© verbund ag, · photovoltaik geothermie** eegstrg maximum load: ca. 82.000 mw minimum load: ca....


Hydropower as Flexibility Solution for Energy Storage

Hydropower - supporting a power system in transition

Otto Pirker, Vienna; November 2015

© VERBUND AG, www.verbund.com 01.07.2015 VERBUND AG/HK/Pirker

Agenda

TT.MM.JJJJ

• Position of Hydropower in the

European generation mix

• Different types of HP plants – various

ways of providing system services

• Operation of storage and

pump storage HPP

• Flexibility and storage – the big

advantage of the Hydro Power System

Seite 3

© VERBUND AG, www.verbund.com © VERBUND AG, www.verbund.com Seite 4


Position of Hydropower in the (European)

generation mix

&

Future developments

© VERBUND AG, www.verbund.com Seite 5

Electricity Generation Mix world-wide (2012)

Renewable electricity generation world-wide 2012 (Data Base - U.S. Information Administration)

Worldwide, hydropower is the most important renewable energy sources in

electricity generation by far! The share of hydropower in electricity generation is 17%!

77% of electricity from renewable energy we generated in hydro power plants!

© VERBUND AG, www.verbund.com 01.07.2015 VERBUND AG/HK/Pirker TT.MM.JJJJ Seite 6

EU28 Gross Elsctricity Generation 2012 (3.295 TWh).

Data Base - DG Energy Statistical pocketbook 2014


EU28 - Gross Electricity Generation (1990,2000,2010 and 2012).

Data Base - DG Energy, Statistical pocketbook 2014.


EU28 Gross Renewable Electricity Generation 2012 (799 TWh)Data

Base - DG Energy pocketbook 2014

In spite of the intensive development of wind and PV, hydropower is still the

most important renewable energy source in Europe! The share of hydropower in electricity production in the European Union is 13% (18% in total

Europe)

About 46 % of electricity from renewable sources in EU 28 was produced in hydro power plants


Hydropower is the heart of the renewable family

© VERBUND AG, www.verbund.com

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MW

thermische Abfallbehandlung Wasserkraft >5 MW* Wasserkraft <5MW*

Biomasse Wind-Onshore Wind-Offshore

Photovoltaik Geothermie**

EEG StrG

Maximum load: ca. 82.000 MW

Minimum load: ca. 35.000 MW

2015

Sourcee: BDEW, BMU-Leitstudie 2011

Mathias Timm Seite 10 25.06.2015

Installed capacity renewable energies in Germany


Conventional energy

sources: ca. 80%

RES: ca. 20%

Year 2012

Source: BDEW, AG Energiebilanzen,Stand: 08/2012; Ziele der BR

Conventional energy

sources: ca. 20%

RES: ca. 80%

Year 2050 (Target)

High Share of renewable energies in gross domestic electricity consumption in

Germany:

Challenge - integration of wind and PV, while maintaining security of supply


Renewables - Target 2050 "exchange of roles"


Wind & PV supply and installed capacity in Germany 2012/13

http://www.vernunftkraft.de/de/wp-content/uploads/2013/04/4.png


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€/M

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Wind Photovoltaik Stromverbrauch Spotpreis [€/MWh]

Saturday,

15.06.2013

Sunday,

16.06.2013

Monday,

17.06.2013

Tuesday,

18.06.2013

Wednesday,

19.06.2013

-100 €/MWh

Quellen: Übertragungsnetzbetreiber, EEX, BDEW (eigene Berechnungen)

Residual load: 15.938 MW

65 % load coverage

by wind and PV

8 hours later, Residual load: 45.837 MW

3 % load coverage

by wind and PV


Interaction of renewable and "backup powerplants"


Security of supply Parallel to wind and. PV

necessary:

1. „Back up Power Plants“

to meet the full demand

2. Highly flexible and reliable

power generation

3. Flexible Energy Storage

14

extreme fluctuations

(daily, seasonal)

Load differences

within

1,5 h up to 10.000 MW

resp.

