Challenges and Solutions for RES integration within the Spanish Power System. Red Eléctrica’s role Toledo, 18 June 2010 Juan Fran. Alonso Llorente RED ELÉCTRICA DE ESPAÑA Red Eléctrica de España (REE): Mission and principles. ¾ The existence of REE, world pioneer since 1985, as independent and exclusively dedicated to Transmission and System Operation, has proved fundamental for the fast and secure implementation of electricity market and integration of RES Designs, builds and maintains the transmission network. ¾ Since 2007 as exclusive transmission company Operates the system to guarantee the power supply. ¾ Since 2006 also in the extra-peninsular systems SHARE CAPITAL (Closure 2009): Closure 2009 Transmission Grid vs. FREE- Main magnitudes (SPPS) REE FLOAT TOT 80% 400 kV [km ct] 17 977 99,8% Lines SEPI 20 % ≤ 220 kV [km ct] 16 777 98,4% ≤ 220 & 400 kV [nº bays] 3 385 96,8% Subst. SEPI: Spanish Stated Owned Holding Company Transformers 400/X kV [MVA] 66 259 98,8% REE and the integration of RES. Toledo. 18 June 2010 2 1 Contents ¾ Overview of the Spanish Power System ¾ Integration of Renewable Generation (RES) in Spain ¾ past and prospects ¾ sensitive aspects of RES for the power system ¾ In System Planning and Access ¾ Defining new technical requirements ¾ In System Operation: the generation control ¾ Final Remarks and Possible trends RED ELÉCTRICA DE ESPAÑA Yearly Demand supply and coverage 2009 251.509 GWh = 181.614 Net Ordinary Regime + 81.785 Net Special Regime - 3. 770 Hy dro-pump stddtorage demand - 8.120 International exchanges Photovoltaic Minihydro 2.0% 2.0% Rest of special Hydro‐power regime 8.9% Special Regime Generation Nuclear 12.4% Renewable: Non Renewable: Wind 19.1% 13. 7% Minihydro Cogeneration Biomass Coal Coal 12.1% Wind Fuel - Gas oil Combined cyclles Industrial waste Refinery gas 29.0% Urban waste Natural gas Fuel‐Gas Solar 0.7% REE and the integration of RES. Toledo. 18 June 2010 2 RED ELÉCTRICA DE ESPAÑA Installed capacity May 2010 Technology MW % Biomass HdHydro RE CtiCogeneration Waste Treat. Hydro-power 16.657 17,85 0,69% 2,11% 6,46% 1,25% Nuclear 7.455 7,99 Solar Hydro Coal 10.856 11,63 3,80% 17,85% Nuclear Fuel-Gas 1.849 1,98 7,99% Wind Combined cycles 24.294 26,04 20,19% Total (ordinary regime) 61.111 65,49 Coal 11,63% Wind power generation 18.842 20,19 Combined Solar power 3.548 3,8 Cycle Biomass 647 0,69 26,04% Special regime hydro 1.965 2,11 Fuel‐Gas 1,98% Cogeneration 6.027 6,46 Waste treatment 1.170 1,25 Total (special regime) 32.199 34,51 3.268 MW Solar PV Total 93.310 280 MW Solar Thermal REE and the integration of RES. Toledo. 18 June 2010 RED ELÉCTRICA DE ESPAÑA Integration of renewables: prospects and challenges Ambitious national objectives for RES (20% of final energy in 2020) require additional integration within the power system (>40% in the electric energy ) 38.000 MW* 8.367 MW* 5.079 MW* Particular features imply technical and management challenges for the power system and the generation: • Grid development Location far from load and grid • Technical Requirements Vulnerability to incidents(voltage dips) • Control by TSO and more Primary energy: Lack of firmness and control dispatchable resources … without forgetting other organisational aspects REE is working to maximise Secure Integration of RES in Power System * Draft of NAP to by submitted to EC in June10 REE and the integration of RES. Toledo. 