Name: NorGer: Proposed Norway-Germany HVDC Interconnector
Address: NO

Overview

NorGer was a proposed high-voltage direct current (HVDC) submarine power cable project designed to interconnect the electricity grids of Norway and Germany. The initiative was developed by the joint venture NorGer KS, which served as the primary operator for the infrastructure plan. The project aimed to establish a direct transmission link with an installed capacity of 1400 MW, facilitating the exchange of electrical energy between the two nations. This connection was intended to leverage Norway's hydroelectric resources and Germany's growing demand for power, creating a strategic energy corridor across the North Sea and the German Bight.

The NorGer project was one of two major planned electricity cables between Germany and Norway during its development phase. The other significant proposal was the NordLink project, which was also intended to bridge the Norwegian and German grids. In 2015, Statnett, the Norwegian transmission system operator, made a strategic decision to proceed with the NordLink project. This choice effectively led to the cancellation of the NorGer initiative. As a result, NorGer remains a cancelled transmission line project, with its planned 1400 MW capacity never realized in physical infrastructure.

The cancellation of NorGer highlights the competitive landscape of cross-border energy infrastructure in Northern Europe. The decision by Statnett to prioritize NordLink over NorGer was a pivotal moment for the region's energy connectivity plans. While NorGer was designed to enhance energy security and market integration between Norway and Germany, the selection of an alternative route and technology in the NordLink project meant that NorGer's specific technical specifications and routing plans were shelved. The project's status as cancelled reflects the complex economic and technical evaluations that underpin major energy infrastructure investments in the region.

Route and Technical Specifications

The NorGer transmission project was designed as a direct current (DC) interconnector linking Norway and Germany to facilitate the exchange of electricity between the two nations. The route was planned to extend from Tonstad in Norway to Mooriem in Germany. This path was selected to connect the Norwegian power grid with the German transmission network, enabling the flow of energy across the North Sea. The project was one of two planned electricity cables between Germany and Norway, with the other being NordLink. Statnett decided to proceed with NordLink in 2015, leading to the cancellation of the NorGer project.

Technical Design and Capacity

The technical specifications of the NorGer cable were centered on a capacity of 1400 MW. This capacity was intended to support significant power transfers between the two countries. The design incorporated a bipolar system, which is a common configuration for high-voltage direct current (HVDC) links. A bipolar system typically consists of two conductors, allowing for flexible operation and redundancy. The voltage level and specific technical design choices were tailored to optimize efficiency and reliability for the submarine and overhead line segments.

Parameter	Specification
Entity Type	Transmission Line
Primary Fuel/Source	Mixed
Country	NO
Operational Status	Cancelled
Capacity	1400 MW
Operator	NorGer KS
Route Start	Tonstad, Norway
Route End	Mooriem, Germany
System Type	Bipolar

The decision to cancel NorGer in favor of NordLink was made by Statnett in 2015. This choice reflected strategic considerations regarding the development of the regional electricity infrastructure. The NorGer project remained a significant proposal in the context of North Sea interconnectors, highlighting the competition between different routes and technologies to enhance energy security and market integration. The cancellation marked the end of the NorGer KS operator's efforts to realize this specific transmission line.

Project Ownership and Structure

The NorGer transmission project was structured around a dedicated special purpose vehicle known as NorGer KS. This project company was established to manage the development, financing, and eventual operation of the proposed high-voltage direct current (HVDC) link between Norway and Germany. The ownership structure of NorGer KS reflected a strategic partnership between Norwegian energy producers and grid operators, designed to balance generation capacity with transmission infrastructure control.

The primary shareholder in NorGer KS was Statnett, the national transmission system operator of Norway. Statnett’s involvement was critical for securing grid access and coordinating the interconnection points within the Norwegian power system. Alongside Statnett, several major Norwegian energy companies held significant stakes in the project company. These included Agder Energi, a regional energy group based in Southern Norway, and Lyse Produksjon, the generation arm of the Lyse energy group. Their participation ensured that the cable would have dedicated access to hydroelectric and emerging renewable generation assets in the Norwegian south.

