POWER

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 […]

For all the words published over the past several years about electric utility customer defection—thanks to the combination of lower-cost residential solar photovoltaic systems, tax incentives, and net

Look to the East and you’ll see a major initiative to transform New York’s electric grid into a cleaner, more efficient system. Look to the West and you’ll find ambitious clean energy legislation in California. Yet utility executives and federal regulators recently gathered in the Midwest to highlight how this region is ground zero for […]

Brazil’s environmental protection agency, IBAMA, in early August canceled development permits for an 8-GW hydroelectric project on concerns about its social and ecological impacts. If built as proposed by a consortium of multinational companies—including Brazilian parastatal Eletrobras and private sector partners GDF Suez/Engie, EDF, Camargo Correa, Neoenergia, COPEL, and Endesa Brasil—the São Luiz do Tapajós […]

One of the world’s first offshore tidal energy arrays was connected to Scotland’s grid this August. On its heels is the grid connection of a second array that is owned by a different company. Nova Innovation, a Scottish tidal energy company founded in 2010, on August 28 grid-connected the second of three 100-kW Nova M100 […]

When a gas turbine goes down, recovery can be an expensive, time-consuming process. Knowing what can go wrong and how to anticipate turbine failures can help you avoid a difficult unplanned outage. Gas-fired power is hot and getting hotter. The Energy Information Administration estimates that 2016 will be the first year ever that the U.S. […]

Mexico to Launch Pilot Carbon Trade Program. Mexico will launch a yearlong simulation of a cap-and-trade program this November. The pilot program will involve up to 60 companies, allowing them to adapt a

For all its record-breaking achievements for speed, innovation, and efficiency, the 3,960-MW Sasan Ultra Mega Power Project should have been a POWER Top Plant. But the unique project has been plagued by serious setbacks—including loss of life—that show how perilous the plant construction journey can be. A decade ago, India was suffering a power crisis […]

Researchers from Cornell University have developed an oxygen-assisted aluminum/carbon dioxide power cell that uses electrochemical reactions to capture carbon dioxide (CO2) and produce power in the process. The cell developed by Lynden Archer, the James A. Friend Family Distinguished Professor of Engineering, and doctoral student Wajdi Al Sadat would use aluminum as the anode and […]

Under a government decree published in early August, Russia will build up to 11 new nuclear reactors by 2030, including two BN-1200 sodium-cooled fast-neutron reactors. Russia already has 36 operating reactors

Security is taken very seriously at most power plants. Fences and other barriers are usually installed before construction of a plant even begins to keep curious busy-bodies, thieves, protestors, and—at the far end of the spectrum—saboteurs and terrorists out of sensitive locations. Some plants have dedicated security staff patrolling areas both inside and outside of […]

Lakeland Electric, the third-largest public power utility in Florida, reported that it saved $12 million in fiscal year 2015 through the use of a coal treatment at its McIntosh Power Plant Unit 3. The savings

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 […]

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. […]