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O&M
Custom Lift Safely Elevates Coal Ash Conveyor in Tight Space
A Midwestern power plant faced a logistical challenge when it came time to replace its coal ash conveyor. The new conveyor was 110 feet long and weighed a hefty 138 tons—and it needed to be lifted 10 feet
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O&M
Hybrid Heat Sink Manufacturing by Cold Spray Process
Electronic devices, including those in telecommunications and high-power systems, generate heat during normal operation. That heat must be dissipated to avoid junction temperatures exceeding tolerable limits
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Fuel Cells
Understanding Fuel Cells and Their Role in the Green Energy Revolution
Future propulsion and energy systems must be designed to meet the social challenges of climate change, increased energy requirements, and the mobility and energy demands of a growing world population. Fuel
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Hydro
Understanding Hydro Turbine Draft Tubes and Their Importance
Significant engineering goes into every hydropower facility. Among the items that require detailed design work are draft tubes, which are basically conical diffusers installed at the outlet of turbine runners
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Water
How to Effectively Treat Power Plant Cooling Water with Fewer Chemicals
Power plants across the globe are looking for an alternative to traditional chemistry to manage the water used throughout the cooling process. An innovative non-chemical water treatment technology may offer
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Legal & Regulatory
Biden Weighs Preserving Infrastructure EO Focused on Cybersecurity
President Joe Biden on his first day in office sent a clear signal that he would not follow his predecessor’s policies with respect to energy and climate issues. On Jan. 20, 2021, Biden signed Executive
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Commentary
How FERC Order 2222 Will Bring the Power of Choice to Consumers
On a recent visit to my local hardware store, I was struck by all the products on display to help manage my energy needs. The store had LED light bulbs, weather stripping, and fiberglass insulation to help
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Management
Quality Control and Management in Power Industry Capital Projects
Owners must manage capital projects well to keep costs under control and ensure a high-quality product is delivered on time. Good communication, sound procedures and processes, and high-tech tools can help
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News
Valve Actuator Diagnostics for Predictive Maintenance
A predictive approach to finding potential issues with steam or gas turbine valve actuators can help power plant operators realize cost savings and avoid unit downtime. Having a way to analyze actuator
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News
POWER Digest [April 2021]
European Commission Probing Germany Lignite Power Compensation. The European Commission on March 2 opened an “in-depth investigation” to assess whether Germany’s plans to compensate its lignite-fired
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Coal
Improving Load Response and NOx Emissions with Boiler Tuning and Coal-Fired Unit Optimization
Maintaining and operating a coal-fired generating station requires the utmost attention to detail to stay competitive. Focusing on the fundamentals of combustion allows engineers to improve reliability
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O&M
Bolting Tools Important for Operation, Maintenance of Wind Turbines
There is a trend churning in the wind power industry; it involves upgrading wind turbines with newer, more powerful generation systems. Thanks to higher-capacity turbines and more efficient components
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Renewables
Solar and Storage: When It Makes Operational Sense
Energy storage is becoming increasingly important in solar installations, and many renewable energy projects, including wind farms and others, are incorporating storage into their design. Figuring out the
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Gas
Innovative Engineering Results in Successful Steam Blowing Operation
Experience gained by a project team during a steam blowing operation for a combined cycle power project in Indonesia is described in this article. A specific challenge faced by the commissioning team is
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News
Ecuador’s Power Grid Gets a Massive Makeover
Over the past two decades, Ecuador has added a lot of hydroelectric power to its mix. Going forward, natural gas generation is expected to play more of a role in maintaining reliability and adding flexibility
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Connected Plant
How to Put the Power Grid to Work to Prevent Wildfires
While not a new occurrence, in recent years wildfires have wreaked havoc across the western U.S. We have also seen Mother Nature batter coastlines and landscapes around the globe, and the ever-mounting pace of
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Gas
Inland Power Plants Benefit from Marine Engines
Engine-based power plants have proven to be dependable complements for intermittent renewables, but they are also capable of providing steady baseload electricity. With the right technical support, including
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Legal & Regulatory
Future of EPA’s Rule on State Water Quality Certification of Federal Permits
High on the list of Trump administration rules that will be reevaluated by the Biden administration is the Environmental Protection Agency’s (EPA’s) Clean Water Act (CWA) section 401 rule on state water
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Partner Content
Frame 5 Gas Turbine Rotor Repair
Sponsored by:
Mechanical Dynamics & Analysis (MD&A) repaired a Frame 5 gas turbine rotor. MD&A replaced 1st and 2nd stage buckets, repaired the seal area on the row 1 turbine wheel, performed compressor blade blending, and machined the thrust collar to accommodate the newer style thrust bearing at the No. 1 bearing. During their planned major inspection, the […]
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Research and Development
Nanogrid Could Hold Key to Clean Energy Future
The Orlando Utilities Commission’s (OUC’s) vision of a green energy future isn’t as far off as some people may think. The utility’s nanogrid is providing a testing ground for several innovative power
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Connected Plant
How NRG Energy Uses IIoT Technology to Optimize Asset Performance and Predict Failures
Industrial Internet of Things (IIoT) technology is changing how power plants operate. One generating station incorporated new wireless vibration sensors with data from its existing historian system to better
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O&M
Understanding Net Positive Suction Head Requirements for Pumps
A centrifugal pump that performs well under steady-state conditions may be found to cavitate when transitioning between operating modes. Resolving a transient cavitation problem can seem daunting because many
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Commentary
FERC Signals Green Light on Carbon Pricing to Help Reduce Emissions
The body that regulates the interstate transmission of oil, electricity, and natural gas has signaled its willingness to approve regional grid operator plans that incorporate carbon pricing into their rate
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Commentary
How ESG Investing Is Impacting the Energy Industry
Environmental, social, and governance (ESG) investing is rapidly becoming one of the most visible and durable megatrends in the financial community. ESG, or sustainability, refers to corporate activities that
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News
How to Avoid Full Refractory System Failure in Wood Combustion
Wood-burning facilities have seen a spike in refractory problems due to operating units at higher temperatures and at increased capacities than in the past. Refractory professionals offer three recommendations
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O&M
Cleaning Boiler Superheaters with a Mobile Shockwave Method
One of the keys to boiler efficiency in thermal power plants is ensuring fouling and clinkers formed on superheater bundles are routinely removed. A mobile shockwave cleaning method offers one innovative
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News
Flame-Resistant Clothing: Everything You Need to Know
Flame-resistant (FR) garments are an important safety item for workers in the power industry. However, protection varies based on the arc rating of the clothing. Wearers must understand how the FR clothing
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Connected Plant
Supporting Grid Demand with Renewables
Internet of Things (IoT)-based energy management systems centered around edge controllers provide the functionality required to match renewable energy output with power requirements. Traditional baseload power
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O&M
Virtual Switchgear Walk-Through Creates Maintenance Advantage
An Industrial Internet of Things (IIoT) revolution is happening across essential power systems, and it’s helping make the challenges of maintenance walk-throughs a problem of the past. With more data and
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