6 h about 26.000 MW

2012:

63 GW PV + Wind EE* = Wind + PV

Für 2020 gilt in erster Näherung: alle Angaben (2012) mal Faktor 2

Wind & PV is not always available

RES generation in Germany 2012:

installed capacity and generation


source:

dena 2012,

Studie Integration EE

max

median

min

Development of the residual load in Europe

© VERBUND AG, www.verbund.com © VERBUND AG, www.verbund.com Seite 16


Different types of HP plants – various

ways of providing system services

„Hydropower as part of the solution”


Hydropower is…..

more than 5,000 years old

since approx. 150 years an essential part of the electricity supply

system (first HP station in 1880 in Northumberland) - proven

technology!

was continuously adapted to the particular circumstances

- site-specific and innovative!

the most important renewable energy sources in electricity

generation (17% worldwide; 18% in Europe)

European "leadership" in terms of technology


Run power plants

Baseload generation, primary control capable

Pondage Power Plants Baseload and peakload generation

partial short-term storage,

primary and secondary control

Storage power plants

Peak load generation, perfect balancing and

reserve power plants depending on the

storage volume.

secondary and tertiary control

Pumped storage power plants

As storage power plants in addition,

Enectricity from the system can be stored

Positive and negative balancing power

Different types of hydropower plants offer all grid sevices


Typical daily diagram of Kops II (Austria) Regelpumpenbetrieb Kopswerk II

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29.10.2010 12:00 29.10.2010 14:00 29.10.2010 16:00 29.10.2010 18:00 29.10.2010 20:00 29.10.2010 22:00 30.10.2010 00:00

Zeit

MW

Ist-Leistung KOW II M2

80 M

W/m

in

QSource: VIW


Kops II, “Hydraulic shortcut”


Examplel Kops II / Flexibility

5 years Experience

• About 8000 hours / year per machine

• 10 – 20 Changes between P / T per day

• The existing flexibility covers exactly the

needs of the market

© VERBUND AG, www.verbund.com 22

Storage Power Plants

(existing)

D - A - CH: 12,1 GW D: 0,3 GW

A: 3,7 GW

CH: 8,1 GW

Quelle: Dr. Gruber, Verbund

Planind stage: 9.550 MW

Existing and under

construction: 14.400 MW

Prof. Dr.-Ing. Frank Pöhler - AGAW-Symposium - Innsbruck 25.06.2015

Quelle: Prof. Aufleger + eigene Bearbeitung

D – A – Ch PSHPP Potential?


• - the most important renewable energy sources in electricity generation

worldwide and in Europe

• - generating currently about 600 TWh (380 TWh in EU28) CO2 free

renewable electricity in Europe

• - provides all ancillary services (balancing and reserve capacity,

reactive power supply)

• - provides “Black start capability”

• - and about 220 TWh maximum storage can currently be provided by

storage and pumped storage power stations in Europe.

Today – hydropower is


• - is avoiding about 350 million tonnes of CO2 emissions annually in

Europe

• - has the lowest "carbon footprint" in all generating technologies.

• - is currently the most cost-efficient form of electricity storage and cost-

efficient way of providing flexibility.

• - contributes to GDP with about € 25 billion (EU28); € 38bn (Europe)

• - s added value stays mainly in Europe

• - has a broad rang of multipurpose functions

• …….

Hydropower -

© VERBUND AG, www.verbund.com 25

Development on the electricity market prices

(01.01.2007 - 31.10.2014)

„Distortion in the electricity market“ !

3,1 ct/kWh

No investment incentives for necessary investments in

required capacities and flexible storage

© VERBUND AG, www.verbund.com Seite 26 01.07.2015 VERBUND AG/HK/Pirker

1. Reform of the CO2 market

2. Integration of renewable energies into the market

3. Reduction of market barriers (Allowing price spikes, Pumped storage

must be considered as a generation asset and must therefore not be

burdened by double grid fees.)

4. Integration of the turn-off in demand in the current pricing (DSM)

5. Transboundary opening of the balancing markets

6. Consideration of flexibility and storage in the "new market design“

7. Developing the transmission system

8. Level playing field for all technologies

Requirements for a (new) Market Design

© verbund ag, · photovoltaik geothermie** eegstrg maximum load: ca. 82.000 mw minimum load: ca....

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