Analysis of operating reserve demand curves in power system operations in the presence of variable generation
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Univ. of Denver, Denver, CO (United States)
- Electric Power Research Institute, Knoxville, TN (United States)
- General Electric Energy Consulting, Schenectady, NY (United States)
- Kansas State Univ., Manhattan, KS (United States)
The electric power industry landscape is continually evolving. As emerging technologies such as wind and solar generating systems become more cost effective, traditional power system operating strategies will need to be re-evaluated. The presence of wind and solar generation (commonly referred to as variable generation or VG) can increase variability and uncertainty in the net-load profile. One mechanism to mitigate this issue is to schedule and dispatch additional operating reserves. These operating reserves aim to ensure that there is enough capacity online in the system to account for the increased variability and uncertainty occurring at finer temporal resolutions. A new operating reserve strategy, referred to as flexibility reserve, has been introduced in some regions. A similar implementation is explored in this study, and its implications on power system operations are analyzed. Results show that flexibility reserve products can improve economic metrics, particularly in significantly reducing the number of scarcity pricing events, with minimal impacts on reliability metrics and production costs. Furthermore, the production costs increased due to increased VG curtailment - i.e. including the flexible ramping product in the commitment of excess thermal capacity that needed to remain online at the expense of VG output.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- Grant/Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1372040
- Report Number(s):
- NREL/JA-5D00-67452
- Journal Information:
- IET Renewable Power Generation, Vol. 11, Issue 7; ISSN 1752-1416
- Publisher:
- Institution of Engineering and Technology (IET)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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