Enel Green Power. Integration of Storage System with RES. Riccardo Amoroso Chief Innovation and Sustainability Officer. Naples, October 16 th 2015

Transcription

1 Enel Green Power Integration of Storage System with RES Naples, October 16 th 2015 Riccardo Amoroso Chief Innovation and Sustainability Officer

2 Worldwide RES trends Additional Capacity by Area Installed Capacity (GW) CAGR: +6.3 % 843 CAGR: +8.1% CAGR: +4.6% CAGR: +7.4% Africa & Middle East Asia and Pacific Latin America North America Europe Massive renewables growth expected worldwide Outstanding opportunities in Latin America, Africa, Middle East and Asia: areas with enormous untapped potential and with still conservative growth estimates Sources: National TSOs, Enerdata, IEA, EER, GWEC, EWEA, IRENA, Global Data, EPIA-SPE ( figures). EGP estimates based on national plans, Government targets, WEO, IEA Medium Term renewable energy report, GWEC, EWEA, SPE-EPIA, BNEF ( figures). 2

3 Impact of distributed generation on the grids Power requested from TSO grid [MW] Mon 30 Aug 2010 Mon 29 Aug 2011 Mon 27 Aug 2012 Mon 26 Aug 2013 Mon 25 Aug % Number of transformers HV/MV with inverted flow of energy between 2010 and July 2014: +257% In Italy electricity flow is no more unidirectional, from big power plants to final clients. 3

4 /03/ :12 22/03/ :00 22/03/ :48 22/03/ :36 22/03/ :24 22/03/ :12 23/03/ : Threat or opportunity PV power plant: Large Variation in few minutes in case of cloudy days Good average forecast Wind power plant: Large amount on power changing within minutes Potential On-Off behavior in case of strong wind More challenging forecast compared to PV Clear sky day Cloudy day Average Output Power [kw] Maximum Output Power [kw] Minimum Output Power [kw] Average Output Power [kw] Maximum Output Power [kw] Minimum Output Power [kw] Time-window for energy release /03/201419:12 17/03/201400:00 17/03/201404:48 17/03/201409:36 17/03/201414:24 17/03/201419:12 18/03/201400:

5 Services from Renewable Energy Sources STATUS WITHOUT CURRENT AVAILABLE SYSTEM RESULTS STATUS WITH CURRENT AVAILABLE SYSTEM RESULTS ANCILLARY SERVICES Frequency primary regulation Frequency secondary regulation Frequency tertiary regulation Reactive power supply / Voltage regulation Black start Islanding ENERGY MANAGEMENT FUNCTIONS Unbalances limitations Energy time shift Energy peak shaving Advanced curtailment management technically possible commercially available technically possible not possible technically possible available technically possible commercially available commercially available Frequency regulation: storage price currently a limitation for secondary and tertiary regulation Voltage regulation: commonly implemented Unbalances: storage supporting forecast, defining the proper sizing in Energy and Power; advanced forecast/nowcast techniques to limit the amount of storage required Time Shift: amount of energy and market knowledge key factors Peak Shaving: deep investigation required in order to design the proper system in terms of power and energy 5

6 Storage Market Evolution in 2015: Key Facts ESS worldwide utility scale projects in 2015: 120 MW+ Commissioned (550 MW+ announced by Q2) Market still largely policy driven (focus in regions with favorable regulatory framework, in particular for demand charge management and frequency regulation) EMEA: Increase in end-users market sales, mainly in Germany (10,000 system sold, fostered by the KFW subsidy program) Asia-Pacific: stable development in Japan and South Korea, Australia and India as emerging market Significant increase in USA (California, New York, New Jersey, Texas, Arizona, Washington and Hawaii) Market jeopardized application-wise (grid support, Renewables integration) and technology-wise (preferred Li-Ion): Outlook: ESS Renewable applications facilitated by cost-reduction trend (Tesla, Samsung, LGchem, Renault-Nissan-Bouygues) Strategic partnerships (Tesla Mega-factory with Panasonic involvement, Samsung battery supply for BMW, LGchem-Audi agreement) Renewable/hybrid system with energy storage as emerging business for grid limited/growth markets Retail Market: Tesla, Samsung, LG, Mercedes, Panasonic show a strong interest in retail market 6