On the German side, the project involved EGL, representing the interests of German energy stakeholders. The inclusion of EGL was essential for aligning the NorGer cable with the German grid expansion plans and securing offtake agreements for the imported Norwegian electricity. The collaborative ownership model was intended to distribute financial risk and operational responsibilities across both national markets.

The decision to proceed with the NorGer project was part of a broader strategy to enhance the interconnection between the Norwegian and German power systems. However, the final choice of the interconnection route and partner was influenced by comparative assessments of multiple proposed projects. In 2015, Statnett made the strategic decision to prioritize the NordLink project over NorGer. This decision led to the formal cancellation of the NorGer initiative, despite the established ownership structure and preliminary planning efforts undertaken by NorGer KS.

The cancellation of NorGer highlights the competitive nature of international transmission infrastructure projects. The ownership stakes held by Statnett, Agder Energi, Lyse Produksjon, and EGL were ultimately redirected or adjusted in light of the NordLink selection. The NorGer KS entity served as the organizational framework for this specific interconnection proposal, reflecting the collaborative approach taken by Norwegian and German energy firms to develop cross-border transmission capacity.

Why it matters

The cancellation of the NorGer transmission line represents a significant shift in the strategic planning of the European power grid, particularly regarding the integration of renewable energy sources across Northern and Central Europe. The project was conceived to address critical grid balancing challenges in Southern Germany, a region that has become a primary hub for wind power generation. By linking this generation capacity with the hydroelectric storage potential of Norway, the link was designed to create a complementary energy system. This integration aimed to stabilize the grid by utilizing Norwegian hydropower as a flexible resource to offset the variability inherent in German wind energy.

Grid Balancing and Renewable Integration

Southern Germany faces distinct challenges in managing its electricity supply due to the high penetration of variable renewable energy, particularly wind. The NorGer cable was intended to provide a direct conduit for exporting surplus wind power during peak generation periods and importing stored hydroelectric energy during lulls. This bidirectional flow would have enhanced the flexibility of the German grid, reducing the need for expensive balancing mechanisms and curtailment of wind turbines. The strategic importance of such a link lies in its ability to harmonize the generation profiles of two neighboring countries, thereby improving overall system efficiency and reliability.

Strategic Decision-Making and Alternatives

The decision to cancel NorGer was made by Statnett, the Norwegian state-owned transmission system operator. In 2015, Statnett chose to proceed with the NordLink project instead, which connects Norway to the Netherlands. This choice reflects a broader evaluation of where interconnector capacity would yield the highest strategic and economic benefits for the Norwegian grid and its European partners. The cancellation of NorGer underscores the complex trade-offs involved in cross-border infrastructure planning, where geopolitical, economic, and technical factors converge. The selection of NordLink over NorGer indicates a prioritization of connections that may offer different balancing advantages or market access opportunities for Norway's hydroelectric resources.

History and Cancellation

NorGer was conceived as a major cross-border electricity interconnection designed to link the power systems of Norway and Germany. This project was one of two proposed high-voltage direct current (HVDC) cables intended to strengthen the energy ties between the two nations. The planned infrastructure aimed to facilitate the exchange of electricity, leveraging Norway’s hydroelectric potential and Germany’s growing demand for variable renewable energy integration. The project was associated with a capacity of 1400 MW and was under the operational purview of NorGer KS. However, the realization of NorGer faced significant strategic competition from another proposed link, NordLink.

Strategic Decision and Cancellation

The fate of the NorGer project was sealed by a critical strategic decision made by Statnett, the Norwegian transmission system operator. In 2015, Statnett evaluated the two competing proposals—NorGer and NordLink—to determine which interconnection would best serve Norway’s grid expansion goals. After this assessment, Statnett decided to proceed with the NordLink project instead. This choice effectively prioritized the NordLink route, which connects Norway to Germany via the North Sea, over the NorGer alternative.

