Coal

Navajo Nation President Ben Shelly signed a land lease extension on April 30 for the 2,250-MW Navajo Generating Station, but not before adding several amendments to the agreement. The early lease renewal with the Navajo Nation must be in place before plant owners could consider making future investment in expensive new air quality control equipment.

Drought is a serious vulnerability for the power sector, witnesses testified at a full committee hearing held last week in the Senate to assess the impacts of drought on the power and water sectors. Members of the panel invited by the Senate Committee on Energy and Natural Resources offered a number of possible solutions for federal agencies and power companies that could mitigate adverse effects from drought.

India’s Reliance Power in March synchronized the first of six 660-MW units of its Sasan Ultra Mega Power Plant (UMPP) in the state of Madhya Pradesh, readying it to supply power to 14 distribution companies across seven states. The plant (Figure 1) has been hailed as India’s first supercritical project to integrate a coal mine—an important achievement in a country that is battling chronic coal shortages. Though India has large coal reserves, domestic mining companies are struggling to keep up with demand needed to sustain its existing coal plants, which account for 55% of its generation.

My career began as a results engineer testing large utility boilers. Ever since that first assignment, I have remained interested in the details of how the measurement and control of the furnace fuel and air inputs can make a huge difference in overall boiler performance. Given that plant operations and maintenance (O&M) budgets are slimmer today than in recent memory, my experience is that targeted performance testing can provide important feedback for prioritizing maintenance expenditures. The combination of plant testing and targeted O&M expenditures provide the best opportunity for efficient and reliable plant operations. I call this approach to plant efficiency improvement “performance-driven maintenace.”

By the end of 2013, one year ahead of its goal, the province of Ontario will be virtually coal-free—a first for a North American jurisdiction. How did the most populous part of Canada go from 25% to 0% coal-fired generation in just a decade, and what does this phaseout mean for the rest of the world?

Germany has chosen to transform its energy system within a few decades—an ambition that has evoked equal admiration and confusion. Has Europe’s largest economy embarked on a rational path to an energy future that will make it the bellwether for global acceptance of renewables, or will the complex array of current challenges encumber its grand transformation?

China has gone through three periods of nationwide power shortages since 1978. The previous two shortages were mostly caused by the lack of installed generation capacity. However, the third—which has severely restricted economic development—is a consequence of institutional problems that must be corrected.

The number of regulated air emission constituents is increasing while the acceptable amounts for release are decreasing. In the long run, picking the most flexible multipollutant technology is surely the least cost option.

A settlement between the federal government, the Sierra Club, and Wisconsin Power and Light Co. (WPL) on Monday could require the Madison-based Alliant Energy subsidiary and other defendants to invest more than $1 billion in pollution controls and retire and refuel at least four units at three Wisconsin coal-fired power plants to resolve alleged Clean Air Act New Source Review violations.

Revisions proposed on Friday by the Environmental Protection Agency (EPA) to technology-based effluent limitations guidelines and standards could set the first federal limits on the levels of toxic metals in wastewater discharges from steam electric power plants. The proposed rule would help reduce pollutants in U.S. waterways from coal ash, air pollution control waste, and other power plant waste, but they could come at a cost of between $185.2 million to nearly $1 billion a year, the agency said.

Bipartisan legislation introduced on Wednesday by a bicameral group of lawmakers seeks to give renewable energy project investors access to an existing corporate structure whose tax benefits are now only available to investors in fossil fuel–based energy projects.

Gina McCarthy, who has served for the past four years as assistant administrator for the Environmental Protection Agency (EPA) Office of Air and Radiation, responded to questions from a Senate committee on April 11 in a hearing on her nomination to become the next administrator of the EPA.

The U.S. Environmental Protection Agency (EPA) deadline for placing greenhouse gas (GHG) emission limits on new fossil-fueled power plants has come and gone. Comments from EPA staff indicate little urgency in setting a new deadline. Meanwhile, prospects for FutureGen 2.0, originally developed with GHG limits in mind, are looking bleaker.

The carbon intensity of the global energy supply has barely budged in more than two decades despite otherwise successful efforts in deploying renewable energy, the International Energy Agency (IEA) warns in an annual report submitted to the Clean Energy Ministerial (CEM) on Wednesday.

