Wholesale Electricity Market Design to Support Resource Adequacy

Conference · Tue Jul 09 04:00:00 EDT 2024

DOI:https://doi.org/10.2172/2439140· OSTI ID:2439140

Frew, Bethany

Wholesale electricity markets are intended to incentivize system generation investments and operations outcomes that meet evolving system needs. In this work, we evaluate the effectiveness of wholesale market structures, rules and policies in achieving system resource adequacy (RA) and clean energy targets in the presence of self-interested generation investors using the Electricity Markets and Investment Suite Agent-based Simulation (EMIS-AS) model. Results highlight that both capacity markets and operating reserve demand curves (ORDCs) can help achieve a reliable system but with different RA compliance timelines and distribution of generation technologies. Structures with capacity markets tend to favor more capital-intensive peaking technologies while reducing wind and solar build-outs due to suppressed energy and clean energy market prices, particularly in the absence of strong clean energy targets. Conversely, ORDCs improve the commitment of available generation units, but this comes at the expense of higher system costs and renewable generation curtailment. We also find that well-calibrated static capacity demand curves can yield similar reliability and total cost compared to capacity market demand curves informed dynamically by resource adequacy while also yielding stable annual capacity prices. Different approaches to formulating ORDC curves can also yield key trade-offs, namely that a more efficient treatment of storage chronology results in lower ORDC curves and prices, yielding less investment and cost but at the expense of reliability. Finally, the effectiveness of wholesale electricity markets in practically achieving very high clean energy generation targets highly depends on the cost-competitiveness of clean energy technologies that can support critical balancing needs across multiple timescales.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Strategic Analysis Team
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 2439140
• Report Number(s): NREL/PR-6A40-90241; MainId:92019; UUID:a51c3bbb-9ed8-404c-b85a-9cd0fe495e97; MainAdminId:73527
• Country of Publication: United States
• Language: English

Related Subjects

ENERGY PLANNING, POLICY, AND ECONOMY
ORDC
agent based modeling
capacity expansion modeling
capacity market
resource adequacy
wholesale electricity markets