Electric Reliability Council of Texas

Pricing Negawatts

DR design flaws create perverse incentives.

Demand response isn’t energy: It’s a separate product, traded in a separate market. Policy trends, however, are moving toward equal treatment for demand and supply resources in electricity markets. Does treating DR as energy inflate its value and create perverse incentives?

Green Blackouts?

Increasing renewable generation threatens reliability.

An increased reliance on renewable energy could threaten reliability of the nation’s electric transmission grids by reducing the rotational mass and rotational inertia of on-line turbine generators, thus, reducing the capability of generators to respond to drops in voltage frequency. In fact, data collected from 1994 to 2009 for the Eastern Interconnection already reveals a drop in the grid’s capability (as measured in megawatts) to stop a very rapid drop in frequency — such as a drop of a tenth of a cycle per second.

Tres Amigas Tie Up

Synchronizing networks to bring green power to market.

In order to fully integrate wind and other dispersed sources of energy into the system, America’s patchwork transmission networks need to be more closely interconnected and synchronized. An advocate for the Tres Amigas merchant transmission project explains how the proposed facility will integrate the grid.

Green Energy Outlook

Realizing the benefits of a modernized system requires an integrated strategy.

The U.S. power market consistently has displayed cyclical characteristics of boom and bust over the last two decades. Today’s market environment has been directly and significantly impacted by the recent economic recession. Decreases in load growth, declining commodity prices, and lack of accessible financing have caused challenges for the industry.

Can We Afford Climate Regulation?

Lawmakers are rushing a costly decision.

Utilities are struggling to predict the costs of greenhouse gas regulation. In the quest for a greener planet, how much should consumers be asked to pay for environmental benefits that might be difficult to measure?

Green Price Stability

New approaches account for the economic benefits of renewables.

Many green power customers benefit from long-term fixed prices. The most effective programs recognize the value of this price hedge—and fairly exempt customers from fuel cost adders in utility rates.

Dynamic Pricing Solutions

How to account for lack of strong price signals. A hard year puts deregulation to the test.

The greatest benefits of time-of-use pricing come from avoided costs of peaking power and T&D capacity—but only if hourly retail prices accurately model the true costs of delivered energy, including scarcity rents. Restoring the missing price signals will encourage economic investments in AMI, conservation and system capacity.

Revisiting the Keystone State

Rate caps have squelched competition in Pennsylvania.

The prolonged period of capped rates in Pennsylvania—years longer than in any other state—has produced some benefits and some drawbacks. On the plus side, due largely to the rate caps, electricity costs in the Commonwealth have fallen from 15 percent above the national average in 1996 to below the national average in 2007. This has been a significant benefit, but a temporary one that many have taken for granted.

Solve the Seams

The big challenge facing the Northeast energy markets.

The Northeast energy markets are working hard to establish new levels of regional coordination and cooperation. The region’s concerted effort is essential to resolving some of the industry’s toughest issues since the individual markets evolved. These issues include the elimination, reduction, or bridging of seams issues that prevent the economic transfer of capacity and energy between neighboring wholesale electricity markets, or control areas, as a result of incompatible market rules or designs.

The Best Little Nodal Market in Texas

Sweating the details for 2009.

The Electric Reliability Council of Texas (ERCOT) introduced wholesale market competition in 1996, following the organizational change of ERCOT from a pure reliability council to an independent system operator (ISO) the same year. This makes ERCOT one of the earliest adopters of competitive electric markets. Stakeholders and regulators in ERCOT are trying to work out the details of implementing this market.