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Pilot Project OctoFlexBW: Utilizing Electric Cars for the Grid
The transmission system operator TransnetBW and Octopus Energy have launched a joint pilot project to use battery electric vehicles for grid stability through intelligent charging management. The idea behind it is simple: Octopus Energy indicates which capacity it can move during high grid load. In case of bottlenecks, TransnetBW can retrieve this capacity, after which Octopus shifts the charging processes within its intelligent e-car tariffs to cheaper times. This way, customers benefit financially from cheaper charging electricity, and at the same time, the grid is relieved.
"The special feature of OctoFlexBW, in addition to the large number of participating battery electric vehicles, is the nearly complete end-to-end process from system management to the technical unit. The collected data will provide insights into customer acceptance, the reliability of flexibility provision, product design, and the future potential of electric vehicles for flexibility provision," says Dr. Werner Götz, Chairman of the Management Board of TransnetBW.
1,500 E-Cars Involved
As part of the one-year pilot project, the planned charging processes of up to 1,500 e-cars from Octopus customers in the TransnetBW control area will be managed to support the grid.
Bastian Gierull, CEO of Octopus Energy Germany, highlights the added value of OctoFlexBW for customers: “The potential of e-cars to stabilize the grids is immense. With smart tech and the integration of our two platforms, we are taking a groundbreaking step in congestion management. Our goal is not only to involve end customers but also to reward them for their flexibility – with cheap charging electricity and lower grid costs.”
Need for Grid Congestion Management
The expansion of power generation from renewable energies and other changes as part of the energy transition have led to an increased need for grid congestion management among transmission network operators. For example, if a lot of wind power is generated in northern Germany, it can happen that the transport capacities to the consumption centers in southern Germany are insufficient. In such cases, redispatch measures are taken where the generation in northern Germany is partially curtailed and the generation behind the congestion is ramped up.
Redispatch 3.0
By supplementing the existing regulated redispatch regime with a market component (called Redispatch 3.0), redispatch costs can be reduced in the long term. Additionally, through appropriate compensation, small-scale flexibility integration into the toolbox of network operators is incentivized. This increases the flexibility potential available for network services.
Intelligent Octopus Go
With "Intelligent Octopus Go," Octopus Energy offers its customers an intelligent electricity tariff in combination with a smart meter gateway installed by Octopus Energy to charge electric cars when electricity is cheap and predominantly generated from renewable energy sources. Customers only need to specify once by when and to what charge level their electric car should be charged daily, for example, by 6 a.m. to 90%. Octopus then automates and optimizes the charging control and, in return, guarantees a charging price of a maximum of 20 cents per kWh. Thus, the energy provider manages the complexity in the background while electric car drivers save without much extra effort.
IT Platform "DA/RE"
Data exchange and redispatch – this is what the innovative IT platform "DA/RE" stands for, which supports network operators in their information obligations, data exchange, and coordination of measures within the framework of Redispatch 2.0 processes. As part of OctoFlexBW, Octopus Energy, in the role of an aggregator, will use the data provided by DA/RE to control the connected electric cars. The insights gained will also serve the prospective further development of the DA/RE platform solution to include decentralized generation, storage, and consumption facilities beyond the currently regulated redispatch regime.
Software Platform Kraken
To translate information from DA/RE into intelligent tariffs and thereby manage thousands of charging processes, Octopus uses its software platform Kraken. Here, the data from TransnetBW is combined with other data points, such as the individual details of each household or wholesale electricity prices, to determine the optimal charging time. Together, the electric cars form a virtual power plant that can be regulated for the benefit of the network in Baden-Württemberg, thus contributing to supply security.
After project completion, a variety of follow-up projects are conceivable, for example, an expansion to other control areas or the integration of additional flexibility sources such as heat pumps.
Translated automatically from German.
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