Retail4Multi-Use Project Report – Study of Multi-Use Concepts for Charging Stations in Retail Settings
Raoul Hirschberg, Gomboshaw-Johann Boß, Jakob Wegner, Friederike Reisch, Jakob Gemassmer, Jonathan Amme, Moritz Schlösser
The Retail4Multi-Use research project shows that mixed-use concepts at retail and office locations can increase the efficiency of charging infrastructure and reduce the burden on public road space. At the same time, organizational, legal, and time-related hurdles remain in the implementation of charging partnerships.
Without multi-use, Berlin will face a rapidly growing demand for charging: approximately 192,000 charging points by 2035 and about 328,000 by 2045, as well as an annual energy demand of just under 2 TWh and around 2.9 TWh, respectively. Through multi-use, the demand for public charging points decreases by 2.3% (Multi Use) and up to 18.9% (Multi Use Flex). Utilization in retail locations rises from 60 kWh/day to up to 211 kWh/day, and at office locations from 22 kWh/day to 98 kWh/day. The transferability analysis for Stralsund shows a smaller but clear effect (–5.3% demand in public spaces).
The power grid also benefits: grid capacity improves by about 3%, and the need for grid expansion decreases by 4.26%. A freely accessible matching platform and the DIN SPEC 91495 guideline are available for practical implementation. Since charging partnerships remain difficult to implement, targeted funding can help remove barriers and better leverage the potential of multi-use concepts.