Flexibility in System Operation - funseam.com · Flexibility in System Operation Albino Marques Director de Operación del Sistema Eléctrico. Redes Energéticas Nacionais (REN) Mesa

Flexibility in System OperationAlbino Marques

Director de Operación del Sistema EléctricoRedes Energéticas Nacionais (REN)

Mesa redonda 1:Beneficios esperados de la interoperabilidad en términos de operación del sistema eléctrico

Sesión de TR@NSENER sobre Interoperabilidad de redesAutumn Seminar FUNSEAM

Madrid, 22 de noviembre de 2018

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TOPICS

1. REN and the Portuguese Electricity System

2. The RES uncertainties – some cases

3. Electricity Balancing Guideline – the legal mandate for the European TSOs

4. TSO view on flexibility services

5. Portuguese system trends

Flexibility in System Operation

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REN: the Portuguese Electricity and Natural Gas integrated TSO

• 8.907 km of HV OHL and underground cables (400 kV, 220 kV e 150 kV)

• 67 Substations (37.382 MVA)• 9 interconnections (6x400 kV + 3x220 kV)

• 1.375 km of pipelines (84 bar, 10‘’ - 32’’)• 203 Stations (85 GRMS)• 2 interconnections (1x 28’’ + 1x20’’)• LNG Terminal in Sines• 6 Underground Salt Cavities (4 TWh)

Electricity Natural GasTransmission network Transmission network + Terminal +

Underground storage

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Notas de la presentación

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2008 – 2017 | Installed capacity

MW

TOTAL 19 800

RENEWABLE GENERATION 13 397

Hydro 7 193

Wind 5 090

Biomass 624

Solar 490

NON-RENEWABLE GENERATION 6 403

Coal 1 756

Natural Gas 4 607

Others 40

PEAK LOAD 8 771

Hydro pumps 2 698

Peak load is less than half of the total installed capacity

Very good mix of flexible generation (Hydro & Natural Gas)

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2008- 2017 | Energy mix evolution

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Energy supply in 2017 (40% RES)

Demand+Pump

Demand

Import Balance

Solar

Reservoirs

Run-of-river

Wind

Biomass

Natural Gas

Coal

• Solar 2%• Wind 23%• Hydro 10% (dry year)• Biomass 5%

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2008 - 2017 | Market and interconnection capacity

Average capacityavailable for the day ahead market

Percentage of hours

2008 - 2017 | Interconnections energy flows

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Renewable Capability factor (yearly)

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RES variability in 2017

Hydro – season behavior

Wind Solar

ReservoirsRun-of-RiverAverage Rsrv+RoRAverage RoR

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Wind and Solar installed capacity

New connection requests from Producers (Dec-17)

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Wind extremes in 2017

• 30th April 2017 - 109% of the load was delivered by wind (instantaneous)

Historic Load PeakContribution from Wind Wind Peak

Maximum Energy DailyMaximum % Inst. PowerMaximum % Energy Daily

0

2000

4000

6000

8000

10000

0 6 12 18 24

MW 24 Janeiro

9192 MW

2968 MW

0 6 12 18 24

12 Novembro

3702 MW

0 6 12 18 24

13 Novembro

70 % / 81 GWh

93 %

LOAD LOADLOAD

WIND

WIND

WIND

24 January 12 November 13 November

Historic Load PeakContribution from Wind Wind Peak

Maximum Energy DailyMaximum % Inst. PowerMaximum % Energy Daily

0

2000

4000

6000

8000

10000

0 6 12 18 24

MW 24 Janeiro

9192 MW

2968 MW

0 6 12 18 24

12 Novembro

3702 MW

0 6 12 18 24

13 Novembro

70 % / 81 GWh

93 %

LOAD LOADLOAD

WIND

WIND

WIND

24 January 12 November 13 November

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Wind extremes in 2017 (30th April)

109 % = Wind / Load72 % = Wind / (Load + Pumping + Exports + Losses)72 % = Wind / (Generation + Imports)80 % = Wind / Generation

ImportsNatural gasHydro reservoirsHydro run-of-riverCoalOther non-dispat.WindLoad + PumpingLoad

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Extremes in 2016 (21st November)

From Maximum to minimum (99 MW) in 22 hours


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RES has supplied all national consumption for 4 consecutive days

