POWER

The push for clean energy notwithstanding, no silver bullet can cure the challenges that our continued use of carbon engenders. Every form of energy production, green or black, clean or dirty, presents downsides. Siting an energy facility—whether clean energy, hydro, natural gas, coal or nuclear—inherently imposes some form of environmental harm. For renewables, one of […]

Owner/operator: Mátra Power Plant Co. Ltd. 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. Unlike some of its […]

Owner/operator: NTPC Ltd. 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 […]

Owner/operator: Malakoff Corp. Bhd. 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 […]

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 […]

Like so many other power plant functions these days, regulatory and standards compliance can be automated. Know what you want an automated system to do before you make a vendor decision. As North American Electric Reliability Corp. (NERC) Critical Infrastructure Protection (CIP) enforcement deadlines and audit dates loom—notably, CIP-003-6 in April 2017, which addresses the […]

High-speed turbine rotor balancing was once rare because of the costs and logistical challenges involved in doing it during an outage. That’s begun to change as economic options emerge, and experience is showing that high-speed balancing can pay big dividends in reliability and maintenance costs. To a maintenance engineer or fleet manager, unwanted vibration in […]

South Africa’s state-owned utility faces recent generation shortages, plant construction problems, load shedding, and uncertainty at the African continent’s only nuclear power plant. And that’s just on the generation side. Moves on the business planning and regulatory side are painfully slow and could, some argue, be writing the utility’s obituary. Eskom, South Africa’s state-owned monopoly […]

Asset data is crucial in the power generation industry. Without it, utilities are forced to speculate about how long their assets will last, when they will need repair, and which strategies will maximize plant efficiency. With it, plant owners have the tools to drive down operational and maintenance costs while ensuring highly reliable power delivery. […]

In an industry as slow-moving as power generation, where planning horizons are measured in decades and assets can remain in operation for the better part of a century, it’s rare that things happen fast enough to catch anyone by surprise. But that’s exactly what’s happened to the U.S. merchant nuclear business over the past four […]

Owner/operator: Louisville Gas and Electric Co. and Kentucky Utilities Kentucky has always been coal country, but times are changing, and its generation fleet is changing with them. Facing the prospect of costly emissions control upgrades at the 60-year-old Cane Run Generating Station, Louisville Gas and Electric and Kentucky Utilities opted to retire the aging facility […]

Owner/operator: A2A When a plant goes into mothballs—especially because of poor economics—it’s often a harbinger of impending retirement. Upgrades to improve performance may help, but in changing markets, returns can be highly uncertain. Italian energy firm A2A partnered with GE to return one plant to profitability with a combination of hardware improvements and cloud-based analytics. […]

To alleviate chronic power shortages, the first gas turbine unit at this fast-tracked 640-MW plant was synchronized to the grid within a record-breaking 159 days—two days ahead of schedule. The revolution in

Owner/operator: APR Energy Within roughly 90 days, APR Energy set up a 60-MW turnkey power plant—complete with novel natural gas filtration and compression solutions—to support the operations of a massive Egyptian polyethylene plant until a bigger, permanent power plant can be built. It all began in April 2013, when Egyptian Ethylene and Derivatives Co. (ETHYDCO) […]

Owner/operator: PSEG New Jersey’s second-largest power plant has been a leader since it opened in 2006, when it was named a POWER Top Plant for its use of reclaimed water for cooling and for fitting an advanced four-unit facility into a constrained brownfield site. Now PSEG’s Linden Generating Station becomes a two-time Top Plant winner […]

Owner/operator: We Energies Converting a boiler’s fuel source from coal to natural gas involves a lot of planning and reengineering. When the plant is the sole steam service supplier to a downtown metropolitan area, it also involves a rigid schedule. The Valley Power Plant overcame several challenges to successfully complete one such conversion. The Valley […]

The second World Nuclear Exhibition was held at a moment in time when the prospects for nuclear power are both tantalizing and frustrating. One thing is clear: The dynamics of the nuclear power industry have changed recently—and so have the solutions proposed for achieving greater certainty. One of the strongest arguments nuclear power has going […]

As the U.S. enters the final stretch of what seems like an interminable presidential campaign, I’ve been thinking about the motto “ e pluribus unum” (out of many, one). That motto also applies to the power industry. The U.S. is composed of many states, individuals with family origins in virtually every part of the world, […]

As combined cycle gas turbine plants are called upon to play a larger and more flexible role in the generation mix, it’s important to schedule a comprehensive assessment of major components at key intervals to ensure reliable operation. Just like humans, power plants can benefit from regularly scheduled condition assessments, which are sometimes called “health […]

A new assessment tool developed by engineers at Oregon State University (OSU) could allow people, agencies, and communities interested in developing small-scale hydropower plants in remote places to easily and accurately assess whether a potential project would meet their current and future energy needs. The free, open-source computer modeling package dubbed the Hydropower Potential Assessment […]

Deciding to retire a coal-fired unit is often a tough call, but even tougher decisions follow. The next steps taken by a generation owner have multiple economic, environmental, and stakeholder consequences. Since 2000, U.S. generating companies (Gencos) have announced the closure of more than 200 coal-fired power plants, totaling 102 GW of generating capacity. Closures […]

Danish firm DONG Energy has begun building one of the world’s first bioresource power plants that will produce electricity from household waste by using enzymes to convert the waste to biogas. The commercial 5-MW plant under construction in the UK city of Northwich could be commissioned in early 2017. It will use the company’s proprietary […]

Inexpensive natural gas, increased renewable energy utilization, and ever-tightening environmental regulations have limited the use of waste feedstocks for power generation. But while often dismissed out of hand, with proper planning and understanding of the market, power producers can realize benefits from waste-to-energy projects. It was a tropically hot day at the plant, and it […]

UK Abolishes Climate Change Department. As part of the major governmental shakeup triggered by Brexit—the UK’s momentous vote to leave the European Union—newly appointed UK Prime Minister Theresa May

The U.S. nuclear power business is in trouble, and Exelon has six units totaling more than 5,300 MW of dependable capacity on the chopping block. How will the Chicago electricity giant respond? Perhaps by acquiring more nuclear capacity? Chicago-based Exelon Corp., the largest nuclear power generator in the U.S., is facing what could be the […]

Japan’s Nuclear Regulation Authority (NRA) this June approved 20-year license extensions for the aging Takahama 1 and 2 reactors, a first for the power-strapped country that has been conflicted about the future of its nuclear power plants since the Fukushima Daiichi catastrophe in 2011. A regulatory system established in the aftermath of Fukushima limits the […]

P OWER Editor Gail Reitenbach interviewed King Lee of Lloyd’s Register on June 29 at the World Nuclear Exhibition in Le Bourget, France. The firm is a “non-profit distributing charity with a public benefit

Ocean Power Technologies (OPT) deployed its first commercial PB3 PowerBuoy—a wave energy conversion system that incorporates energy storage—off the coast of New Jersey this July. The Pennington, N.J.–based firm has been working to advance its PowerBuoy technology since the firm was founded in 1994. Development of the wave energy conversion technology for naval and civilian […]

With costs for a restart escalating, Japan is considering scrapping its troubled Monju fast breeder nuclear reactor, just as a never-started nuclear plant in the Philippines may get a new lease on life. Monju May Be Finished Japan Times reported that readying the Monju plant for restart “would cost several hundred billion yen.” Sources said that […]