe. In 1894 , the Hamburg town hall was the first HEW customer to receive district heating .

Sandthorquai power station, 1888

After the shares of HEW were admitted to the stock exchange in 1908, the Hamburg Senate gave the Free and Hanseatic City of Hamburg an initial 50% stake in the company. In return for the definition of a fixed supply area, HEW paid a license fee. After the first large-scale power plant was built in Tiefstack in 1917, district heating became more and more popular in Hamburg, and the extremely economical combined heat and power system was generally introduced in 1921.

In 1953, HEW commissioned a wind power plant for the first time , followed by the inauguration of the Geesthacht pumped storage power plant in 1958 . At the beginning of the 1970s, HEW used the tone-frequency ripple control , which forms the basis for automated, remote-controlled switching on and off of street lighting and storage heating.

In 1990 HEW took over entrepreneurial responsibility for WEMAG even before reunification . In 1994, HEW entered the new business field of waste incineration with the construction of the Borsigstrasse waste incineration plant .

In 1999 Vattenfall AB became a new major shareholder in HEW with 25.1% and expanded its shares to 96.8% by 2002. Together with Vattenfall, HEW pursued the goal of creating a new fourth force on the German electricity market. In 2002 HEW, Bewag , VEAG and Laubag merged under the name Vattenfall Europe AG.

As a result of the in §§ 6ff. In accordance with the unbundling concept laid down in the Energy Industry Act (EnWG) , the grid operations were operationally unbundled in 2004. The aim of this legal regulation is the independence of the network operator from the generation and sales activities within a vertically integrated energy supply company. With the establishment of "Vattenfall Europe Distribution Hamburg GmbH" on January 1, 2006, the legal obligation to unbundle under company law was met. On June 7, 2012 the company was renamed “Vattenfall Stromnetz Hamburg GmbH”.

The company complied with the "Joint Interpretative Principles III of the Federal and State Regulatory Authorities on the Requirements for Brand Policy and Communication Behavior of Distribution Network Operators (Section 7a Paragraph 6 EnWG)" published in 2012 by changing from " Vattenfall Stromnetz Hamburg GmbH "renamed" Stromnetz Hamburg GmbH ".

In November 2011, the Free and Hanseatic City of Hamburg signed a cooperation agreement with Vattenfall on an “Energy Concept for Hamburg”, which sets out common goals for Hamburg's energy and climate policy. This agreement dealt with issues relating to the expansion and further development of the power grid and district heating supply as well as measures to increase energy efficiency, the integration of renewable energies and the expansion of electromobility. From June 2012 the Free and Hanseatic City of Hamburg held a 25.1% stake in Stromnetz Hamburg GmbH.

On September 22, 2013, a referendum took place on the remunicipalisation of the energy networks in Hamburg. The decision achieved a slim majority of 50.9% in favor of remunicipalising the energy supply networks in Hamburg.

As a result of the referendum, the Free and Hanseatic City of Hamburg acquired the 74.9% shares held by Vattenfall in Stromnetz Hamburg GmbH through HGV Hamburger Gesellschaft für Vermögens- und Beteiligungsmanagement mbH and its subsidiary Hamburg Energienetze GmbH.

With the completion of the electricity purchase contract on February 7, 2014, Stromnetz Hamburg GmbH is once again 100% in municipal hands. As a municipal company of the Free and Hanseatic City of Hamburg, Stromnetz Hamburg GmbH performs public service tasks and aligns its actions with the principles of a safe, economical, inexpensive, consumer-friendly, efficient and environmentally friendly line-based energy supply (Section 1 of the Energy Industry Act). The planning, construction, acquisition, operation, commercial use, provision and expansion of energy distribution systems take into account sustainability aspects . Stromnetz Hamburg GmbH is committed to climate protection and promotes the integration of renewable energies into the Hamburg electricity grid. It has to observe the ecological, energy and environmental policy goals of the Senate and the other public interests determined by the Senate.

The basis of the activity of Stromnetz Hamburg GmbH is the concession to operate the electricity network in Hamburg, which has been in the hands of HEW and the successor company Stromnetz Hamburg GmbH since January 1, 1995. This is awarded by the city of Hamburg as part of a public tender. The concession agreement concluded with HEW ended on December 31, 2014. Therefore, in December 2012, the city issued a public invitation to tender for interested companies to express their interest in operating the Hamburg distribution network by January 15, 2014. Stromnetz Hamburg GmbH submitted its expression of interest on time and also participated in all further procedural steps of the application process. On June 17, 2014, the press office of the Senate of the Free and Hanseatic City of Hamburg announced that all other applicants had withdrawn from the process, so that the city's own Stromnetz Hamburg GmbH remained the only applicant for the rights of way and the authority responsible for the award Urban development and the environment would now start negotiations on the modalities of the concession agreement with the city-owned company.