Between 12th and 16th of Feb 2016, wind and hydro produced 134% of the load


Minimum demand load

Maximum demand load

Average wind share

Average hydro reservoir share

Average hydro run-of-river shareOther RES share

4.078 MW

7.737 MW

60%

36%

33%

5%

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Objectives of the EBGL

Objectives defined in Article 3 of the Electricity Balancing Guideline are:

a) fostering effective competition, non-discrimination and transparency in balancingmarkets;

b) enhancing efficiency of balancing as well as efficiency of European and nationalbalancing markets;

c) integrating balancing markets and promoting the possibilities for exchanges ofbalancing services while contributing to operational security;

d) contributing to the efficient long-term operation and development of the electricitytransmission system and electricity sector in the Union while facilitating the efficient andconsistent functioning of day-ahead, intraday and balancing markets;

e) ensuring that the procurement of balancing services is fair, objective, transparentand market-based, avoids undue barriers to entry for new entrants, fosters the liquidityof balancing markets while preventing undue distortions within the internal market inelectricity;

f) facilitating the participation of demand response including aggregation facilitiesand energy storage while ensuring they compete with other balancing services at alevel playing field and, where necessary, act independently when serving a singledemand facility;

g) facilitating the participation of renewable energy sources and support theachievement of the European Union target for the penetration of renewable generation.

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The TSO view on flexibility services – why we need flexibility

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The TSO view on flexibility services

• Flexibility purpose is balancing/frequency related services and/or localcongestion management services.

• The first ones are, according to European approved codes, exclusively operatedby the TSOs. The second ones are operated by the respective grid operator (DSOor TSO). DSOs and TSOs should be enablers for the participation of the flexibilitysources connected to their network in the different markets.

• According to EBGL – Electricity Balancing Guideline it is an “all EuropeanTSOs” obligation to build European platforms to enable cross border Europeanmarkets to exchange various types of balancing products.

• The service suppliers can be flexible generators or flexible consumers (directly orthrough aggregators - to have enough dimension)

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• TSOs (and DSOs) should strive to facilitate and enable the flexibility providers connected to their networks to be active in any market, including balancing, congestion management, day-ahead and intraday or any additional market that might developed in the future.

• There shouldn’t be any entry barriers for distributed resources derived from the lack of harmonisation and interoperability to participate into markets. Thus, a common data platform containing all bids and offers for all available markets and run by an entity independent from market interests should be the preferred scheme.

• Customers should have the right to participate in all markets. Customers should be able to choose how to perform this participation, including directly without interaction with the operator of the network to which they are connected.

The TSO view on flexibility services

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How to enable the flexibility in system operation with more renewable and dispersed generation, storage and EVs?

1. The TSOs defend a “one system approach”. Fragmenting the market should bea no-go. A flexibility service provider should be able to offer its services fordifferent market purposes, and its flexibility should be used where valued at most.

2. If markets serving a specific need (and therefore possibly at a local scale) aredeveloped, they should be well-coordinated with the integrated electricity marketat national and European level (e.g. through coordinated Merit Order Lists (MOL)or common platforms)

3. TSOs must have observability of grid users larger than a given size, due to theirdirect influence in balancing and system security, and this should be defined innational regulation.

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How to enable the flexibility in system operation with more renewable and dispersed generation, storage and EVs?

4. The TSO/DSO data sharing is key to allow visibility of Distributed Energy Resources (DER):

• Structural data • Scheduled data• Real Time data• Meter data

5. In Portugal we have a good tradition in TSO/DSO technical cooperation. This has be improved because uncertainties in system operation must be intelligently and efficiently managed to save money to the consumers.

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Portuguese system trends

What we already have:

• RES can continuously supply the national load for few days,

• Wind can continuously supply the national load for few hours,

• No CCGT and Coal continuously in the grid for few days,

• Pump Hydro Storage is 2.7 GW, enabling very high flexibility,

• There was no relevant curtailment of RES until now.

What is new:

• Solar PV in the wholesale market is the new trend,

• Solar PV must participate in the balancing market,

• All RES must participate in the Balancing market (after the end of FIT?!)

• Aggregators in the balancing market.

• 2019 – Regulator initiative – launch a pilot project to enable consumption

participation in the balancing market.

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Thank you for your attentionQuestions?

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Flexibility in System Operation - funseam.com · Flexibility in System Operation Albino Marques Director de Operación del Sistema Eléctrico. Redes Energéticas Nacionais (REN) Mesa