Elia Grid International Powering a World in...

1 Elia Grid International

Elia Grid International

Powering a World in Progress

Tarek Fawzy– Power System Operations & Security

CIGRE Congress

Santiago, Chile November 2015

Agenda

• Introduction to Elia Grid International

• Renewable Energy development

• Impact on Power system operation

• Flexibility to face intermittency


Brussels Berlin Dubai

Backed by two major grid operators

50% 50%

EGI embodies the international ambitions of the Elia Group:

• Offer consultancy and engineering services to the international energy

market,

• develop power system projects for third parties and,

• consider investment opportunities in foreign electricity systems


Our solutions and services…

• As an independent partner, we will deliver and implement long-term solutions

for your transmission and distribution needs.

• A strong partner with a proven transmission system operator approach

Asset management

RES integration

Electricity markets and deregulation

Grid development and network studies

Elia Grid International offers advisory services in the

following 5 expertise domains

System operations


A frontrunner going global The many successful projects currently being developed and

implemented by Elia Grid International around the world prove that

we can deliver services at the very highest level.

Successful projects in the Middle East and Africa as an example:

• Grid development and network studies

• Renewables integration with utility

Agenda






Development of Renewable Energy Sources

wind

photovoltaics

biomass

Area proportional to installed capacity

2000 2006 2014

~ 30,000 plants ~ 221,000 plants > 1,600,000 plants

Source: 50Hertz, TenneT, Amprion, TransnetBW, Google Earth

Renewable Energy Sources (RES) installations in Germany



Source: BMWi (08.2015), *Fraunhofer-ISE (10.2015)

A rapid development of RES up to almost 50% of the total installed generation

capacity of 182 GW*



Source: BMWi (08.2015), Fraunhofer-ISE (10.2015)

Due to the intermittent nature of RES the energy share is about 26 % of a total

614 GWh* despite a power share of 50%


0

2000

4000

6000

8000

10000

12000

14000

2005 2010 2013 2015 2020 2025

run of river

biomassa

solar

wind offshore

wind onshore

Belgium is N°3 worldwide in offshore

wind capacity

MW Belgium


Installed capacity evolution In Belgium

Wind and photovoltaics (PV) increased exponentialy over the last years and will

remain the main drivers of future expansion of Renwables

Agenda






4.631 MW, 25.05.2012 Photovoltaics Injection at 50Hertz [MW]

5.346 MW, 05.06.2013

5.540 MW, 20.03.2014

5.995 MW, 05.06.2015 RES impact on Power system operation

Renewables provide a fluctuating feed-in power


High requirements on forecasts, controlability and system operation

Development of PV energy generation characteristics at 50Hertz

pv-feed-in (01/06/2013 – 07/06/2013)

0

1000

2000

3000

4000

5000

0 24 48 72 96 120 144 168F

eed

-in

in

MW

Time in h

Prognose

Data feed-in of pv at 50Hertz (2013)

Maximum feed-in 5.346 MW

Minimal feed-in 0 MW

Biggest increase within ¼ hour +1.594 MW

Biggest decrease within ¼ hour -752 MW

Biggest difference between

Min and Max within one day

5.346 MW

Hochrechnung Forecast Extrapolated feed-in

RES impact on Power system operation

High deviation between minimum and maximum PV power injection


Fluctuating feed-in of wind energy

10.208 MW, 05.10.2012

11.064 MW, 06.12.2013

11.972 MW, 24.12.2014

11.997 MW, 09.01.2015


Wind Injection at 50Hertz [MW]


High requirements on forecasts, controllability and system operations

Feed-in wind energy (01/12/2013 – 07/12/2013) Data feed-in of wind energy at 50Hertz (2013)

Maximum feed-in 11.064 MW

Minimal feed-in 0 MW

Biggest increase within ¼ hour +1.431 MW

Biggest decrease within ¼ hour -901 MW

Biggest difference between

Min and Max within one day

9.675 MW

0

2000

4000

6000

8000

10000

12000

0 24 48 72 96 120 144 168

Feed

-in

in

MW

Time in h

Prognose Hochtrechnung

Operational challenges from Wind

Development of wind energy generation characteristics at 50Hertz 2013


PV forecasts for Germany, April 2013

- Dramatic forecast errors of up to 8800 MW in the day-ahead forecast

- Intraday forecasts clearly better in comparison, closer match with actual feed-in

- Control and reserve power exhausted in Germany and German grid was no

longer independently balanced.

Operational challenge due to forecast inaccuracy

0

5

10

15

20

3. Apr. 4. Apr. 5. Apr. 6. Apr.

Day-ahead outlook

Final intraday outlook

Real-time estimate

Fo

reca

sts

in

GW

Incorrect PV forecasts can endanger system security!


17 Elia Grid International Source: 50Hertz- B. Schucht

An Increase of installed RES capacity by 1 GW would lead to increase the

control power demand by 25 -30 MW

Impact of RES on demand of Control Power



1. Increasing distance between generation

and load

• Operation closer to the limits

2. High RES volatility and poor predictability

• load-generation imbalances

• changed structure of control power

(steep RES power ramps ~16 GW/h

in 2024).

• Reduction of system inertia

3. Reduction of available reactive power

reserves

4. Coordination between generators and grid

operators at different voltage levels


Frequency control

Voltage control

Grid congestion

Coordination

Complex system operations 1 2

3 4

Agenda






Flexibility to face RES intermittency

Renewables as a niche

< 10% RES

Renewables as major

player

10-40% RES

Renewables as dominant

player

> 40% RES

RES have evolved from a niche to a dominant source of energy in the 50Hertz

grid area leading to new challenges and requirements for the grid.

Learn to develop and use

forecasts

Develop processes for

information exchange, billing and

accounting for RES

Grid Reinforcement

Real time data exchange and

controlability of RES

RES contribute to ancillary services

Full steering of conventional

plants and RES

Substantially develop demand-

side response

Real-time cooperation between

TSOs and DSOs



609 TWh

Nuclear

Fossil:

62%

EE: 20%

636 TWh

Fossil:

54%

EE: 46%

2011 2023

Consequences Development of RES Flexibility requirements

Share in German electr.mix

Local distribution Restrictions in the grid

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

11000

40

90

0

40

90

0.4

58

33

40

90

0.9

16

67

40

90

1.3

75

40

90

1.8

33

33

40

90

2.2

91

67

40

90

2.7

5

40

90

3.2

08

33

40

90

3.6

66

67

40

90

4.1

25

40

90

4.5

83

33

40

90

5.0

41

67

40

90

5.5

40

90

5.9

58

33

40

90

6.4

16

67

40

90

6.8

75

40

90

7.3

33

33

40

90

7.7

91

67

40

90

8.2

5

40

90

8.7

08

33

40

90

9.1

66

67

40

90

9.6

25

40

91

0.0

83

33

40

91

0.7

08

33

40

91

1.1

66

67

40

91

1.6

25

40

91

2.0

83

33

40

91

2.5

41

67

40

91

3

40

91

3.4

58

33

40

91

3.9

16

67

40

91

4.3

75

40

91

4.8

33

33

40

91

5.2

91

67

40

91

5.7

5

40

91

6.2

08

33

40

91

6.6

66

67

MW

Windeinspeisung bei 50HzT 23.12.2011 - 08.01.2012

Higher feed-in fluctuation

1 Congestion management

2 Grid development

3 Control power

4 Alternatives for

conventional ancillary

services

5 Fluctuation compensation

Source: 50 Hz, G. Schwartzbach

Rising share of RES increases the flexibility requirements


Increasing competition for control power complicates business case for storage

New players

Electric boiler

Stadtwerke Schwerin

Steelworks

Hamburg

Control Power

through RES

Trimet Project

(Aluminium

Elektrolysis)

Lichtblick pilot

(Zuhause-

kraftwerke)

WEMAG

Battery

Schwerin Small CHP


http://www.bhkw-infothek.de/wp-content/uploads/greenpower.jpg


Overview of intraday system security interventions


Grid-related actions

§ 13(1) EnWG

E.g.

• loop flows

• grid topology

• voltage level

• control power

E.g.

• Local curtailment

• Curtailment in entire control

area

RES curtailment Market-related actions

E.g.

• Redispatch and

countertrading

• Cross-border redispatch

• Load management of large

consumers

• Curtailment of conventional

plants up to technical

minimum

§11 EEG / § 13(2) EnWG


RES

Framework for Successful RES Integration

Security of supply requires coordination and cooperation within the power system

Develop and improve forecasting instruments

A planned RES development facilitates successful integration and reduces costs

Grid reinforcement has to keep pace with RES development

Intermittency

Far from demand Predictability

An Elia Group company

Elia Grid International

Rue Joseph Stevens 7 Joseph Stevensstraat

1000 Brussels – Belgium

Tel. +32 2 204 38 11

Fax +32 2 204 38 10

www.eliagrid-int.com

Eichenstraße 3A

12435 Berlin – Germany

Tel. +49 30 5150 37 11

Fax +49 30 5150 37 10

Tarek Fawzy, PhD

[email protected]

Thank you for your attention!

Elia Grid International Powering a World in...

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