Stochastic risk-sensitive market integration for renewable energy: Application to ocean wave power plants
Journal Article
·
· Applied Energy
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Lehigh Univ., Bethlehem, PA (United States)
With the expected increase of intermittent renewable energy resources on the electric power grid, short-term reserve markets can prove to be a critical reliability asset. This paper introduces and tests a potential market structure that includes a short-term reserve market for renewable resources where the realized energy is drawn within the bounds of the hourly capacity offered. The study presents a risk-aware stochastic model that determines, based on the day-ahead offer derived using a classic newsvendor formula, the best intraday offers for a renewable energy power plant. The stochastic approach takes into account the uncertainties of energy production and market prices. The proposed risk-sensitive model aims to maximize the renewable power plant's revenues and minimize potential risks of loss in a multi-product multi-timescale market setup. To demonstrate the effectiveness of the proposed formulation, we study the case of a hypothetical 750-kW wave power plant coupled with energy storage. The study shows that the risk of profit loss is not uniformly distributed across the risk-aversion factor space. We also find that the introduction of the short-term reserve market results in a wider range of conditional value at risk while inducing 5% profit increase and a lower profit reduction across the risk range. In addition, the study reveals that the short-term reserve market is profitable for both the system operator and the wave energy power plant considered.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- National Science Foundation (NSF)
- Grant/Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1471479
- Alternate ID(s):
- OSTI ID: 1703570
- Report Number(s):
- NREL/JA--5D00-71360
- Journal Information:
- Applied Energy, Journal Name: Applied Energy Journal Issue: C Vol. 229; ISSN 0306-2619
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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