Polish utility PGE scrapped plans to build two 900-MW coal-fired power units worth $3.6 billion at a plant near the southwestern city of Opole, citing falling electricity prices and weak demand.

Dr. Ernest Moniz, President Obama’s nominee for the next Secretary of Energy, appears poised for easy confirmation after responding to questions from the Senate Energy & Natural Resources Committee on April 9. His remarks indicated support for, among other things, small modular reactors, carbon capture technology research, and moving forward with the recommendations of the Blue Ribbon Commission on America’s Nuclear Future.

The proposed 2014 federal budget that President Obama submitted to Congress on Wednesday includes increases for the Department of Energy in general and for DOE-sponsored research and development (R&D) in particular. It also shows a slight decrease in funding for the Environmental Protection Agency (EPA).

The increasing cost of natural gas relative to coal is expected to increase coal’s share of total generation from 37.4% in 2012 to 39.9% in 2013, according to the U.S. Energy Information Administration (EIA) April release of its Short-Term Energy Outlook (STEO). Though that would leave coal’s percentage below its 42.3% share in 2011, it indicates that gas may not be on an inevitable path to overtake a significantly greater share of the generation pie.

The U.S. Department of Justice (DOJ) and the Environmental Protection Agency (EPA) announced on Monday that Dominion Energy has agreed to pay a $3.4 million civil penalty and spend approximately $9.8 million on environmental mitigation projects to resolve Clean Air Act (CAA) violations.

The Wyoming state Industrial Siting Council has approved an amended permit for the $800 million, 300-MW Two Elk coal-fired power plant, which was first proposed in 1996 but has yet to break ground.

The 3,600-MW Vuhlehirska Thermal Power Plant in Svitlodarske, Ukraine, was heavily damaged on Mar. 29 by a fire that killed one worker and seriously injured at least eight others. Four units at the seven-unit coal-fired plant were destroyed, and the region was temporarily without power and heating.

The U.S. Environmental Protection Agency (EPA) on March 28 finalized updates to emission limits for new power plants under the Mercury and Air Toxics Standards (MATS). The rule includes emission limits for mercury, particulate matter (PM), sulfur dioxide (SO₂), acid gases, and certain individual metals.

Southern Co. has withdrawn plans to seek a $1.5 billion federal loan guarantee for the 582-MW lignite-fired integrated gasification combined cycle (IGCC) power plant its Mississippi Power Co. unit is building in Kemper County.

Nevada power company NV Energy Inc. has proposed a plan to accelerate the retirement of its coal-fired generating facilities and the construction of natural gas and renewable power plants.

The United Arab Emirates (UAE) is made up of seven emirates, yet two dominate the demographic, economic, and geopolitical landscape. Download the report.

Paradise Fossil Plant Unit 2’s record-setting performance of 259+ days of continuous operation for a cyclone-fired boiler is attributed to excellence in plant operations and maintenance processes, a diligent and well-trained staff, and leadership that places high value on both. The Paradise experience proves that plants can’t help getting older, but they don’t have to get old.

Steam turbine rotors bend during operation, but the bearing and supports are designed to keep the static and dynamic forces under control. However, bending can cause impact between stationary and rotating parts—often cascading impacts. An operator of many utility-scale steam turbines shares its extensive field experience identifying the root cause of failures as well as […]

A rule proposed by the Environmental Protection Agency (EPA) directs 36 states to revise their Clean Air Act State Implementation Plans (SIPs) to eliminate exemptions for excess emissions of air pollutants at power plants during startup, shutdown, or when the plant malfunctions.

Power plant emissions of sulfur dioxide (SO₂) and nitrogen oxides (NO_x) in the U.S. declined to their lowest level since 1990, the Energy Information Administration (EIA) said in early March.

The Environmental Protection Agency (EPA) estimates final regulations curbing greenhouse gas (GHG), mercury, and air toxics emissions from new sources could appear in the Federal Register by the end of April. Also forthcoming are final cooling water intake rules and proposed effluent guidelines. The coal ash rule, which has no target date for a final rule, may not be issued this year, the agency said.