The Solution
Technical implementation of battery storage optimization
The optimization of energy purchase costs with coneva Flex happens in two steps. By installing the coneva SmartBox as a local gateway, which measures and transmits the local energy flows, the site is connected to the coneva core technology platform. The data transfers include the current power generation of the PV system, the power consumption of the charging stations, the overall power flow at the metering point, and the status of the battery storage. The coneva SmartBox has several communication interfaces and can use them to send charge and discharge commands to the battery.
In the next step, the flexibility potential of the site is evaluated under the given device and site restrictions, such as size, power and efficiency of the battery storage and maximum grid supply. Consumption and generation forecasts are used as the basis for calculating the charging schedule for the battery. Via our partner Voltego GmbH, which is responsible for the technical operation and power supply of the site, we receive the daily updated electricity prices (individual price per hour) according to the day-ahead prices of EPEXSPOT. Using the forecast data, the technical restrictions and the electricity price information, coneva Flex creates a continuously algorithmically updated schedule for price-optimized electricity consumption. Voltego GmbH reads this consumption schedule via an automated interface and procures the required price-optimized electricity quantities. In the end, coneva Flex executes the optimized consumption schedules fully automatically, so that no additional effort is required on the customer side. The prerequisite for this concept is an electricity supply contract from our partner Voltego, which enables billing based on short-term electricity prices.