Top coal plants face very different regulatory and market conditions that are factors of their geographic location, but all are dedicated to cleaner, more efficient operation. This 69 page PDF guidebook provides a detailed breakout on what’s working.
- Springerville Generating Station Earns PRBCUG 2014 Honors
- Xcel Energy’s Harrington Generating Station Earns Powder River Basin Coal Users’ Group Award
- PRB Coal Users’ Group Plant of the Year: Ameren’s Rush Island Energy Center
- OPPD’s North Omaha Station Takes PRBCUG Honors
- Mátra Power Plant, Visonta, Hungary
Hungary’s largest coal-fired power plant is a model of efficiency and environmental impact despite its 1960s-era vintage. Continual upgrades have kept the plant running smoothly, and a modern dense slurry ash-handling system keeps combustion residuals under control and allows for a zero liquid discharge posture.
- Camden Power Station, Mpumalanga Province, South Africa
South Africa began mothballing coal-fired plants almost 25 years ago when reserve margins were high and independent power producers (IPPs) were invited to invest. Ten years later, mass electrification, rapid industrialization, and low power prices that failed to attract IPPs caused reserves to dip to dangerous levels. Camden was one of three coal plants brought out of retirement to keep the lights on.
- Hitachinaka Thermal Power Station Unit 2, Tokai, Ibaraki Prefecture, Japan
Think your project was tough? Tokyo Electric Power Co. (TEPCO) finished one of the world’s most efficient coal-fired power plant on time despite a 9.0-magnitude earthquake that devastated both the site and much of the country.
- Mundra Thermal Power Plant, Mundra, India
The nine-unit Mundra thermal power plant is one of the largest coal-fired plants in the world, but it takes up minimal space and uses both fuel and water efficiently.
- Sesa Sterlite Captive Power Plant, Jharsuguda, Odisha, India
Operating a coal-fired plant of any sort in India is a challenge these days, but Sesa Sterlite’s 1,215-MW plant is also tasked with supplying vital power to an adjacent aluminum smelter. Despite a difficult regulatory environment and ongoing coal market difficulties, the plant has not just met expectations but has risen well above them.
- Trianel Coal Power Plant Lünen, North Rhine-Westphalia, Germany
Although Germany’s Energiewende is all about reducing consumption and transitioning from nuclear and fossil fuels to renewable energy, it hasn’t completely halted the development of new coal-fired facilities. The Lünen plant demonstrates that even in countries keen on renewables, coal is still an important resource.
- Cliffside Steam Station Unit 6, Cliffside, North Carolina
With a mandate to cut emissions, improve efficiency, and increase output, Duke set out to replace the four World War II–era units at Cliffside Steam Station with a modern, state-of-the-art supercritical plant. The result was one of the cleanest, most efficient coal plants in the country, with twice the output and half the emissions of its predecessor.
- Edwardsport Generating Station, Knox County, Indiana
Courtesy: Duke Energy Duke Energy Indiana was at an energy crossroads a decade ago. The last two operating units at the Edwardsport Generating Station were scheduled for retirement, new baseload generation was required, and using Indiana coal to fuel a new plant was desirable. Duke Energy selected integrated gasification combined cycle (IGCC) technology to provide 618 MW of baseload power for its customers. Duke Energy declared the IGCC plant commercial in June 2013.
- Mundra UMPP, Gujarat, India
Tata Power’s 4-GW ultra-mega power plant near the port city of Mundra in the western state of Gujarat became fully operational this March despite serious fuel challenges, establishing India’s first 800-MW units based on supercritical technology.
- Prairie State Energy Campus, Washington County, Illinois
The 1,600-MW Prairie State Energy Campus uses the latest coal technology to burn Illinois coal from the Lively Grove mine, located adjacent to the plant. In planning since 2001, the second unit of the two-unit, $4.93 billion plant entered commercial service in November 2012, thus completing the largest coal-fired plant built in the U.S. in 30 years.
- Shentou Second Power Plant, Shuozhou City, Shanxi Province, China
A modern coal-fired power plant may operate with a thermal efficiency of 40% to 45%, which means that 55% to 60% of the fuel energy entering the plant is rejected as waste heat up the stack or to the condensing system. Economic recovery of that low-level energy has stymied plant designers for years. Shentou Second Power Plant presents an excellent solution.
- National Capital Power Station Dadri, Gautam Budh Nagar, Uttar Pradesh, India
India’s state-owned generator NTPC operates a large fleet of power plants across the nation, and one of its top performers is found outside the capital of New Delhi. Staff at NTPC Dadri have taken a proactive, innovative approach to maintaining their plant, making it one of the most efficient in India despite its 1990s vintage.