On November 12, 2014, the power grid licensing procedure was ended. The Senate approved the conclusion of a concession agreement with Stromnetz Hamburg GmbH. The power distribution remained in the hands of the city. The contract is flanked by a cooperation agreement and has a term of 20 years. The aim of the cooperation agreement is to implement a safe, affordable, consumer-friendly, efficient and environmentally friendly energy supply in Hamburg. This decision was preceded by a competitive procedure under the Energy Industry Act (EnWG), which was carried out by the authority for urban development and the environment. With the cooperation agreement, the important task of services of general interest is taken into account by both sides of the partners. The agreement is the foundation for the energy policy cooperation between the city and Stromnetz Hamburg GmbH. Some key points of the energy policy measures should be mentioned here:

  • Expansion and modernization of the networks
  • Expansion and renewal of the network systems
  • Expansion of wind network nodes in the vicinity of wind turbines
  • Promotion of the integration of feed-in from renewable energies and combined heat and power plants.

With the concession agreement, the city grants Stromnetz Hamburg GmbH the right to use Hamburg's streets and paths or their subsoil for operating the electricity network against payment of a concession fee. When concluding such contracts, the municipalities must pay attention to how the concessionaire operates the electricity network. The network operator undertakes to operate the distribution network in accordance with the provisions of the Energy Industry Act and to maintain, renew and expand it according to the respective needs.

assignment

Stromnetz Hamburg GmbH operates the Hamburg distribution network and is responsible for network operation, maintenance and expansion of the network, network connection, handling of network use and the provision and reading of meters.

The power distribution network in Hamburg includes over 29,000 km of power lines in the high-voltage (110 kV) and medium-voltage (10 kV) network levels as well as the low-voltage network with 400 V. The power lines connect the transmission network of 50Hertz Transmission GmbH , the thermal power stations and feeders in the Hamburg metropolitan area with customers .

In the substations , the electricity is converted from high voltage to medium voltage and reaches the power grid of the lowest voltage level or into the houses via the transformer stations and cable distribution cabinets. Grid connection customers receive a high, medium or low voltage power connection according to their needs and can use it to obtain or feed in the required energy.

In accordance with the Energy Industry Act, Stromnetz Hamburg GmbH is obliged to make its network available to all suppliers and users in a transparent and non-discriminatory manner when performing its duties. This is monitored by the Federal Network Agency (BNetzA) , which is responsible, among other things, for energy regulation.

Stromnetz Hamburg GmbH has been entrusted with the central coordination of the public charging facilities in Hamburg and the implementation of the master plan for expanding the publicly accessible charging infrastructure since the end of 2014.

Network data

All information is approximate and relates to the year 2019.

Circuit length (including house connection lines)
Cable (underground) in km 29,330
Overhead lines in km 1,391
Degree of cabling 95%
Number of electricity meters 1,167,014
Withdrawn annual work in TWh 12.0
Integrated high and medium voltage systems
High-voltage switchgear and substations 55
Customer and network stations 7,724
Geographical data
Population in the network area in millions 1.8
Geographical area of ​​the network area in km 2 1,129
Covered area high and medium voltage in km 2 k. A.
Area covered by low voltage in km 2 k. A.
Number of electricity suppliers operating in Hamburg
Hamburg as a whole 550

Control and monitoring

The Hamburg electricity network is controlled and monitored by the network management of Stromnetz Hamburg GmbH, which is manned around the clock. There the distribution network of Hamburg is monitored from the transfer points of the high voltage transmission network to the transfer point at the customer. The information from all substations in the Hamburg city area and other network systems in the distribution network come together here centrally. Faults are automatically recorded and their elimination is coordinated centrally by the employees. In the event of a large-scale or long-lasting power outage, there is a crisis management concept. Possible crisis scenarios are therefore regularly run through in crisis team exercises.

In Hamburg, 95 percent of the power cables are laid underground. They are thus protected from external influences such as storms and lightning strikes, but in return they can be damaged during civil engineering work. The power grid is operated according to the general standard according to the n-1 principle, which ensures that a reserve is available for all important operating resources in the event of a fault.

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