transmission needs in a fully renewable pan-european electricity system irenec, june 2012
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Transmission Needs in a Fully Renewable Pan-European Electricity System IRENEC, June 2012. Renewable Energy Research Group Aarhus University. Group Leader Martin Greiner Professor, System Engineering [email protected]. Main Research Topics Large-scale renewable energy systems - PowerPoint PPT PresentationTRANSCRIPT
Rolando Andres RodriguezEnergy Systems EngineeringDepartment of EngineeringAarhus University
Transmission Needs in a Fully Renewable Pan-European Electricity SystemIRENEC, June 2012
Rolando A. Rodriguez,[email protected]
Renewable Energy Research GroupAarhus University
2012.06.28 2
Main Research Topics
-Large-scale renewable energy systems-Physics of complex networks-Wind farm turbulence modeling
Group Leader
Martin GreinerProfessor, System [email protected]
Fundamental Research Approach
-Independent of policies or technological advances-Strongly dependent on reliable and thorough weather data-Based on simple mathematical models
Rolando A. Rodriguez,[email protected]
Model Data
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Possible Power Production
Solar EnergyWind Energy
Weather Data
50 km x 50 km1 hour resolution
8 year period
Load Data
1 hour resolution8 year period
Allows modelling of hourly
consumption/production for 27 European
countries
Rolando A. Rodriguez,[email protected]
Mismatch Calculation
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Power generation is normalized according to energy output and not installed capacity.Power generation is normalized according to energy output and not installed capacity.
Hourly mismatch of generation and consumption:
W(t): Normalized hourly wind power generation.S(t): Normalized hourly solar power generation.L(t): Normalized hourly electricity demand (load).
Hourly mismatch of generation and consumption:
W(t): Normalized hourly wind power generation.S(t): Normalized hourly solar power generation.L(t): Normalized hourly electricity demand (load).
Rolando A. Rodriguez,[email protected]
Residual Load
Instantaneous mismatch:
Residual load needs to be covered by power balancing from conventional sources!
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Rolando A. Rodriguez,[email protected]
Optimal Mix of Wind and Solar
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Wind power Solar PV power Load
Wind + Solar PVLoad
Optimising for
Storage Energy ≈ 60% wind power + 40% solar powerBalancing Energy ≈ 70% wind power + 30% solar powerBalancing Power ≈ >70% wind power + <30% solar power
Rolando A. Rodriguez,[email protected]
2012.06.28 8
A Fully Renewable Europe
Analysed Scenario
•27 European Countries
•Annual Renewable Production = Annual Consumption
•Existing links as of winter 2011-2012
•Optimal mix installed in all countries ≈ 70% Wind, 30% Solar
What are the benefits of transmission for a fully renewable Europe? What is a sufficiently large transmission system?
Rolando A. Rodriguez,[email protected]
Unconstrained Power Transmission
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Quantifying the benefit of transmission is done through the total need for balancing
Bn =(Δn-(KF)n)-
Which is a result of • Net Exports• Mismatch
Rolando A. Rodriguez,[email protected]
Unconstrained Power Transmission
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We identify sufficiently large quantiles on transmission limitations.
Rolando A. Rodriguez,[email protected]
Constrained Power Transmission
• Copper Plate transmission roughly 10x actual installed capacity.
• 99% Quantiles roughly 5x actual installed capacity.
• Several ways to interpolate – Linear Increase of current limits– Linear Reduction of 99% Quantile limits– Implementation of intermediate Quantiles
• These constraints implemented as limits on flow capacity
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Rolando A. Rodriguez,[email protected]
Constrained Problem Statement
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Constraint implementation effects the following changes in the problem statement.
Rolando A. Rodriguez,[email protected]
Constrained Power Transmission
Availability of export to neighbours
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Rolando A. Rodriguez,[email protected]
Renewable Energy Research GroupAarhus University
2012.06.28 15
Thank you for your attention!
Martin Greiner(professor)
Morten G. Rasmussen (postdoc)
Gorm B. Andresen (postdoc)
Dominik Heide(former ph.d/postdoc)
Rolando A. Rodriguez(ph.d. student)
Sarah Becker(ph.d. student)