Connected end consumer
The networking of controllable loads at the commercial and household level offers many opportunities: numerous new services and business models are emerging around the supply-oriented consumption of intermittent energy feed-in. In this WindNODE workstream, we are laying the technical foundations and organising the necessary data flows that these require. In addition to the economic advantage for each end consumer, this also allows for further exploitation of the efficiency potential for the entire energy system.
The integration of decentralised generating units and shiftable loads requires standardised specifications. To this end, Fraunhofer FOKUS is developing the VHP-ready interface in the scope of this project and suggests corresponding enhancements in the industrial forum. Energy2market studies the current regulatory framework for aggregators and derives possible business models and products. The project also focuses on the integration of consumers in a virtual power plant by means of smart meter gateways, the central communication units of smart metering systems (iMSys). As such, we create interfaces for flexibility in other WindNODE workstreams, particularly for subaggregated pools from e-mobility and other sectors, and support their market-oriented management.
At typical chain store and production sites of the Schwarz Group (Lidl, Kaufland and MEG), load profiles for consumption groups are analysed and approaches are developed for optimised business management, assessment and offsetting. In addition, organisational and technical flexibility potentials are identified and a requirement specification for a SINTEG-ready interface is defined from the company's point of view. Such flexibility potentials are linked to the smart energy system to support the grid and system at exemplary locations and evaluated in trial operation. At selected showcase stores, information about the flexibilisation of retail and its ecological and economic impact is furthermore made tangible for a wide public.
In this project, Stromnetz Berlin, Bosch SI, Fraunhofer IEE and devolo study how data protection, data security and the interoperability of measuring systems can be guaranteed and as such lay the groundwork to leverage flexibility and efficiency potentials at the end consumer side. In order to monitor and predict the data measured by smart metering systems, we are bringing corresponding software to market maturity. Additionally, we evaluate how adequate various communication infrastructures are to support smart metering systems, in particular through bidirectional connections, within different application scenarios. Our analyses are based on the iMSys installation requirements (annual consumption over 6,000 kWh) as well as pilot installations of multiple partners; in total, at least 10,000 iMSys with a protection profile are integrated at Stromnetz Berlin alone.
There are many applications for forecasts in the energy system of the future. Particularly important is the feed-in from renewable energy sources. This is the only way for markets to support balancing processes, for consumers to optimise their schedules and finally, for system operators to maintain system stability. In this project, Solandeo develops and tests short-term generation forecasts in the day-ahead and intraday markets. The key lies in modern mathematical methods and the wide-scale use of smart meters as a new source of real-time data. More specifically, we use the methods for the mass provision of precise solar and wind power forecasts and compare the results with established forecasts based on weather reports.
In this project, Bosch SI and devolo are realising data communication between smart meter gateways and end consumers. The technical infrastructure enables end consumers to flexibilise controllable loads or local energy storage units and make them available to market players for new business processes. We are equipping at least 200 model houses with smart metering systems (iMSys) with smart home components, thereby technically enabling direct interaction with the end consumer. In this manner, we want to study whether end consumers are willing to provide their flexibility and which incentives would motivate them to do so.
In the Berlin distribution grid, Stromnetz Berlin and Bosch SI are testing a central signal for forecast deviations at the transmission system level. Decentralised installations connected to the low voltage grid can react to this signal and as such automatically mitigate short-term deviations from the forecast. In the process, we study both demand side management and demand response at the low voltage level from a technical point of view and economically assess the results. Additionally, we study and compare different ICT technologies to transmit the control information. Our aim is to determine the costs of such a function and provide end consumers with economic products.