18 June 2010 3 RED ELÉCTRICA DE ESPAÑA Challenges for integrating RES generation. REE’s actions RED ELÉCTRICA works for maximizing the secure integration of RES generation in its different functions as System Operator and Transmission company: Energy Prospective: access and grid planning Development and ¾ Generation Adequacy Studies reinforcement of ¾Management of access and planning studies and transmission grid proposals. Capacity Studies ¾ Regulatory proposals (Grid Code) identifying technical and operational requisites MtManagement inreal-time hihorizons ¾ Production forecast: Wind and recently solar ¾ Management of Ancillary Services ¾ Contribution to system dispatchability by the development of a specific control arquitecture for RES generation 7 REE and the integration of RES. Toledo. 18 June 2010 RED ELÉCTRICA DE ESPAÑA Managing Access and Planning the Grid A good programming of new non-transmission facilities (e.g., generators) must take into account decision and commissioning processes in transmission grid: Decision on transmission facilities Grid Planning • REE carries out the planning studies and proposals Access to the grid • National Goverment, with the collaboration of • Regulated process to Regional Administrations, approve the grid assess the aceptability of development plan a new non-transmission • Every 4 years, new horizon (10 y) facility • Every year, review with same horizon • Continuous process Binding (unlike indicative planning for generation) The actual development of the grid (authorization, construction and ; from 1 to more than 10 years) 8 REE and the integration of RES. Toledo. 18 June 2010 4 RED ELÉCTRICA DE ESPAÑA Grid development WIND POWER: High presence in transmission (>60%, contrary to other systems with high penetration) and expected to increase NºNodesRdT Today Future 220 & 400 kV 49 > 100 250 MW 150 MW 150 MW 250 MW 22 MW SOLAR POWER: 100 MW TS.- Majoritary in transmission (≈ 80%) 2.960 MW 4.293 MW 41 MW 49 MW FV.- Minoritary in transmission(≈ 5% of 400 MW existing; few new plans) 3.830 MW 435 MW 1.800 MW Grid Applications: 14.730 MW T: 11.583 MW 9 REE and the integration of RES. Toledo. 18 June 2010 D: 3.147 MW RED ELÉCTRICA DE ESPAÑA Main challenges: Grid Development RES generation does not avoid distribution grid but requires transmission expansion, where the majority of Wind Power (>60%) and Solar Thermal (>80%) is expected. RES is a relevant motivation in the current Plan: new lines and reinforcements for avoiding constrains operation facilities associated to physical connection New subttibstations and bays ALUMINIO Some 100 buses in 220 kV CORNIDO BOIMENTE TABIELLA II TABIELLA II TABIELLA CARRIO A.ZINC LA G R A N D A CARRIO TRASONA ABOÑO TAMON UNINSA TAMON VENTORRILLO P.G.RODRIGUEZ COSTA VERDE PIELAGOS GRELA-2 PUERTO ACERIASA SABON CACICEDO S.CL AUDIO SI ERO TORRVEGA CICERO OH Circuit [km] 12.270EIRIS GRADO LABARCES SABON ELPALO SILVOTA ASTILLER ARGIA S.MARCOS SANZO SNIACE SOLORZANO IRUN