Fortnightly Magazine - July 2012

The Methane Myth

Incompetence and overreach at the EPA.

The EPA’s new method for measuring the amount of methane that escapes from natural gas wells is based on flawed data. Oklahoma’s attorney general says this misguided policy decision treads on state regulatory authority and stifles resource development.

Learning to Love Congestion

Competitive market problems and their implications for customers’ net costs.

In competitive power markets based on locational marginal pricing (LMP), the facts sometimes conflict with popular belief. Most notably: 1. When there’s congestion, the books don’t balance, and ratepayers always pay more than the generators receive. The difference is sometimes called “congestion cost.” 2. Congestion in a competitive market doesn’t necessarily increase ratepayers’ costs; and 3. Reductions in LMP are incomplete and sometimes misleading measures of economic benefits of transmission upgrades. These three facts and their implications should be considered in transmission planning, market design, tariffs, and system operations.

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