Objectives and research topics

Project main objectives

  • Assess the values of EV services in DK, UK and Japan, by using real EV driving data.
  • Disseminate V2G applications and best practices in Europe and in Japan.
  • Establish tight collaboration with the research area of a large car manufacturer.
  • Vehicle manufacturer (such as Nissan) will use the project outcome to improve future vehicle designs in order to make them more “grid proactive”.
  • Build up on the experience on Bornholm test case and contribute to enrich it.
  • Derive guidelines for coordinating system wide services provided locally: Distribution System Operator (DSO) vs Transmission System Operator (TSO).
  • Test whether EVs can help supporting Bornholm power system (balancing mainly).

Research topics and questions

The following research questions support the techno-economical investigations

1. DSO vs TSO coordination and grid modeling

  • Can a large set of EVs contribute to balance an islanded power system without inducing local grid issues?
  • What specific mechanisms will allow EVs to include local constrains while providing system (island)-wide services: that means DSO/TSO coordination?
  • What are the specific synergies with wind integration and can EVs increase the amount of renewables supported in an “islanded” scenario?
  • Will Bornholm power system safely and securely supply a 100% EV penetration scenario and which guidelines could be provided to the local DSO (Bornholms Energi & Forsyning) in order to achieve step by step a 100% scenario?

2. EV aggregating functions

  • Contract phase: for how long, how large, and how fast the aggregated power of EV fleet should be ready on a daily, weekly or monthly basis when contracting with the system operator?
  • Real time operation phase: how to ensure the control signal given by the system operator will be strictly followed?
  • How much do a specific driving pattern and the energy capacity of the EV affect the control method when providing the ancillary services?

3. Services economic and technical analysis

  • How much the degradation of the battery, while providing system services, affects the service profitability?
  • What is the trade-off between using the fleet for ancillary service (AS) profit optimization and using the fleet for renewable/operational support?
  • What is the saturation level of the ancillary service market in term of EV population?