experience you can trust. 1 solutions for large-scale wind power integration in the european system...
TRANSCRIPT
Experience you can trust. 1
Solutions for large-scale wind power integration in the European system
EWEC2009Energy and power management
Frits Verheij March 18, 2009
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Outline
The impact of wind power
Challenges for large-scale integration
Findings of TradeWind workshop 12-02-2009
Energy storage
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The impact of wind power Less GHG emissions Less dependent on fossil fuels, and thus Less dependent on energy policy of other
countries More jobs Lower electricity prices
Larger variations in power supply Less predictable power output Large investments needed Cross-border cooperation required Change of ‘power’
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As wind power capacity is growing fast …
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Wind power industryWind power industry
Public &
Interest
groups
Grid
operators
Utilities
& IPPs
Gov’ment
&
Regulators
… the impact of wind power creates pressure on the industry
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Challenges for large-scale integration
Different support mechanisms are applied in different electricity markets
The present grid is not designed to facilitate large volumes of wind generated electricity …
… and building wind farms at remote areas are increasing the challenges for grid operators
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Some findings from TradeWind workshop (1/3) Flexibility of the electricity supply system is required
to facilitate large volumes of wind power (2020+)
Single electricity market enables international trading of wind power (and of other power sources)
Reinforcement of the grid is needed already, apart from the growth of wind power
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Some findings from TradeWind workshop (2/3) Think BIG: the future grid should be designed for the
next 50 to 60 years
Combine long-term thinking with short-term actions, i.e. we should start designing the future grid now as building new overhead lines is a 6-10 years process
Wind farms should be designed as modern power plants which supports the grid
Functions could be frequency control, voltage fault ride through, reactive power, et cetera
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Some findings from TradeWind workshop (3/3) We will have too little time to wait for new European
rules so we better start with concrete projects and develop best practices, e.g. Krieger’s Flak
A common vision and close co-operation between politicians, governments, regulators, grid operators, utilities, wind farm operators, interest groups and other stakeholders is required to make wind power also a success on the longer term
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Additional thoughts
Add quickly dispatchable power plants to electricity system
Develop demand side management
Add more electricity storage facilities to the system
Advanced wind power curtailment?
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Combination of electricity storage and wind energy seems logical … Electricity storage is well-established practice
– In 1999 the EU had 32 GW capacity of pumped storage out of a total of 188 GW of hydropower and representing 5.5% of total electrical capacity in the EU
– Wide variety of (mainly small-scale) storage applications
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… besides storage adds value to the energy sector
Decouples supply from demand
Increases technical reliability of power supply
Reduces loads on conventional power plants due to less frequent adjustments less maintenance
Absorbs unpredicted variations in wind power
Balances wind during windless or stormy periods
Provides more flexibility in utilization of conventional power plants
Stabilizes costs of electricity (peak shaving) and decreases imbalance costs
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Main applications of large-scale electricity storage
Energy
management
Energy
management
Download capacity base load units during off-peak hours + deliver additional power during peak loads
Spinning reserve (hours) Other ancillary services
like frequency control and voltage support (minutes)
Download capacity wind power plants during hours of strong winds
Balancing unexpected variations in wind energy (actual versus forecast)
Pre
sen
tF
utu
re
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The Energy Island
Innovative plan for large-scale energy storage
Characteristics: Artificial island in North Sea, 15 km from the coast, size of 10x6 km2,
water depth of sub surface inner lake is -32 to -40 m Storage capacity of 20 GWh, able to provide about 1.500 MW Enabler for other functionalities, e.g. 300-500 MW wind turbines, marina
for maintenance offshore wind farms, other harbour facilities, substation, aquatic biomass, tourism, nature, agriculture, fish farming, …
Experience you can trust. 15
Thank you for your attention
Your contact person:
Frits Verheij KEMAArnhem | The NetherlandsT/M +31 (0) 26 356 [email protected] www.kema.com