Optimizing Demand Response

A comprehensive DR business case quantifies a full range of concurrent benefits.

The benefits of DR remain difficult to quantify. Building a comprehensive business case requires a shift in how policy makers think about DR in order to understand its real possibilities.

Windpower's Warning

ERCOT’s February emergency suggests storage capacity is needed to support renewables.

ERCOT in February averted a blackout that could have become a disastrous defining moment for the windpower industry. This near miss can teach utilities and system operators valuable lessons about integrating variable energy sources into the power grid.

Analyzing Asset Failures

Simulation modeling can improve O&M and capital-planning processes.

Electric utilities are faced with the challenge of managing a range of aging distribution assets that are critical to system reliability. They also are threatened with potentially huge costs as they seek to replace these assets over the coming years to maintain reliability. Making intelligent decisions about asset maintenance and replacement requires accurate information about the failure patterns of these assets over time.

What Happened in ERCOT

Voltage sag shows value of accurate wind forecasting.

Variability is a well-known characteristic of windpower, and system operators know they must plan for changes in wind generation over the course of a day. But when those plans fall short, voltage levels can drop quickly, forcing grid operators to dispatch resources to make up the difference—either by shedding load or bringing reserve generation online.

That’s exactly what happened in ERCOT on an evening in February, when a combination of events left the system operator short on power and long on demand (See Figure 1).

Snake Oil & Smart Meters

Customers deserve the straight truth about electricity costs.

The utility industry faces the difficult task of trying to educate the general public about the realities of delivering electricity service in the 21st century. California’s recent experience trying to put smart thermostats into the state’s building code provides a cautionary example.

Making Peace With Nuclear

When Patrick Moore left Greenpeace—the environmental advocacy group that he helped to create in the early 1970s—some activists labeled him a traitor and a corporate shill. It didn’t stop him, however, from becoming one of the environmental community’s most outspoken advocates for nuclear power development—and one of the harshest critics of anti-nuclear activists. Fortnightly caught up with Moore in February to discuss the state of anti-nuclear advocacy in America.

People

Southern Company named Ronnie Labrato vice president, internal auditing. FirstEnergy’s board of directors elected Gary R. Leidich executive vice president and president of FirstEnergy Generation, and Richard R. Grigg executive vice president and president of FirstEnergy Utilities. Exelon named Ian P. McLean to lead its finance and markets organization. And others...

Letters to the Editor

Taming the Wind is a pleasure to read. The article captures just about perfectly the value of forecasting in cost-effectively and reliably integrating wind power, of balancing in large markets, of geographical spread, and more. It also looks at what the future could hold.

Depreciation Shell Game

Accounting reforms might force regulators to abandon their live-now, pay-later practices.

When an advisory committee of the SEC voted recently to phase out special accounting treatment for various industries, it signaled the end may be near for power plant depreciation deferral mechanisms. Such mechanisms are a mainstay of regulatory accounting in many states, and their discontinuation could send plant owners and regulators back to the drawing board to find a new, GAAP-compliant way to recognize asset depreciation in financial reports.

Flying Through Turbulence

Volatile markets are causing delays, but most deals are moving forward.

Although problems in the power business grabbed the headlines early this decade, the industry now seems fundamentally strong. In contrast to their ratings of banks, rating agencies appear to have recently upgraded more of the electric sector than they have downgraded. It remains a strong investment grade, usually BB or BBB. For an index of 68 electric utilities, the debt-to-equity ratio averaged only 55:45 and return on equity exceeded over 13 percent through January.