Storage systems capture excess energy and release it when necessary. This allows them to increase private consumption of solar by households and companies, to cap demanding current peaks and to supply operating reserves to compensate for short-term fluctuations on the grid. WAGO technology allows control of storage systems.
The market for home storage systems is not only being stimulated by homeowners seeking to reduce their use of electricity from the grid by a combination of photovoltaic and battery storage. Suppliers also drive the sales of equipment as they can develop new business models. If batteries are sold together with solar modules and they are interconnected as a swarm, grid load can be reduced. WAGO provides the solution for installation of home storage. WAGO TOPJOB®S Rail-Mount Terminal Blocks can connect the system to a home's power distribution system.
Local grid storage systems regulate the voltage in a low-voltage grid to a preset value. A clear rise in voltage is concerning – especially at lunch time when photovoltaics are running at full speed. Using local network storage that takes in excess energy is an alternative to feeding it into the medium voltage level and to expanding the local network. In the evening or when the sky is overcast, the stored energy can be fed back into the grid. Load peaks in the network can be reduced. In addition, the grid operator can provide system services through the storage system such as operating reserves to generate additional revenue.
Mass storage systems are primarily used for frequency regulation. Transmission grid operators can supply operating reserves. If the mains frequency within Europe's integrated grid system spikes due to excess energy, the storage systems take in energy. If the frequency falls because too little energy is generated, the storage systems release energy.
Industrial storage units cover capacities from a few kilowatt hours to several megawatt hours. Industrial storage units are primarily used to stabilize networks and among other purposes, are used in virtual networks to cap load peaks; i.e., “Peak Shaving,” for load management and for combination with volatile generators, such as wind turbines and controllable consumers. They are also used as sources for electric filling stations, where solar energy can be obtained around the clock.
WAGO technology is used for safe, space-saving storage unit connection. Our telecontrollers are applied as gateways for access to the energy network. Various sensors on the field level can connect to the Internet via these gateways and make their data accessible on the cloud. These are the advantages of WAGO Controllers as a central element of measurement and control technology:
If power is stored not only for short, but over longer periods, power-to-heat and power-to-gas systems are available. They convert excess power to heat and into storable hydrogen and methane. These products can be stored in the existing natural gas network that supplies heating systems, power stations and gas stations. Power-to-heat is ideal for use in applications generating high amounts of heat, e.g., district heating grids. Power-to-gas systems and electrolyzers also work if a dense network of hydrogen filling stations is planned in a region or reliable access to the natural gas network is available. Advantages of WAGO's telecontrol solution:
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