Following Statnett’s 2015 decision to advance NordLink, the NorGer project was officially cancelled. The cancellation marked the end of NorGer’s development phase, leaving it as a planned but unrealized infrastructure asset. The shift in focus to NordLink reflected broader considerations regarding grid stability, geographical routing, and the integration of renewable energy sources within the Nordic and German power markets. Consequently, NorGer remains a notable example of a cancelled transmission line in the European energy infrastructure landscape, illustrating the competitive dynamics between major interconnector projects.

How does an HVDC interconnector work?

High Voltage Direct Current (HVDC) technology is the standard for long-distance submarine power transmission, such as the proposed NorGer interconnector. Unlike traditional Alternating Current (AC) systems, HVDC converts electricity to direct current for transmission and back to alternating current at the receiving end. This conversion is managed by converter stations located at each terminal of the cable link. These stations use power electronics, typically involving line-commutated converters or voltage-source converters, to transform the electrical properties of the grid. The primary advantage of HVDC for submarine cables is the reduction of capacitive charging current. In long AC submarine cables, the cable itself acts as a capacitor, drawing significant reactive power that limits the effective distance before voltage regulation becomes difficult. HVDC minimizes this effect, allowing efficient power transfer over hundreds of kilometers with lower overall losses compared to AC equivalents. Additionally, HVDC enables asynchronous grid connection, allowing two grids with different frequencies or phases to exchange power without requiring strict synchronization. This flexibility is crucial for connecting national grids, such as linking the Norwegian hydro-dominated system with the German mixed-energy grid. The technology supports stable power flow control, where the active power can be precisely adjusted to manage grid stability and optimize energy trading between the two regions. Converter stations are critical infrastructure components, often requiring significant land area for transformer and reactor placement. The choice between overhead lines and submarine cables depends on geographical constraints, with submarine HVDC cables being preferred for crossing bodies of water to minimize visual and environmental impact. The efficiency of HVDC systems increases with distance, making them economically viable for interconnectors exceeding approximately 600 to 800 kilometers, depending on the specific cable technology and voltage level. This technology underpins modern energy infrastructure projects aimed at integrating renewable energy sources across national borders, facilitating the flow of electricity from generation hubs to consumption centers with minimal technical losses.

What distinguishes NorGer from NordLink?

NorGer was one of two planned electricity cables designed to connect Germany and Norway. The other proposed project was NordLink. Statnett decided to proceed with NordLink in 2015. Consequently, NorGer was cancelled.

Project Selection Context

The decision to advance NordLink over NorGer represents a strategic choice by Statnett regarding the interconnection between the two national grids. Both projects shared the fundamental objective of linking the Norwegian and German electricity systems. However, only one could be prioritized for development at that time. The 2015 decision by Statnett marked the turning point for the NorGer initiative.

NorGer was operated by NorGer KS. The project had a planned capacity of 1400 MW. It was classified as a transmission line. The primary fuel or source was listed as mixed. The project was located in Norway. Its operational status is cancelled.

Comparative Overview

While both NorGer and NordLink aimed to bridge the energy gap between Norway and Germany, they differed in their specific routing and strategic implementation. The grounding information confirms that NorGer was a distinct entity from NordLink. The cancellation of NorGer allowed Statnett to focus resources on the NordLink project.

The choice between the two projects involved evaluating different routes and strategic advantages. The provided information highlights that NorGer was a planned cable with a capacity of 1400 MW. The operator was NorGer KS.

The distinction between the two projects lies in their specific planning and execution paths. NorGer remains a cancelled project in the history of Norwegian-German interconnections. NordLink became the chosen alternative. The capacity of NorGer was 1400 MW. The status is cancelled. The fuel type was mixed.

The strategic differences between NorGer and NordLink are not detailed in the provided snippets beyond the fact that they were two separate planned cables. The decision to proceed with NordLink led to the cancellation of NorGer. This decision was made by Statnett in 2015.

NorGer: Proposed Norway-Germany HVDC Interconnector