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Power


Monthly Issue | March 1, 2016

A Brief History of U.S. Coal Ash Since the Kingston Spill

The disposal of coal ash, a combustion byproduct from coal-fired power plants, was propelled into the national conversation on December 22, 2008, when the Tennessee Valley Authority (TVA) Kingston power…


Notable Coal Ash Spills [Slideshow]

The coal ash spill in December 2008 at the Tennessee Valley Authority's coal-fired Kingston power plant may have triggered regulatory action, but it wasn't the first or the most devastating…


THE BIG PICTURE: Drops in Water for Power


Will Tomorrow’s Power Plants Have Enough Water?

In a growing number of regions, power plants are competing with many other users for scarce freshwater supplies, and the situation is likely to get worse. The International Energy Agency…


Belo Monte Hydro Plant Stunned, Revived Again

Legal battles to stall the 11-GW Belo Monte hydroelectric dam—being built on the Xingu River in the Amazon forest for one of the world’s largest power plants—are raging on in…


South Korean Grid Connects World’s First APR1400 Nuclear Reactor

The world’s first 1,400-MW Advanced Pressurized Reactor (APR1400), a South Korean Generation III design, has now been connected to the grid. Nearly eight years since construction kicked off in October…


Siemens, GE, MHPSA Advance Gas Power Efficiency

Gas power technologies set new benchmarks over the past few months as gas turbine “gorillas” Siemens, General Electric (GE), and Mitsubishi Hitachi Power Systems Americas (MHPSA) all reported new achievements.…


Lower Coal Utilization in China Pegged in Part to Massive Coal Power Glut

Tremors in China’s economy rattled its power sector last year. For the first time since the Cultural Revolution in 1968, the country’s power generation dropped from the previous year—modestly, by…


China Is Readying a 60-MW Floating Nuclear Power Plant

China, which is seeing a nuclear plant boom with 30 reactors already in operation and 24 under construction, is accelerating development of its first 60-MWe (200-MWt) floating nuclear reactor. China…


Researchers Find a New Energy Role for Desert Sand

Desert sand from the United Arab Emirates could be used in concentrating solar power (CSP) facilities to store thermal energy up to 1,000C. And replacing the typical heat storage materials…


POWER Digest

Exelon Completes Peach Bottom Reactor Uprate. An extended power uprate (EPU), begun in 2009 to increase the output from the Peach Bottom Atomic Power Station by 270 MW, was completed…


Using Steam Turbine Warming Blankets to Reduce Startup Time and Rotor Stress

Steam turbines have to be warmed slowly to avoid excessive differential expansion of the various components, rotor stress, and potentially reduced service life. For that reason, startup times must be…


Coal Ash Hits the Big Time

Regulatory attention is rarely welcome in the best of times. When the attention is focused on a practice that has been standard operating procedure for more than a century—especially a…


Zero-Discharge Pozzolanic Brine Solidification: Another Option for Treating FGD Wastewater

With its expected 30% to 50% lower capital expense and 20% to 40% lower operating cost than traditional zero-discharge systems, a new approach to compliance with the EPA’s effluent limitation…


Desalination Expands, but Energy Challenges Remain

Fearing widespread water scarcity, companies and governments around the world are scoping out desalination technologies to convert seawater to potable water. That’s a rocky path that involves lots of energy…


Germany’s Energiewende at a New Turning Point

In 2015, Germany added more renewable power than ever before, but now the government is putting strict limits on future renewables growth. As Germany’s Energiewende slows, some surprising competitors are…


Beyond the Firewall: Best Practices for Cybersecurity Risk Management

Good power industry cybersecurity risk management goes far beyond stopping intrusions. Preparing for when—not if—your operation comes under cyberattack means anticipating the potential damage to your company’s finances, reputation, and…


Xcel Energy: Committed to Renewables, but Going Its Own Way

Powerful regional utility Xcel Energy, which owns electric and gas utilities in the middle of the U.S. featuring major wind and growing solar resources, is making a big commitment to…


New Metering Solution Controls Condensate in HRSG Systems

Water in steam tubes can lead to trouble. However, a new solution, utilizing ultrasonic flowmeter technology, allows precise water detection in heat recovery steam generator (HRSG) systems, giving operators the…


Monitoring and Treatment of Closed-Loop Cooling Water Systems

In part because they are closed-loop systems, it can be easy to ignore power plant cooling water systems that support the reliable functioning of everything from stator bars in the…


Why the Clean Power Plan Needs a Dynamic Reliability Safety Valve

The U.S. Environmental Protection Agency’s (EPA’s) Clean Power Plan is arguably the most ambitious and far-reaching regulation in the agency’s history. America’s electric cooperatives oppose the rule for a variety…


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