ZIERBENA GAT ICA LARACHA SALAS SOTORIBERA LADA VALLEGON SANTURCE PA SAJ ES SAMA PENAGOS ARKALE PSMIGUEL SOLORZANO ORTUE L LA MEIRAMA PEREDA NERVACERO ZAMUDIO BABCOCK NARCEA ELABRA SIDEGASA VALLE DEL NALON PENAGOS ABANTO ACEBIZK VIMIANZO ABANTO PES OZ ALONSOTEGUI AMOREBIETA MESON VENTO VILLALLANA BASAURI SIDENOR HERNANI GUEÑES LAJARA TJ A RA2 AZPEITIA LUGO TJARA1 ABADIANO DUMBRIA TELL EDO AGUAYO ZUMARRAGA AYALA N. DUMBRIA ICH ASO TUBOS ORMAIZTEGUI TAMBRE II VILLABLINO VIRTUS MONDRAGON ARISTRAIN SANCOMPO PDEMOURO TUBACEX MAZARICO REMOLINA TAMBRE NUEVA VILLAMANIN VELILLA ELGEA CAYETANO ANLLARES MATAPORQUERA VITORIA and 50 in 400 kV ONDINAS GAMARRA EZCABARTE BAIXAS MD CA RR IO GUARDO MA TAP OR QUERA MURUARTE PRAGNERES LAROBLA GAROÑA-BARCINA ALI FORJAS MURUARTE PEÑ ADRADA CILLAMAYOR ORCOYEN UG Cables [km] 386 MAZORRAS MERCBENZ MASGALAN VILLAGARCIA CHANTADA S.MARINA TIBO MASGALAN P.POZA JUNDIZ CORD OVILL A TABESCAN COMPOSTILLA PUENTELA BELESAR CTCOMPOSTILLA BRIVIESCA LAS LLANAS AMEIXEIRAS LALOMBA ELCERRO BIESCAS ERISTE MORALETS CAMBADOS MIRANDA VILLAMECA POZASAL ABERIN ESCALDES CANDO PONFERRADA MIRANDA LAFORTUNA TOMEZA MT ESLEON SESUE SALLENTE CORNATEL LAGUARDIA SANGUESA LLAVORSI PIÑOR MONT E A RE ENAS ALCOMOLA VILECHA HERRERA LORA HARO LOURIZAN ALBARE LL S.PEDRO QUERENO TAFALLA ESCALONA S.ESTEBAN VILLATORO SABIÑANIGO VELLE SOBRADELO LOGROÑO OLITE P.SUERT P.E.SIL SANTIAGO SEQUERO PA ZO SBO RBEN SUIDO CASTRELO LLOGAIA P.BIBEY ESTEPAR VILLIMAR LARDERO ARRUBAL ADRALL N. VIGO CARTELLE PRADA TRIVES MEDIANO S.AGUSTIN RAMIS MONTEDERRAMOS VILLALBILLA SENGRACIA QUEL LAPOBLA BALAIDOS ESQUEDAS CERCS RAMIS CONSO SENGRACIA ATIOS FRIEIRA VALLEJERA CASTEJON GRADO S. PALLARS MONTOUTO RIBADELAGO ELEREBRO Uprating lines [km] 8.308SOUTELO APARECIDA BECILLA ALCARAMA JUIA APARECIDA S. PALLARS OLVAN SANABRIA GRIJOTA VIC LASERNA A.GURREA BESCANO LUBIAN TUDELA GURREA ALMUDEVAR MONZON II BESCANO PALENCIA RIOGALLEG O MONZON II VALPARAISO LINDOSO TPALENCIA ONCALA POLA MONZON TARDIENTA CALDERS TR ENEDO TREVAGO LANZASAGUDAS CENTELLES RIUDARENES CINCA PUJALT CORCOS S.CELONI SORIA MAGALLON VILLANUEVA MUDARRAI ENTRERRIOS PENAFÑAF LOR MUDARRA SENTMENAT FRANQUE SES ANOI A LAROCA MONCAYO BAYO L. L E O N ES RUBIO JALON ALBATARREC PALAU ATALAYA MANGRANERS MA NFI GUERES C. BARBA ZARATAN R.CALDE S S.FOST RENEDO PIEROLA RICOBAYO SABADSUR PLAZA S.COLOMA LOSVISOS JUNEDA ABRERA S.CUGAT GRAMANET RUEDA N.S.COLOMA GRAMANET LAOLMA MONTETORRERO CARDIEL RMARTORELL CODONYER CANY ET ELOLIVAR RUBI CAN JARDI CELSA CAN JARDI 2 OSERA BARO VIVER GUIXI ERES CASTRO ESPARTAL TRINI TAT VERNEDA CARTUJOS S.A. BARCA CSBI SBAL S. ANDRE U N. BARRIS BADALONA AVEZARAG SUBI RATS MA R A GA L BSONUEVO DE SVERN LESSEPS DE SVERN SAGRE RA PEÑALBA SARRIÁ FACULTAT TANGCAT A VILLALCA CERVELLO S.FELIU EI XAMP L E SS [nº bays *] 3.476 MA R IA VI LANOVA ZAMORA LAGUNA TORSEGRE ESPLUGA LESCORT URGEL L SAYAGO VIENTOS VENDRELL S.JUST MA T A ELVENT ERRO COLLBLANC CAN RIGAL T VALDONCELLES CORNEL LA SANTS ESPLUGA HOSP I TALET CERDA NUDOVIAR MOT OR S ALMAZAN BEGUES TORDESILLAS CABEZOSR S.BOI ZAL Z. FRANCA PENEDES VILADECANS TRSNTBOI AENAESTE LAS ARROYADAS SECUITA PUIGPELAT VILADECANS SECUITA AENOESTE MEQUINENZA GARRAF GAVA BEMPOSTA