Post on 31-Jul-2020
Towards a New Energy ModelChallenges and solutions to enable large RES penetration in
the Canary Islands’ isolated power systems
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018 2
AGENDA
REE at a Glance
The Canary Islands Electrical Systems
A Vision for Tomorrow
The TSO Challenges
What We Are Doing
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
REE at a Glance
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The Spanish TSO
• 4 control centres
• 43.801 km of transmission grid
• 4.360 busbars
• 85.144 MVA transformer capacity
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018 4
95 km
1800 km
REE at a Glance
TSO in the Canary Islands
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
The Canary Islands Electrical Systems
5
TODAY
• 6 isolated electrical systems on 7 islands
• Generation mainly based on fossil fuels
• Low meshed weak infrastructure
• High wind and solar potential
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
Size matters…
0,042 TWh 3,4 TWh ( )x80 248 TWh ( x6.000)
El Hierro
Tenerife
Spanish mainland
ENTSO-E
( x 70 )
3.278 TWh ( x78.000)
( x 1.000 )
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
The Canary Islands electrical system
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TODAY
• La electricidad no es almacenable
• Es necesario un equilibrio instantáneo entre generación y demanda
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91.4%
8.6%
91.9%
8.1%
95.6%
4.4%
89.0%
11.0%
99.3%
0.7%
53.5%
46.5%
Annual demand covered by RES (2017)
TenerifeGran Canaria
Lanzarote -
Fuerteventura
La Palma
La Gomera El Hierro
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
A Vision for Tomorrow
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• Reducing oil dependency
• Reducing CO2 emissions
43
155 168
11.30.4
11.8
92
340370
11.3 0.411.8
227
664714
39.2 4.6 12.1
260
546 549
43.5
11.5 8.00
100
200
300
400
500
600
700
800
Lz-Fv Gran Canaria Tenerife La Palma La Gomera El Hierro
Current and future RES installed capacity vs Peak demand (MW)
2017 2018 (Estim.) 2025 (EECan25) PEAK DEMAND
• Exploiting local primary energy sources
• Minimizing system costs
A BIG move towards renewable energy
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
The TSO Challenge
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Large amount of non-controlable generation in the energy mix
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
What we are doing
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Facing the challenge…
NETWORK DEVELOPMENT
ENERGY STORAGE
INTERCONNECTIONS
R&D
NETWORK DEVELOPMENT
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
What are we doing
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NETWORK DEVELOPMENT
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
What are we doing
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NETWORK DEVELOPMENT
INTERCONNECTIONS
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
La Gomera – Tenerife
(planned)
Gran Canaria – Fuerteventura
(in study)
Lanzarote – Fuerteventura
(planned)
42 km2x 66kV
14 km1x 132 kV
What we are doing
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INTERCONNECTORS
(current 1x66 kV)
ENERGY STORAGE
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
What we are doing
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STORAGE: SORIA-CHIRA REVERSIBLE PUMPED STORAGE
588 65
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
What we are doing
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STORAGE: SORIA-CHIRA REVERSIBLE PUMPED STORAGE
A Project redesigned by the TSO to serve as a tool for:
Main design requisites• Units with smooth start and stop maneuvers• Maximum control over active power both generating/pumping• Fast transition between operating modes• Continuous operating range• Reactive power regulation capabilities (MVar) for voltage control• Black-start capabilities• Other: frequency-power regulation, inertial response, transient
overvoltage, etc.
System stability Security of supply RES Integration
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
What we are doing
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STORAGE: CENTRAL HIDROEÓLICA DE EL HIERRO (CHE)
Technical specs:
o Wind: 11.5 MW
o Pumps: 6.4 MW
o Turbines: 11.4 MW
o Upper reservoir: 380 dam3
o Lower reservoir: 149 dam3
o Roundtrip efficiency: 50%
El Hierro island:
o Peak demand: 7 - 8 MW
o Lowest demand: 3.5 - 4 MW
CHE:
o Owned by Gorona del Viento:
• Cabildo de El Hierro
• ENDESA
• Instituto Tecnológico de Canarias
o Dispatched by the TSO
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018 20
Longest run being 100% renewable: January 25th to February 12th, 2018
(18 consecutive days)
What we are doing
STORAGE: CENTRAL HIDROEÓLICA DE EL HIERRO: 100% RENEWABLE
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
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57
RES integration in El Hierro island
98%
2%
80.6%
19.4%2014
2015
2016
40.6%59.4%
2216 hours 100% renewable
46.5%
53.5%
2017
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
What we are doing
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STORAGE: CENTRAL HIDROEÓLICA DE EL HIERRO
El Hierro system frequency
R&D
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
ALISIOS/OSMOSEHybrid storage projects to provide system services
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STATCOM + ULTRACONDENSADOR
FLYWHEEL
BATERÍA
Multi-megawatt hybrid storage to provide system services in high RES penetration scenarios.• Managing RES variability• P-f Regulation• Inertia emulation• Voltage control• Congestion relief
Hybrid storage to keep security of supply and operating efficiency a low Meshed isolated power grid.• STATCOM: 25 Mvar• SUPERCAPACITOR: 10 MW – 55 MWs• FLYWHEEL: 1.6 MW – 18 MWs• BATTERY: 3 MW - 1 MWh
TENERIFE LANZAROTE - FUERTEVENTURA
3rd International Hybrid Power Systems WorkshopTenerife - May, 8-9 2018
Summary
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The Canary Islands face a big challenge in its way to a cleaner power system
The TSO role is key to achieve the objectives
We are facing the challenge from different angles
NETWORK DEVELOPMENT
ENERGY STORAGE
INTERCONNECTIONS
R&D
We are achieving some promising resultsThere is still a lot of work to do…
Thank You!
www.ree.es
Pablo Santos – Isolated Systems Dept.Red Eléctrica de España
pasantos@ree.es