A 660-MW underground and underwater transmission project linking Ridgefield, N.J., and Manhattan in New York City began operations on Monday.

By Robynn Andracsek, P.E., Burns & McDonnell Most power plant emission control efforts have focused on mercury, NOx and SO2 emissions, but in recent years PM2.5 has risen in importance for Clean Air Act compliance. PM2.5 is a complex and not well understood pollutant, even though it was first regulated via a National Ambient Air […]

Though current low natural gas prices are thought to deter renewable development, the long-term outlook suggests gas and renewables can work together.

Commissioner Philip Moeller of the Federal Energy Regulatory Commission talks with Editor Thomas Overton about the progress of gas-electric harmonization, potential risks to reliability in the dash to gas, and the future of gas-fired power.

In a report released on May 13, the U.S. Energy Information Administration (EIA) presents data on energy-related carbon dioxide (CO2) emissions for each state by year, fuel, sector, and other breakouts for the years 2000 through 2010.

AES Corp.’s subsidiary Dayton Power & Light (DP&L) plans to retire six coal-fired units representing about 390 MW at its 414-MW Hutchings coal-, gas-, and oil-fired plant in Miamisburg, Ohio, by June 2015 as a result of existing and expected environmental regulations, including the Mercury and Air Toxics Standards (MATS). The news comes on the heels of Indianapolis Power & Light Co.’s (IPL’s) announcement that it plans to retire 600 MW of coal-fired capacity to comply with environmental rules.

Cost overruns of nearly $1 billion to build the 582-MW Kemper integrated gasification combined cycle (IGCC) plant in Kemper County, Miss., were underscored on May 20 as Mississippi Power’s Board of Directors took the dramatic step of replacing the Southern Co. subsidiary’s leadership.

Water has been one of the biggest headaches for fracking. But a new method offers a means to fracture shale—using natural gas itself.

EU leaders are beginning to comprehend that there is a practical limit to their dogged pursuit of reducing carbon emissions: their customers’ ability to pay their energy bills each month.

Beware the letter from the Environmental Protection Agency asking seemingly innocuous questions about your plant.

Protecting polar bears was the subject of two recent legal rulings. The courts ensured the bears remain protected but also closed to door to those wanting to use the Endangered Species laws to effect new greenhouse gas rules.

Operators familiar with the unique requirements of burning Powder River Basin (PRB) coal will tell you that it’s not a case of “if” you will have a PRB coal fire, it’s “when.”

Every piece of equipment that transports or processes coal creates some level of particulate matter. Having a strategy for coal dust management in your plant is essential.

Electric motors are the largest energy consumer within a typical industrial plant. Motors also present the greatest opportunity to reduce auxiliary loads, particularly those with high usage factors.

Investments into Australia’s power sector enable the industry to meet the collective goal of becoming a cleaner, greener nation. Download the report.

On Feb. 22, 2013, the U.S. Environmental Protection Agency (EPA) proposed a rule, 78 Fed. Reg. 12459, that will require 36 states to eliminate an exemption to Clean Air Act (CAA) emission requirements for exceedances that occur during periods of startup, shutdown, or malfunction (SSM).

The Wall Street Journal ( WSJ) recently reported that 14 of the 29 states that have adopted a renewable procurement mandate are currently considering legislation that would “water down or repeal” the renewable set-aside. Proponents of repeal describe their motivation as simple economics: Renewable power increases costs to electric consumers.

The LM6000 is the most widely used aeroderivative combustion turbine (CT) in the world, with more than 1,000 installations. As with all CTs, power output and heat rate degrade markedly during warm weather. The ARCTIC (Absorption Refrigeration Cycle Turbine Inlet Conditioning) system eliminates this deficiency.

Modern heat recovery steam generator (HRSG) design must balance operating response with the reduction in life of components caused by daily cycling and fast starts. Advanced modeling techniques demonstrate HRSG startup ramp rates can be accelerated without compromising equipment life.

URS recently performed a combined cycle repowering study to determine the feasibility and economics of repowering an existing steam turbine that went into service in the 1950s. The competing option was building a new combined cycle unit. The results of the study provide insight for others considering the same alternatives.

Only through proper troubleshooting and then solving the underlying problems can control loop performance be improved. Process design certainly plays a role in control loop performance, but experience has shown that the majority of control loops can perform better—provided that the root cause of the poor performance is found and corrected.

Lawrence J. Makovich, PhD, IHS CERA’s vice president and senior advisor for Global Power, predicts a rebound in electricity consumption from recession levels. Specifically, the rebound will be stronger than government projections, led by growth in electricity use by industry.

Have you ever experienced a restaurant menu overflowing with so many tasty entrées that making your selection seemed an impossible decision? Your deliberation probably ended when the waiter began tapping a pen on his order pad and your dinner-mates gave you the evil eye. Picking a commentary topic each month is much like scanning the dinner menu. There are usually many topics that deserve a good slice and dice, but it’s the deadline that forces a decision.

New England’s big push toward gas-fired power collided hard with its historical pipeline constraints this past winter, leaving multiple generators unable to respond to start-up requests from ISO-New England during a major storm. In the wake of the episode, the region is looking for some long-term solutions.

A massive eight-year construction feat to bore a 41-foot-wide, 6.3-mile-long tunnel deep beneath hard rock under the City of Niagara Falls in Ontario, Canada, was successfully completed this March.

Decisions about design and operational options often are determined by one metric: the impact on the cost of electricity produced. An enhanced screening algorithm for power generation system total ownership cost (capital and operating) and thermal performance (output and efficiency) simplifies the analysis.