We raise the question if improvements to current energy-only markets are sufficient to maintain resource adequacy in electricity markets or whether the rapid increase in wind and solar power gives stronger arguments for additional capacity mechanisms. A comparative analysis between Europe and the United States reveals some fundamental differences, but also many similarities in electricity…
Tag: Resource adequacy
Enhancing the Reliability of Bulk Power Systems against the Threat of Extreme Weather: Lessons from the 2021 Texas Electricity Crisis
The February 2021 cold weather outages in Texas remain a subject of important investigation, and lessons learned from the crisis have broader relevance for bulk power systems around the world. This article focuses on the policy responses to what we view as the root causes of the extended blackouts: the insufficient preparation of electric generating…
Assessing the viability of Energy-Only Markets with 100% Renewables
Abstract – Efficient wholesale electricity markets should drive preference revealing bidding where generators offer the majority of their power at their short run marginal cost (SRMC). However, most renewables have very low SRMCs, which in a competitive market is likely to lead to an increasing proportion of low priced periods. Combined with concerns around the…
Capacity Markets – Lessons Learned from the First Decade
Capacity markets were introduced in the U.S. in the late 1990s as a means to ensure “resource adequacy” in liberalized electricity markets where generation must be built by merchant investors rather than regulated entities. This paper provides a general introduction to these markets: why they exist, how they function, how well they have performed in…
Capacity Market Fundamentals
Electricity capacity markets work in tandem with electricity energy markets to ensure that investors build adequate capacity in line with consumer preferences for reliability. The need for a capacity market stems from several market failures. One particularly notorious problem of electricity markets is low demand flexibility. Most customers are unaware of the real time prices…
Electricity Scarcity Pricing Through Operating Reserves
Suppressed prices in real-time markets provide inadequate incentives for both generation investment and active participation by demand bidding. An operating reserve demand curve developed from first principles would improve reliability, support adequate scarcity pricing, and be straightforward to implement within the framework of economic dispatch. This approach would be fully compatible with other market-oriented policies….