Flexible power plants aligned with renewables for a stable grid 24x7 throughout the year Dr. Andreas Feldmueller, Siemens

Transcription

1 Global Combined Cycle Solutions Flexible power plants aligned with renewables for a stable grid 24x7 throughout the year Dr. Andreas Feldmueller, Siemens siemens.com

2 Agenda Market changes & effect on fossil fired power plants Wind and PV generation in Germany 2014 Influence on power prices (EEX day ahead) Clean spark spread development for a typical F class CCPP in Germany and change of operating profile Why do we need power plants, despite high renewable annual generation? Technical solutions for fast response CCPPs cooperating with renewable generation Flex-Power Services TM Example 1: Fast start up and shut down Example 2: Fast load changes to deliver secondary frequency response Conclusions Page HANNOVER MESSE 2015, Life needs Power

3 Electricity market analysis Wind and PV generation in Germany 2014 MW : : : MW MW MW Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Source: own illustration based on TSO data Installed generation capacity in Germany (2014) approx. 175 GW approx. 100 GW conventional generation Daily need (min/max) 29,5 GW / 70,5 GW Yearly generation (2014) Wind inst./gen. 29GW / 49TWh 31GW / 50TWh 34GW / 50TWh 34GW / 51,4TWh 456 TWh Unrestricted Siemens AG PV 2015 inst./gen. 25GW / 19TWh 32GW / 26TWh 36GW / 26TWh 37GW / 35,2TWh All rights reserved. Page In MW Wind max [ :00] Wind min. 92 [ :00] PV max [ :00] Wind und PV max [ :00] HANNOVER MESSE 2015, Life needs Power [ :00] 134 [ :00] [ :00] [ :00] [ :00] 137 [ :00] [ :00] [ :00] [ :00] 38 [ :00] [ :00] [ :00]

4 Electricity market analysis Influence on Power Prices (EEX day ahead) Energy price [ /MWh] Ø 41,37 /MWh Q Q % Energy price [ /MWh] Ø 37,54 /MWh 81% REE generation share [%] REE generation share [%] Energy price [ /MWh] Ø 32,96 /MWh Q % REE generation share [%] Source: Illustration of 4. Quarter of the shown year on basis of ENTSO-E and EEX Data Page HANNOVER MESSE 2015, Life needs Power

5 Clean spark spread spectrum 2011 in Germany Typical F-class Combined Cycle Power Plant (CCPP) GW [ /MWh] hours (69,1 %) with a positive Spread CSS < -3 /MWh -3 /MWh < CSS < 0 /MWh Page HANNOVER MESSE 2015, Life needs Power CCS > 0 /MWh

6 Clean spark spread spectra in Germany Difficult market conditions for CCPP Year Share of positive hours Positive hours ,9 % h ,1 % h ,3 % h ,7% h ,9 % h Source: own illustration for an F-class combined cycle power plant (CCPP) based on EEX data Page HANNOVER MESSE 2015, Life needs Power

7 A typical F-class CCPP in Germany Less operating days, more part load operation CCPP gross generation in MWh Changing situation MWh Base load (1 start) Increase of starts MWh MWh 0 Page September 1 to 30, 2008 September 1 to 30, 2011 September 1 to 30, 2012 Weekday, Daily starter (21 starts) Intermittent/ Occasionally (8 starts) Source: Site data from a German CCPP HANNOVER MESSE 2015, Life needs Power Less operating hours More part load hours and load transients Change from hot starts to cold starts Shift to unpredictable and new load regimes

8 Increasing wind and PV installations and generation Minimum feed-in remains small 2014 The average minimal wind and PV feed-in: < 250 MW (0,14 %) [in TWh] 2000 Conventional generation [TWh] PV and wind generation [TWh] PV and wind installed capacity [GW] [TWh] [GW] [GW] MW MW MW MW MW ,014 % 0,208 % 0,180 % 0,147 % 0,160 % Source: own illustrations based on TSO data Page HANNOVER MESSE 2015, Life needs Power [16:00-17:00 pm] 14 MW 208 MW 180 MW 147 MW 160 MW [06:00-07:00 am] [18:00-19:00 pm] [04:00-05:00 am] [22:00-23:00 pm]

9 Power plants play a major role for grid stability and security of supply Contribution of thermal power plants Reactive power voltage control Fast load changes Power control Inertia Frequency response Hot start Cold start Stand by capacity Islanding 100ms 1 s 10 s 1 min 15 min 1 h 8 h 1 d 1 w 1 m Grid stability Security of supply Technical or natural grid challenges Fast power plant reaction required Example for a natural grid challenge: Solar eclipse in March 2015, Germany 2 hours and 20mins -10GW expected +18GW Page HANNOVER MESSE 2015, Life needs Power

10 Typical CCPP operating pattern in Germany High and frequent load changes Delivery of maximum tertiary and secondary frequency response (- 171 MW) Changed load schedule for 15 minutes (e. g MW) Delivery of tertiary frequency Response (minute reserve) for 15 minutes (- 50 MW) Source: Dr. Martin Buschmeier, Thomas Kleinwächter, Dr. Andreas Feldmüller, Philipp Köhne "Improving Flexibility of the Combined Cycle Power Plant Hamm Uentrop to Cover the Operational Profiles of the Future POWER-GEN Europe 2014, Cologne, June 4th 2014 Page HANNOVER MESSE 2015, Life needs Power

11 Agenda Market changes & effect on fossil fired power plants Wind and PV generation in Germany 2014 Influence on power prices (EEX day ahead) Clean spark spread development for a typical F class CCPP in Germany and change of operating profile Technical solutions for fast response CCPPs cooperating with renewable generation Flex-Power Services TM Example 1: Fast start up and shut down Example 2: Fast load changes to deliver secondary frequency response Conclusions Page HANNOVER MESSE 2015, Life needs Power

12 Aspects of Flex-Power Services TM Flex-Power Services TM Activity of Siemens Power Generation Services Targets all aspects of plant operation Integrated approach Page HANNOVER MESSE 2015, Life needs Power

13 Example: Fast start-up and fast shut down Flex-Power Services TM F class CCPP in Germany Start Standard Shut down Standard [%] [%] HoF SoF (test) * from GT ignition ** tests for further improved Hot start on the Fly Benefit 40 min Benefit (test **) 4 min 6 min Source: Dr. Andreas Feldmüller, Florian Roehr, Thomas Zimmerer From Base to Cycling Operation - Innovative Operational Concepts for CCPPs POWER-GEN Europe 2015, Amsterdam, June 9-11, 2015 Page HANNOVER MESSE 2015, Life needs Power

14 Example: Improved secondary frequency response Flex-Power Services TM F class CCPP in Germany 4/2013: Implementation of Combined Cycle Load Gradient 8/2013: Implementation of 26 MW/min Load Gradient (GT) Effective power [MW] per unit 135 MW/5 min +75 MW 69 MW/5 min 60 MW/5 min + 9 MW 4/2013 8/2013 Source: Dr. Martin Buschmeier, Thomas Kleinwächter, Dr. Andreas Feldmüller, Philipp Köhne "Improving Flexibility of the Combined Cycle Power Plant Hamm Uentrop to Cover the Operational Profiles of the Future POWER-GEN Europe 2014, Cologne, June 4th 2014 Page HANNOVER MESSE 2015, Life needs Power

15 Agenda Market changes & effect on fossil fired power plants Wind and PV generation in Germany 2014 Influence on power prices (EEX day ahead) Clean spark spread development for a typical F class CCPP in Germany and change of operating profile Technical solutions for fast response CCPPs cooperating with renewable generation Flex-Power Services TM Example 1: Fast start up and shut down Example 2: Fast load changes to deliver secondary frequency response Conclusions Page HANNOVER MESSE 2015, Life needs Power

16 Conclusions Wind and PV generation led to severe changes for fossil fired power plants Reduced spreads, reduced operating hours and increased part load operation limit the plant profit or lead to losses Commercial solutions to keep flexible CCPPs in operation are questionable so far Technical solutions for fast response CCPPs cooperating with renewable generation are available Flex-Power Services TM help to improve operational flexibility of the plants in service Flexible power plants aligned with renewables support a stable grid 24x7 throughout the year Page HANNOVER MESSE 2015, Life needs Power

17 Conclusions Thank you for your attention! Please let me answer your questions Flexible power plants aligned with renewables support a stable grid 24x7 throughout the year Page HANNOVER MESSE 2015, Life needs Power

18 Disclaimer This document contains forward-looking statements and information that is, statements related to future, not past, events. These statements may be identified either orally or in writing by words as expects, anticipates, intends, plans, believes, seeks, estimates, will or words of similar meaning. Such statements are based on our current expectations and certain assumptions, and are, therefore, subject to certain risks and uncertainties. A variety of factors, many of which are beyond Siemens control, affect its operations, performance, business strategy and results and could cause the actual results, performance or achievements of Siemens worldwide to be materially different from any future results, performance or achievements that may be expressed or implied by such forward-looking statements. For us, particular uncertainties arise, among others, from changes in general economic and business conditions, changes in currency exchange rates and interest rates, introduction of competing products or technologies by other companies, lack of acceptance of new products or services by customers targeted by Siemens worldwide, changes in business strategy and various other factors. More detailed information about certain of these factors is contained in Siemens filings with the SEC, which are available on the Siemens website, and on the SEC s website, Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described in the relevant forward-looking statement as anticipated, believed, estimated, expected, intended, planned or projected. Siemens does not intend or assume any obligation to update or revise these forward-looking statements in light of developments which differ from those anticipated. Trademarks mentioned in this document are the property of Siemens AG, it's affiliates or their respective owners. Page HANNOVER MESSE 2015, Life needs Power