Höchstspannungsnetze

Höchstspannungsnetze are electricity transmission networks that operate at very high voltage levels, typically above 220 kilovolts (kV). Their primary purpose is to transport large amounts of electrical energy efficiently over long distances from power generation sites to load centers. The high voltage minimizes energy losses during transmission, as power loss is proportional to the square of the current. By increasing the voltage, the current can be reduced for the same amount of power, thereby reducing resistive losses in the transmission lines.

These networks are crucial components of modern power grids. They form the backbone of national and international electricity supply systems, connecting power plants, substations, and major industrial consumers. Höchstspannungsnetze are characterized by their robust infrastructure, including tall pylons supporting large conductors and sophisticated protection and control systems to ensure reliability and stability. The voltage levels commonly found in these networks include 220 kV, 380 kV, 400 kV, 765 kV, and even higher in some regions.

The development and maintenance of höchstspannungsnetze are complex undertakings, requiring significant investment and advanced engineering. They play a vital role in integrating renewable energy sources, which are often located far from demand centers, and in facilitating international electricity trade. Managing the flow of power and ensuring the security of these high-voltage systems are ongoing challenges for grid operators.