Enable Ancillary Services by RES 1 st Meeting with members of the AB - PDF document

Enable Ancillary Services by RES 1 st Meeting with members of the AB Type of Meeting: Remote via GoToMeeting Date: 14/01/2019, Time 14.10-15.40 CET Meeting participants: 1. Florian Gonzalez (EDSO for Smart Grids) 2. Antonis Marinopoulos (JRC) 3. Charis Demoulias (AUTH) 4. Nefeli Malamaki (AUTH) 5. Florian Niedermeier (UNI Passau) 6. Umer Mushtaq (TUDelft) This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 764090

Disclaimer The information, documentation and figures contained in this document are written by the EASY-RES project consortium under grant agreement 764090 and they reflect only the authors’ view. The Innovation and Networks Executive Agency (INEA) and the European Commission are not responsible for any use that may be made of the information it contains. 2 | 7

Acronyms used: TRL Technology Readiness Level BESS Battery Energy Storage Systems LV Low-voltage MV Medium-voltage DSO Distribution System Operator TSO Transmission System Operator ICA Individual Control Area PCC Point of Common Coupling DRES Distributed Renewable Energy Systems SG Synchronous Generator AS Ancillary Service ICT Information and Communications Technology PVS Photovoltaic System WTG Wind Turbine Generator CHP Combined Heat and Power AB Advisory Board 3 | 7

Minutes of meeting Charis Demoulias (Project Coordinator) presented • The concept of EASY-RES • The main objectives of the project • The work done during the first 10 months of EASY-RES • The work to be done in the next months (until the 2 nd AB meeting) The presentation appears in the Appendix. Questions ( Q ) and Comments were made by Antonios Marinopoulos ( AM ) and Florian Gonzalez ( FG ). Q1 (AM) : How will be the AS financially compensated? Answer : It was made clear that the AS will be quantified, the associated costs (investment and operational) as well as the benefits (mainly deferral of investments) will be evaluated. Viable business models for various stakeholders will be developed. Q2 (AM) : Are AS aggregators foreseen in EASY-RES or just the DSO? Answer : EASY-RES mainly focuses on DSOs, since 1. They are responsible for the operation of the distribution grid 2. The DRES within the distribution grid will affect its operation when providing the foreseen AS. AS aggregators could be involved provided that they cooperate with the DSO and take into account the technical constraints imposed by the DSO. Q3 (AM) : What is the role of the BESS in detail and particularly if they will participate in the harmonic mitigation process? Answer : The role of the BESS at the LV μG and at the MV ICA PCC with the transmission system was clarified. 4 | 7

Q4 (AM) : What types of DRES are considered in the project? Answer : Two types of DRES: ( i ) Those that are converter-interfaced (PV, WTGs, etc) and ( ii ) those with conventional SGs (CHP, Biogas, etc). For the former, new control strategies will be developed so that they operate like SGs and provide, in a controllable way, a number of functionalities. The latter already pose the required functionalities, although these cannot be controlled. The DSO needs to control the former taking into account the latter so as to achieve their objectives. Q5 (AM) : Is ICT required for the proper operation of the foreseen fault protection system? Answer : The EASY-RES approach is to rely on ICT only for extreme protection events, e.g. high-impedance faults. Generally, the ICT system should not be actively involved in protection coordination. Q6 (FG) : Who will be the operator of the BESS? Answer : It is foreseen to be the DSO for reasons explained above. Q7 (FG) : How will EASY-RES validate its research outcomes? At what type of distribution systems? Answer : It was clarified that EASY-RES is low TRL project, therefore, validation only in Lab environment is foreseen. The distribution grids that will be emulated in lab environment are the CIGRE MV and LV benchmarks. Q8 (FG) : Asked for additional promotional material to disseminate within the EDSO members. Answer : It will be soon provided. 5 | 7

Comment (FG) : The interaction between TSO/DSO is significant for the EDSO for Smart Grids and in line with their policy. Q9 (AM) : Is EASY-RES aware of the EU Directive in preparation which does not allow DSOs to operate BESS? Answer : Yes, we are, and we are going to take it into account. End of 1 st AB Meeting 6 | 7

Appendix 7 | 7

1 st meeting with the AB Short presentation of the scope, objectives and of the technical work done during the first 10 months of EASY-RES. Charis Demoulias, 14/01/2019 This project has received funding from the European Union ´ s Horizon 2020 Programme for research and innovation under Grant Agreement no 764090.

