Hamburg Halts New High-Power Grid Connections for Industry

Municipal grid operator Hamburger Energienetze has stopped granting new high-power electrical connections to major industrial customers and data centers across the city. The utility introduced a distribution procedure restricting connections requiring a capacity of 1.5 megavolt-amperes or higher due to acute network overload and exhausted substation capacity.

The measure affects prospective operations in heavy industry, metal manufacturing, data processing, and automated container terminals in the Port of Hamburg. "Until the overregional expansion by the transmission system operator 50Hertz has taken place at the interfaces, no additional major connections with high power requirements can currently be granted in the Hanseatic city," Hamburger Energienetze stated. The operator expects these bottlenecks to persist into the 2030s.

The Hamburg Chamber of Commerce raised concerns regarding the economic consequences of the freeze. Chief Executive Malte Heyne told the newspaper Die Welt: "The intensified power grid bottlenecks hinder the urgently needed development of Hamburg as a business location." Heyne added that without high-power connections, neither relevant data centers, energy storage facilities, nor industrial production sites can settle in the city.

The supply shortages coincide with municipal climate policy targets. Citizens of Hamburg previously voted in a referendum for the city to achieve climate neutrality by 2040, a goal that relies on widespread electrification across industrial sectors. However, the grid capacity required to support major consumers undergoing electrification is currently missing.

The current capacity deficit follows structural changes in the city's local power generation. The Moorburg coal-fired power plant, which went into service in 2015 as one of the world's most modern facilities of its type, was shut down in 2021 under the SPD-Green state government that has led Hamburg since 2015. Large parts of the plant were subsequently demolished.

Former Federal Economics Minister Robert Habeck previously visited the Moorburg site to give the symbolic start for Hamburg's planned hydrogen infrastructure. Hydrogen production requires high volumes of electricity, which are currently unavailable in the city. Grid restrictions will remain in place until the required regional network connections are finished by 50Hertz.

Written by Sandy van Dongen sandy.vandongen@alpineweekly.com