- Tanjung Bin Energy Power Plant, Johor, Malaysia
Building a power plant on a site previously used for an aquaculture farm comes with more than a few challenges. For the Tanjung Bin Energy Power Plant, that meant some redesign and rework was required. Even so, the GE-led construction consortium made adjustments and delivered the state-of-the-art ultrasupercritical project on time and on budget.
- Coal Combustion By-products Aren’t All Bad: The Beneficial Use Solution
While it’s true that coal ash can be an environmental hazard if it’s not properly managed, there are a lot of positive uses for coal combustion products that actually provide benefits to the world. Many beneficial uses have been around for decades, but valuable new options are being developed, and some are starting to make their way into the market.
- Columbia Energy Center, Portage, Wisconsin
Alliant Energy and its co-owners are investing $900 million to modernize the Columbia Energy Center with a new suite of air quality control equipment and plant improvements that will increase its output and efficiency while reducing emissions. The plant makeover ensures its continued operation for decades to come.
- Manjung Unit 4, Perak, Malaysia
Ultrasupercritical technology is the current gold standard for coal-fired plants, but Malaysian national utility Tenaga Nasional Berhad had some unique requirements for its newest, most efficient plant. With a client lacking an indigenous source of coal and needing wide fuel flexibility, Alstom delivered a state-of-the-art plant that can handle an enormous variety of coals.
- Ottumwa Generating Station, Ottumwa, Iowa
Alliant Energy recently completed a major renovation of the Ottumwa Generating Station to improve air quality, plant reliability, and efficiency. By doing so it also reduced its carbon footprint by ~5.6%.
- Ramagundam Super Thermal Power Station, Karimnagar, Telangana, India
One of NTPC’s first coal-fired facilities, the 2.6-GW Ramagundam plant, is aging well, delivering noteworthy performance metrics that distinguish it from other plants in the state-owned generator’s big coal fleet.
- Shanghai Waigaoqiao No. 3, Shanghai, China
In a nation seeing breakneck growth in its power sector and a drive toward cleaner, more efficient generation, coal remains the backbone. That means hard work is ahead for China in power sector innovation, and a plant in Shanghai is leading the way.
- C.P. Crane Generating Station, Middle River, Maryland
A desire to do things right led Constellation Energy to invest $70 million to convert its 400-MW C.P. Crane Generating Station to burn Powder River Basin coal and develop the culture critical to making that conversion a success. In addition to being named a 2012 POWER Top Plant, the PRB Coal Users’ Group recognized the plant for its efforts with its Plant of the Year Award.
- Merrimack Station’s Clean Air Project, Bow, New Hampshire
To comply with the New Hampshire law governing mercury emissions, Merrimack Station management recently installed a single scrubber system on the facility’s two coal-fired boilers. The plant’s Clean Air Project was completed on Mar. 30, 2012, ahead of schedule and under budget. Now the 440-MW Merrimack Station has reduced its mercury and sulfur dioxide emissions by more than 95% and is one of the cleanest coal-fired power plants in the nation.
- Northside Generating Station, Jacksonville, Florida
Since the Northside Generating Station’s two repowered units were placed into service in 2002, a series of modifications and repairs have been undertaken to make its two circulating fluidized bed boiler plants reliable. The two chief problems were ash agglomeration on heat transfer surfaces and poor Intrex heat exchanger performance. JEA reports these problems have been permanently resolved, and data shows the two units have joined the top tier of reliable fossil plants.
- Tanjung Jati B Electric Generating Station’s Expansion Project, Central Java Province, Republic of Indonesia
Units 3 and 4 expand the Tanjung Jati Electric Generating Station’s capacity by adding 1,320 MW of reliable power that helps to boost Indonesia’s growing economy. Now the 2,640-MW coal-fired facility provides approximately 12% of the electricity available on the Java-Bali grid. The new units feature a flue gas desulfurization system and electrostatic precipitators that reduce air emissions and protect the environment.
- Virginia City Hybrid Energy Center, Virginia City, Virginia
Dominion’s 585-MW Virginia City Hybrid Energy Center, located in southwestern Virginia, relies on two circulating fluidized bed boilers that burn coal and local waste coal mixed with up to 20% biomass. The project also features one of the industry’s largest air-cooled condenser systems to minimize the plant’s water usage. The $1.8 billion project entered commercial service July 10, on budget and on schedule.
- Yeongheung Power Station Unit 3, Yeongheung Island, South Korea
The insatiable power demands of a huge modern metropolitan area like Seoul call for both big thinking and flexibility. The successful launch of this large, state-of-the-art supercritical coal plant required adapting to unforeseen changes in fuel supply while meeting highly restrictive environmental controls. The resulting high-availability facility is a POWER Top Plant.