Stromspeicher und Power-to-Gas im deutschen Energiesystem

State-Space Load Flow Calculation of an Energy System with Sector-Coupling Technologies

“…Despite the recent developments and insecurities concerning fossil natural gas, producing gaseous fuels via power-to-gas technologies (P2G) retains its potential and its role within the sector-coupling approach, especially due to its versatility. The P2G-concept alongside its specific applications are described by Zapf in [32] and include the following: energy storage, energy transportation, conducting of ancillary services and interconnecting of the electricity sector with the heat and mobility (via hydrogenpowered cars) sectors. Key technologies, such as electrolysis and methanation, use excess power produced by RESs to produce hydrogen and methane, respectively.…”

“…In doing so, the power grid's load is lessened and energy feedback reduced, whilst, simultaneously, sustainable green hydrogen and synthetic natural gas (SNG) are produced. A detailed overview of the fundamentals and respective functionalities of these technologies is also included in [32]. The yield of P2G plants can either be utilized directly or stored in already existing gas networks (as shown by [33]), caverns or tanks, effectively serving as long-term energy storage.…”

“…Inserting the conductor currents I c specified by the load-flow calculation into (36), enables any cable's conductor temperature Θ c to be approximated. Depending on the cable type, the conductor temperature is entered into either (31) or (32), thus specifying a temperature-dependent life expectancy L or aging factor F AA .…”

Klimaschonende Technologien

“…Dann kann die Rückumwandlung in Strom, die Umwandlung in strombasierte Kraftstoffe zur Mobilität ( Power‐to‐Liquid ) oder die Verwendung als Rohstoff für die Chemieindustrie ( Power‐to‐Chemicals ) etc. erfolgen [14, 15]. Auf klimafreundliche Art lässt sich H 2 dabei auf unterschiedliche Weise verwenden.…”