/ / Agenda • Sho rt pre se nta tio n o f the sc o pe a nd o b je c tive s o f E ASY-RE S • Sho rt pre se nta tio n o f the te c hnic a l wo rk do ne during the first 10 mo nths o f E ASY-RE S • Pre se nta tio n o f the wo rk during the ne xt mo nths • Disc ussio n with the AB me mb e rs

Short presentation of the scope and objectives of EASY-RES / / ICA Concept HV ICA MV 1 ICA μ G CC MV/LV μ G BESS Ι CA CC Consumer Industrial HV/MV Industrial Prosumer prosumer Microgrid consumer 2 Prosumer Consumer Industrial Prosumer consumer Industrial Industrial ICA BESS RES consumer prosumer Microgrid 3 RES TSO DSO Mixed feeder 1 2 RES-only feeder 3 RES RES RES Microgrid

Short presentation of the scope and objectives of EASY-RES / / AS offered

T IT L E OF PRE SE NT AT ION / / Short presentation of the scope and objectives of EASY-RES Main Objectives 1. Increase the robustness of the power system towards abrupt frequency changes by introducing virtual inertia and damping in DRES (KPI-1): increase the average overall system inertia by at least 1.5% for every 10% increase in DRES penetration 2. Contribute to the stability of the grid by providing frequency-dependent active power KPI-2: for every 3 MW of DRES entering the system, more than 2.5 MW of conventional reserves will be de-committed. The rest 0.5 MW or less will appear as reduction of the power output of conventional base-load units. It is noted that, by achieving this KPI, an improvement of 25% with respect to the current practice followed in the USA will be achieved. The improvement is significant considering the fact that the 2 MW/3 MW rule is followed in USA for just 10% of wind power penetration.

Short presentation of the scope and objectives of EASY-RES / / Main Objectives 3. Increase the renewable energy penetration levels at both LV and MV level, while avoiding investments for grid reinforcement. (KPI-3): the relative increase of DRES penetration with and without the implementation of the EASY-RES approach assuming no grid reinforcement 4. Make the RES more grid-friendly by i ) reducing the short-term electric power fluctuations at both DRES and HV/MV substation level and ii ) introducing active harmonics filtering to each DRES converter. = ≤ KPI  P / min 30% of DRES rated power 4.1 = ≤  KPI P / min 10% of HV/MV transformer rating 4.2 = ≤  KPI P / min 10% of MV/LV transformer rating 4.3 (KPI-4.4): keep the total voltage harmonic distortion as well as the distortion of the individual harmonics within the limits specified by the EN50160 standard even under 100% DRES penetration. In both parts of this objective, EASY-RES will evaluate the achievement of the KPIs also in relation to its implementation and operational cost .

Short presentation of the scope and objectives of EASY-RES / / Main Objectives 5. Preserve the long-term grid security even under very large DRES penetration, by reducing reserve requirements after fault recovery KPI-5: expressing the additional DRES penetration due to the developed functionality, that does not influence the operation of the existing fault-protection means in MV and LV level. This KPI will also be evaluated with respect to the additional relative cost for the implementation of the enhanced FRT capability and controllable, SG-like (i.e., sub-transient, transient and steady-state) contribution to fault clearing. 6. Develop viable business models for all the stakeholders by (i) proposing new metrics for the quantification of the various AS and (ii) evaluating the economic cost and benefit of all the developed AS. KPI-6: the incremental (with respect to the current situation) implementation cost for offering all the aforementioned AS will be less than 10% for DRES with rated power <100kVA and less than 7% for DRES with larger rated power