Technology

Southern California Edison (SCE) put online the world’s first battery–gas turbine hybrid system on March 30 in Norwalk, Calif., pioneering a new direction in the way power could be generated and stored

Proportional-integral-derivative (PID) control is one of the most common types of automatic control used in the power industry. A PID controller continuously calculates an error value as the difference between

The English Supreme Court is due to hear an appeal on the long-running dispute in connection with the Robin Rigg Offshore Wind Farm. The decision promises to be significant for the offshore wind industry, its

The human brain is an amazing thing, but it has limitations. However, with the advent of machine learning, the limitations of the human brain no longer have to be the limitations of civilization. Machine

Flow reversal in piping systems can degrade equipment performance and cause significant water hammer, potentially resulting in catastrophic failure. Power plant condenser cooling water systems—or circulating

Inspecting the internal condition of a turbine generator is an important maintenance activity, but tearing a unit apart is a long and expensive process. Borescope inspections offer one way to minimize work

It began as an academic argument over how the world could meet a goal of 90% reductions in carbon dioxide emissions by 2050, known as “deep decarbonization.” Underneath the academic language is a fight

In May, GE’s Power Services and Ansaldo Energia separately completed initial validation of two gas turbines designed for high efficiency and flexibility: the 9EMax and the GT36. GE also announced first fire

Watts Bar 2, the Tennessee Valley Authority’s (TVA’s) nuclear unit that began commercial operation last October, has been shut down indefinitely owing to a major issue with a condenser revealed this March. TVA spokesman Jim Hopson told POWER on May 11 that the reactor—the first new nuclear unit to begin operations in the U.S. in more than […]

The owners of the Vogtle and V.C. Summer nuclear expansions separately secured a few more weeks to allow work to continue onsite at each project while they decide how to proceed with the half-built AP1000 reactors after Westinghouse’s financial debacle. In Georgia, owners of the project to expand Plant Vogtle extended an interim assessment agreement […]

Power-short Indonesia has been mulling building a nuclear power plant for nearly 15 years, and it is exploring a number of novel options, including high-temperature gas-cooled reactors (HTGRs) and a thorium

An inlet air cooling (IAC) system offers one of the most cost-effective ways to improve gas turbine (GT) performance—especially during the peak hours of hot summer months. After all, GT output depends on

Stanwell Power Station, a 1,460-MW coal-fired power plant located in Queensland, Australia, faced a dilemma. The reliability of its fire protection system was questionable. Many of the plant’s multiple jet

Hydrogen-powered fuel cells were supposed to be the “Next Big Thing” a decade ago, but the hype ran well ahead of the market and technology. Yet some quiet advances and steady work have the sector on the

Grid-connected batteries have long been touted as a tantalizing prospect that could help balance electricity supply and demand as the amount of installed variable renewable generation ramps up. New

Understanding the threat posed to industrial control systems (ICSs) by malware is difficult. It requires knowledge of proper ICS functionality in order to identify illegitimate software. One industrial

Power plants are complex systems with countless moving parts, and in turn, countless opportunities for things to go wrong. With the advent of 3-D printing technology, repairing or replacing those moving parts

A flood of renewable capacity in the European Union is forcing member countries to consider grid upgrades that offer a more substantial power supply management role to distribution system operators. Lee

Varnish buildup in oil systems and components can degrade performance and cause erratic valve operation. Some experts have conducted research and formulated new lubricants that could help solve those problems. One such oil proved highly successful during a five-year run at a gas turbine power plant. By eliminating the need for oil changes and valve […]

What it means to have a secure energy generating facility has changed in recent years as the threat of cyberattacks grows. As the nation’s energy sector becomes increasingly interconnected, it is more

Technology advancements and new regulatory requirements could reshape how power plant owners operate and maintain large power transformers. Experts outline emerging strategies and call attention to overlooked

New technology is being used throughout the power industry to improve plant efficiency, predict trouble with degrading equipment, forecast weather trends, and train workers. A recent conference hosted by POWER

Continuous condition-based monitoring of electrical conductors and insulation is an effective way to reduce required plant maintenance activities, cut operating costs, and prevent unplanned shutdowns

Cyclic operating conditions can be problematic for many coal-fired power plants that were designed to run as baseload units. Implementing a combustion and boiler performance management program can help ensure

Small hydro is becoming big business as ongoing technological advances make more small sites economic to exploit. Older plants can also see substantial output and efficiency gains by upgrading from decades-old

The U.S. should capitalize on China’s formidable experience to put its own domestic solar power sector on a more “economically sensible” path, researchers from Stanford University said in a new report. The March 21–released report, “The New Solar System,” which was funded by a research grant from the U.S. Department of Energy (DOE), offers a […]

Crippled by financial setbacks stemming from the half-built AP1000 reactor projects in Georgia and South Carolina, Westinghouse Electric Co., a company with a storied legacy symbolic of American nuclear power, has taken the desperate step of filing for bankruptcy protection. While owners of the two nuclear construction projects are monitoring the situation, the development could […]

Siemens has installed the prototype of its towering 8-MW offshore direct-drive wind turbine at a national test center in Østerild, Denmark, marking the company’s foray into the global race to develop mega–wind turbines. The new offshore turbine was installed on a steel tower at a hub height of 120 meters (m) in late January (Figure […]

Construction of four AP1000 units—the first new nuclear reactors in the U.S. in decades—is moving along at Vogtle 3 and 4 in Georgia and at the V.C. Summer nuclear power plant in South Carolina. In January, Westinghouse, which is spearheading construction of the units, marked a key milestone as it placed the first steam generator […]

Stricken by falling prices, producers of liquefied natural gas (LNG) are looking to exploit an emerging trend that integrates the fuel source with power generation. According to Houston-based international law firm Baker Botts, an increasing number of LNG power projects are emerging worldwide as a “new, viable medium” that offers a rapid but long-term power […]