POWER

Replacing blades on a wind turbine is not a simple task. Blades range from 40 to 60 meters in length and can weigh 16 tons or more. Combined with hub heights that can exceed 100 meters and locations that are, by definition, subject to prevailing winds, replacing blades becomes challenging. Add in the cost of […]

Shaft collars are used as stops or locators on shafts in a wide variety of applications. There are two basic types. One uses a setscrew to lock the collar in place, while the other utilizes a clamp-type collar. Shaft Collar Designs Setscrew collars are the oldest type of shaft collar. These units function by gouging […]

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. In 2009, Wisconsin Power and Light Co., […]

Owner/operator: TNB Janamanjung Sdn. Bhd. 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 […]

Owner/operator: Interstate Power & Light Co. (a subsidiary of Alliant Energy) and MidAmerican Energy Co. (a subsidiary of Berkshire Hathaway Energy) / Alliant Energy 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%.  […]

Owner/operator: NTPC Ltd. 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. For nearly four decades, the 2.6-GW Ramagundam Super Thermal Power Station’s vermillion-banded stacks have towered over the green teak forests of what […]

When I started working in the energy industry in 1999, I had a conversation one day with Adam, a researcher who was writing a report for utilities that were marketing “green energy” programs. At the time, customers’ ability to purchase solar- or wind-generated electrons was limited to fewer utilities, and those companies were looking for […]

Owner/operator: Shenergy Company Ltd. 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. There is no country on earth that has […]

Rate design is sexy again. On July 3, 2015, the California Public Utilities Commission (CPUC) issued its long-awaited decision altering California’s residential rate structure. Most of the focus on the CPUC’s decision has understandably been on the move from a four-tiered to a two-tiered rate structure and the introduction of a Super-User Electric Surcharge for […]

Owner/operator: Great River Energy Recent news has focused on the decline of the coal-fired power industry, but this highly efficient combined heat and power plant offers one template for keeping coal generation viable. Although electricity markets remain challenging, partnering with steam customers can help stabilize revenue. Combined heat and power (CHP), also known as cogeneration, […]

On August 3, 2015, the Environmental Protection Agency (EPA) released a much-anticipated suite of regulations, featuring the final Clean Power Plan’s guidelines for carbon dioxide (CO2) emissions from existing power plants under Clean Air Act section 111(d). This package has sparked great interest, and early reactions run the gamut from enthusiastic support to entrenched opposition. […]

Rooftops with arrays of tiny wind-powered microturbines and hydro microturbines generating power as water flows through municipal drinking water systems or the outflow of municipal sewage treatment systems?  They’re real. For many in the electric power business, the term “microturbine” conjures up images of small, gas-fired machines, a fad a decade ago that never caught […]

Warren Buffett bought Nevada’s NV Energy two years ago, a move widely seen as a play for solar and renewable generation. That’s working out. But as the company transitions away from legacy coal and high-priced renewable contracts signed years ago, large customers are rebelling, and the company faces a challenge to keep its big dog […]

Many coal-fired power plants maintain fuel stockpiles for use when the normal delivery of coal to the plant is disrupted. It is not uncommon for a 30-day supply to be maintained in the pile. Most of these

Power plants use indicators to monitor process parameters such as pressure, flow, temperature, voltage, current, and vibration. Unless a facility is relatively new, it likely has analog panel meters; some

Emerging from decades of isolation, fragility, and conflict, Myanmar has, since 2011, ushered in a reformist government and embarked upon unprecedented political and economic reforms. Among those reforms has

Sharing borders with Saudi Arabia, Israel, Syria, and Iraq, Jordan sits in a very precarious part of the world. To make matters worse, the country’s economy is among the smallest in the Middle East. Chronic

The Turkish electricity market was opened to competition in 2001 when the Turkish Grand National Assembly passed the Electricity Market Law, which unbundled its generation, transmission, and wholesale power

In the early 2010s, the Electric Reliability Council of Texas (ERCOT) was staring down the barrel of dangerously low reserve margins, a combination of growing demand and an energy-only wholesale market that

On June 29, much of the power sector rejoiced when the U.S. Supreme Court struck down the Environmental Protection Agency’s (EPA’s) Mercury and Air Toxics Standards (MATS) rule, finding that the EPA had

The Kingdom of Saudi Arabia is facing major population growth over the next several decades and, with it, rapidly growing electricity demand. In 2013, the country generated 292.2 TWh of electricity, which

For decades, hydropower plants were mainly built and operated as a cost-efficient source of clean electricity. But despite more than a century of development, there is still scope for expanding generation from

As with many areas in North America and Europe, electricity generation in the Canadian province of Alberta is in transition toward cleaner, more efficient, more water-wise power. According to statistics from

Though most power generators and states might have preferred to not deal at all with a new rule regulating greenhouse gas emissions, the final Clean Power Plan (CPP), released August 3, gives most of the power

There is a synergistic relationship among the three major cooling water treatment issues: corrosion, scale or deposit formation, and microbiological fouling. In order to control one, you need to control all

The Korea Radioactive Waste Agency (KORAD) on July 13 disposed its first waste in a newly completed low- and intermediate-level nuclear waste disposal facility underground at Gyeongju in North Gyeongsang

While having lunch at a downtown café with my friend the biology professor, the subject of animal extinction arose. “When it comes down to it, we really don’t know exactly why most prehistoric species

A subsidiary of Rosatom’s nuclear engineering division, Atomenergomash, says a new nickel-alloy steel grade developed for the VVER-TOI core shell will extend the service life of the reactor vessel up to 120

It’s certainly no secret that for many years, the power industry has been a top target for hackers around the world. However, whereas in the past, many of these attacks were relatively easy to block using