7 Global Market is expected to rapidly grow for utility scale for ESS 7

8 Storage costs are expected to strongly decrease in the future Potential Source: Navigant Research Advanced Batteries for Utility-Scale Energy Storage 8

9 Possible business models A Ancillary services Primary regulation Secondary regulation Terziary regulation Reactive supply and Voltage control B C Price Arbitrage (Energy-shift, peak-shaving) Unbalance Curtailments: due to transmission: constraints and generator flexibility, energy storage helps to increase grid flexibility and reduce curtailment. Day/night Mitigate RES generation unbalance and reduce relevant penalties together with the improvement of weather forecast: Day-ahead market Intra-day market 9

10 Catania 1 BESS Project Overview EGP Catania 1 PV Power Plant Project Description Objectives 1MW-2MWh Catania 1 BESS To design, install and test a first full scale on-grid Battery Energy Storage System (BESS) integrated with the existing EGP Catania 1 PV Power plant To assess the integration between RES and BESS, testing different BESS technologies to define the most appropriate for each application; To verify the BESS benefits in terms of increased RES dispatchability (energy shifting and peak shaving) and provision of services for the grid (voltage and frequency regulations); To acquire first hand O&M experiences with BESS technologies; Catania Rated Power: 10 MW (connection up to 8MW ) Year of COD: 2012 Grid connection: MV J F M A M J J A S O N D Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Timetable Project Preparation, site selection and BESS contract negotiation Site preparation and Installation Start Up Master Scada development and Experimental Activities TODAY Plant Operation & Continuous O&M Improvement 19/11/14 Start site works 15/03/15 Start commissioning tests 1/05/15 Start experimental activities 10

11 Catania 1 BESS Project RES dispatchability UNBALANCING REDUCTION ENERGY SHIFTING Night Production 11

12 Potenza Pietragalla BESS Project Project Description To design, install and test a full scale on-grid BESS integrated with the Potenza Pietragalla WPP (18MW), in order to increase the programmability of RES and experimentally verify the possibility to execute Energy Production programs and ancillary service supply. A lithium-ion 2MW/2MWh BESS will be tested, the first utility scale application in Italy of a BESS integrated with a Wind power plant, connected to the HV line, by using the high efficiency and fast response lithium-ion technology. 2MW/2MWh Potenza Pietragalla BESS EGP Potenza Pietragalla Wind Plant Rated Power: Pietragalla 18 MW Year of COD: 2012 Grid connection: HV J F M A M J J A S O N D January February March April May June July August September October TODAY Project Preparation and BESS contract negotiation 30/03 TPA signature Current Phase Description Commissioning Installation and authorization obtainment for connection to the HV grid 30/03 Site work begin 31/03 contract signature Installation of the BESS completed; Definition, of new grid code for BESS connected to the HV grid; Commissioning activities with BESS connected to the grid almost completed, expected by end of September; interesting results registered during tests (high efficiency Remote control by PT (Global Generation) under development. Commissioning 30/07 Connection to the HV grid Next step Experimental activities Passed Site Acceptance Test COD Operation & test 12

13 Other Storage applications in EGP Status Objective/description Microgrid in Chile Ollagüe In execution The plant supplies the Ollagüe village (in Chile at 3700m above sea level) is a stand alone micro-grid of more than nominal 250kW, consists of solar power plants and wind turbines integrated with a sophisticated electrochemical storage system. The hybrid system thus produced is able to fully meet the electricity needs of the local community (about 300 people) and the public school heat demand, with recourse to the pre-existing diesel generator only in rare cases, and only for the winter months. Microgrid in Kenya Advanced development stage EGP is studying the best business case with the objective of shaping a profitable & replicable business model in order to develop productive, affordable, and reliable micro-grid electricity for rural homes and businesses Microgrid in Peru Advanced development stage To contribute to socio-economic improvement of local population through sustainable economic development of aquaculture and artisanal fisheries in the south coast of Peru realizing a dedicated hybrid system Retail PV+ Storage Under definition To sell photovoltaic systems and batteries to final residential clients who want to become independent from diesel generators 13