Electric Power Optimization Centre http://www.epoc.org.nz Our research uses mathematical modelling, optimization and statistical tools to comprehend modern electricity markets such as the NZEM, and to analyze and develop methods for efficient generation schemes and demand- side participation.
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Electric Power Optimization Centre
http://www.epoc.org.nz
Our research uses mathematical modelling, optimization and statistical tools to comprehend modern electricity markets such as the NZEM, and to analyze and develop methods for efficient generation schemes and demand-side participation.
How can potentially volatile renewable energy sources be optimally integrated into the electricity market?
For example:– Wind power– Solar power– Distributed generation– Wave energy– Tidal power
Trading periods when production line shuts should be taken.
Interruptible Load Price
Energy Price
Source: Graeme Everett, Norske Skog
Demand-side Management
How do we design switching networks that reconfigure automatically in case of failure? Below is an illustration of a least cost capacity expansion to give a self-healing distribution network.
Optimal self-healing expansion: more expensive, but robust to line failures.Least-cost expansion is unreliable.
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demand point
existing linenew demand point
candidate lineselected linezone substationconnection to sourcecandidate switching station
Smart Grid
How efficiently does the market perform, compared to a centrally planned system?
How do electricity market reforms affect market efficiency?
Every half-hour electricity generators submit offer stacks, specifying the price and amount of power they are willing to sell into the wholesale market.
In markets with imperfect competition, it may be possible to exert market power by increasing the offer prices above true marginal cost.
Diagnosing Market Power Issues
Locational electricity prices at all nodes are recomputed every 5 minutes. This creates a risk for firms that buy and sell power at different locations. How can firms manage this risk?
Benmore
Otahuhu
Time of Day 6am-9am3am-6am
Source: comitfree
Prices over a day at Otahuhu and Benmore.
Hedging Locational Pricing
Directors:Prof. Andy PhipottDr. Golbon Zakeri
Members:Dr. Geoff PritchardDr. Tony DownwardAssoc. Prof. Rosalind Archer