: Explains the rationale for deregulation and what specifically should be deregulated.
Stoft provides an elegant breakdown of how electricity is traded across different timelines. Modern markets rely on a two-settlement system to manage uncertainty:
System operators cannot easily cut off specific individual customers to manage load without affecting others.
Stoft uses simple examples and over 250 figures to clarify complex phenomena, making the material accessible to engineers, regulators, and lawyers alike.
While official digital copies are available for purchase, the PDF version is sometimes used in academic contexts . power system economics steven stoft pdf
Steven Stoft’s Power System Economics: Designing Markets for Electricity is widely considered the "bible" of modern electricity market design. First published in 2002 by IEEE/Wiley, it remains a critical resource for engineers, economists, and regulators seeking to understand how competitive markets can reliably manage the complexities of a power grid.
Evaluate the trade-offs between "energy-only" markets (like ERCOT in Texas) and markets with mandatory capacity mechanisms (like PJM in the Eastern US). Conclusion
Stoft explains how LMP solves this by calculating a unique price for electricity at every node (bus) on the grid. The LMP consists of three components:
Stoft’s Power System Economics remains a pillar of knowledge in the utility sector. Investing time in reading this comprehensive guide will provide a solid foundation in how electricity markets function, designed to manage both the complexity of the grid and the demands of a competitive economy. : Explains the rationale for deregulation and what
The book's success is inseparable from its author. Steven Stoft holds a BS in engineering mathematics and a PhD in economics from UC Berkeley. This rare combination of hard and social sciences makes him perfectly suited to bridge the engineering/economics divide. He has spent time inside the Federal Energy Regulatory Commission (FERC) and consults for major Independent System Operators (ISOs) like PJM, California's Electricity Oversight Board, the U.S. Department of Energy, and private generators【8†L32-L33, L41-L44】【9†L22-L25, L28-L32】.
: He explains that price spikes are not necessarily "market failures" but are essential for generators to recover fixed costs in a competitive market. Value of Lost Load (VOLL)
The book is built on a key insight: uncoordinated engineering and regulatory policies are the root cause of the boom-bust investment cycles and instability that plague many restructured markets.
Power System Economics is not merely a theoretical exercise; it is a practical guide designed to address the complexities of transitioning from vertically integrated monopolies to competitive power markets. Key Aspects of the Book: Stoft uses simple examples and over 250 figures
It addresses how reliability is maintained in a competitive environment, including the role of the System Operator (SO) and Ancillary Services.
Unlike standard commodities, electricity is economically unique for three reasons: it cannot be economically stored on a large scale, demand is highly inelastic in the short run, and transmission constraints create spatial market segmentation. Stoft emphasizes that these physical characteristics dictate market design. Because supply must exactly match demand at every instant, electricity markets operate under a centralized dispatch model, where an Independent System Operator (ISO) solves a security-constrained economic dispatch (SCED) every five minutes. This real-time balancing is not merely a technical necessity but the economic foundation upon which all transactions rest. Any market that fails to respect Kirchhoff’s laws will produce prices that lead to physical infeasibility and system collapse.
– Explains how short-run reliability policies directly impact long-run investment in generation capacity, focusing on why power systems often under-invest without regulatory intervention.
Stoft starts by addressing a fundamental reality: electricity isn't a typical commodity. He identifies that make power markets unique: