Cover Stories
Old plant, new mission
Since 1999, the Texas grid operator ERCOT has given plant owners economic incentives to upgrade and extend the life of their generating units. Lower Colorado River Authority has seized the opportunity to modernize the control systems of its 1970s-vintage Sim Gideon natural gas–fired steam plant. Sophisticated control schemes now calculate the toll taken by running units under severe service conditions—including the high ramp rates that a plant must execute to sell ancillary services.
Features
Chauncey Starr: A personal memoir
Chauncey Starr, founder of EPRI—the Electric Power Research Institute—and its first CEO, passed away on April 17, 2007. The previous day, a celebration of his recent 95th birthday had been…
Climate change concerns drive projects to curb CO2
In a carbon-constrained world, CO2 capture and storage (CCS), although considered the most radical of the carbon abatement technologies (CATs), seems to be favored over combustion and steam cycle improvements…
How to make VARs—and a buck
Last month, POWER weighed the pros and cons of the various grid interconnection options available to distributed generation plants. This month we explore the technology choices for generating reactive power, or volt-amperes reactive (VARs), which utilities are willing to pay for as an ancillary service.
Kimberlina: A zero-emissions demonstration plant
FutureGen may be getting the headlines, but it's not the only superclean demonstration plant in town. In fact, you could argue that other technologies are further down the evolutionary timeline. Case in point: Clean Energy Systems' adaptation of rocket engine technology to radically change the way fuel is burned. The result is a true zero-emissions power plant.
Retrospective
June 1886 POWER reported on the art and science of water treatment and its effect on boiler performance in the cover story this month. "Dr. J.G. Rogers, an authority on…
Siemens G-Class technology builds for the future
Gas turbine manufacturers aren't selling as many machines today as they did in the hyperactive 1990s. But they are still continuing to refine G-Class technology. It has been about eight years since the first steam-cooled SGT6-6000G from Siemens Power Generation entered service. Take a quick tour of what must now be considered a mature gas turbine technology.
Smart grid still just a "vision thing"
T&D systems with embedded intelligence have a great future, and they always will. Too many powerful forces—politics, money, and power—remain to be reconciled before consumers and utilities can work together, seamlessly, to reduce electricity demand and eliminate delivery system bottlenecks.
Departments
Commentary
The electricity challenge of the 21st century
When tackling a problem, engineers bring both skepticism and optimism to the task. As the nation's electric power engineers look to fill America's looming capacity gap, they will need to…
New Products
Legal & Regulatory
Focus on O&M
Global Monitor
Global Monitor (June 2007)
Siemens, E.ON to test world's largest GTG / Midwest to add 76-MW peaker in Kansas / Tapping the sun near Phoenix / Georgia Tech developing 3-D PV nanocells / Wind farms with hydrogen backup? / BNSF , union come to terms / IPL to buy 200-MW wind project / India to improve environmental monitoring / POWER digest
Speaking of Power
New math
James Thurber once said that it is "easier to ask some of the questions than to come up with all the answers." As a magazine editor, I get to ask…
Retrospective
June 1886 POWER reported on the art and science of water treatment and its effect on boiler performance in the cover story this month. "Dr. J.G. Rogers, an authority on…
GBR Reports