POWER

When the decision is made to retire a power plant, the work of getting there is just beginning. Maintaining safe and reliable generation requires strong leadership, clear communications, and heightened attention to operations and maintenance, staff morale, and post-shutdown plans.   For utilities and other generators facing the challenge of winding down operations at an […]

Estimates vary widely, but even the Environmental Protection Agency acknowledges that lowering the ozone standard will cost billions. How will it affect power companies? It could make approval of new projects much more difficult. Even in the annals of expensive environmental regulations and the hyperbole that often accompanies them, the numbers are eye-popping: $140 billion […]

Minimizing the impact of electrical fires in power plants requires a combination of prevention, compartmentalization, detection, and suppression strategies. But first, everyone in a plant needs to understand the hazard. Fires at electric generating stations are rare—but not as rare as one might think. Loss history at hydroelectric facilities, for example, shows that fires involving […]

Everyone loves efficiencies. Combining generation technologies can create a plant that’s more than the sum of its parts, but engineering challenges mean these projects are not for the faint of heart. When you think of “hybrids” these days, your first thought is probably of automobiles. But hybrids—hybrid power plants, that is—are starting to emerge in […]

In South Korea, the second unit at Korea Hydro and Nuclear Power’s (KHNP’s) Shin-Wolsong reactor (Figure 3) was finally connected to the grid in late February. 3. Finally connected. Korea Hydro and Nuclear Power’s Shin-Wolsong 2 was grid-connected in late February, nearly two years after it was completed. Courtesy: KHNP Though the reactor was completed […]

Stacking perovskites, a crystalline material, onto a conventional silicon solar cell may dramatically improve the overall efficiency of the cell, scientists from Stanford University concluded in a new study. “Right now, silicon solar cells dominate the world market, but the power conversion efficiency of silicon photovoltaics has been stuck at 25% for 15 years,” explained […]

Since the beginning of the U.S. commercial reactor industry, regulatory agencies have required that nuclear power plant designs take into account the potential threats posed by natural hazards such as earthquakes and floods. The tsunami-caused disaster in Japan in 2011 prompted renewed attention worldwide on these hazards. Given the devastation caused at Japan’s Fukushima Daiichi […]

Though offshore wind is becoming increasingly important in Europe, with many hundreds-of-megawatts projects in service, the sector has stagnated in the U.S., with no operational facilities—and some

Reliability of the bulk power system may not be as sexy as news of “got-rich-quick” energy traders and alleged insidious market manipulation. But for those on the ground balancing the practicalities of ensuring electricity arrives when and where it is needed with a carousal of mandatory regulations, it can be every bit as interesting. Cue […]

Argentina’s Ministry of Federal Planning in early February signed an agreement with the National Energy Administration of China and China National Nuclear Co. (CNNC) to build Argentina’s fourth nuclear reactor, an 800-MW CANDU design, on the site of the existing Atucha nuclear power plant. Under the agreement, Nucleoeléctrica Argentina—holder of the rights to Canadian CANDU […]

Renewable energy is on the rise, and the Export-Import Bank of the United States (Ex-Im Bank) is playing its part to support American renewable exporters in the global marketplace. Global installed capacity of renewable electricity over the last 10 years has increased by over 100%, to 1,560 GW, and now accounts for 23% of all […]

$1.9B Pan-African Renewable Energy Platform Launched. Renewables company Mainstream Renewable Power and private equity firm Actis on Feb. 17 launched a pan-African renewable energy platform dubbed Lekela Power, with ambitions to provide between 700 MW and 900 MW of wind and solar power across Africa by 2018. Mainstream will take responsibility for the full end-to-end […]

What turns a trend from trendy to established? In the energy industry it can be any number of things, from a technology breakthrough, to a new market, to forces of nature. The shale gas boom in the U.S. is the most well-known example of a technology trend that has changed the economics for all power […]

The Palo Verde Nuclear Generating Station led the U.S. in electrical generation in 2014, as it has done for 23 consecutive years, with a total output of 32.3 million MWh. That bested its previous record set in 2012. The Palo Verde plant is located about 45 miles west of Phoenix, Ariz. (Figure 5). It has […]

TIC to Build First U.S. J-series GT Plant. The Industrial Co. (TIC), a wholly owned subsidiary of Kiewit Corp. ,was recently awarded an engineering, procurement, and construction contract to build a gas

A facility’s steam turbine ranks at, or at least near, the top of the list of vital power plant equipment. Without it, the thermal energy in pressurized steam can not be converted to rotary motion, which is

If ever there were a case of winning all the battles and losing the war, it would be the saga of the long-delayed-and-now-probably-dead Cape Wind offshore wind project in Massachusetts. As I wrote last year

Water is the lifeblood of a thermal power plant. As such, obtaining clean and pure makeup water and dealing with wastewater has been a requirement since the first steam generating unit went into operation. As

Worldwide, the U.S. is the largest producer of geothermal power; however, geothermal energy provides less than 0.5% of total generation in the U.S. Given geothermal’s small piece of the U.S. electricity pie

Alloys found in the condensate and feedwater systems of power plants include carbon steel for piping, pumps, and in some cases heat exchangers. Many systems still have some copper-based alloys from admiralty

With the final Clean Power Plan rule covering existing power plants scheduled for release this summer, and the amount of flexibility that has been afforded to the states to meet emissions targets, states have

Researchers at Oregon State University (OSU) have developed a method to manufacture nanoporous graphene for use in supercapacitors from atmospheric carbon dioxide (CO2). Graphene is a form of carbon that is

Originally, the modern combined cycle gas turbine (CCGT) unit was developed to act as a largely baseload source of generation due to its high thermal efficiency and low initial capital cost. But as markets

The U.S. Department of Energy (DOE) has awarded a $2.5 million contract to Finnish environmental and industrial data firm Vaisala to coordinate a study of methods to improve wind energy forecasting in complex

The Lodi Energy Center (LEC) is a 296-MW 1 x 1 combined cycle plant in Lodi, Calif., just north of Stockton and east of the San Joaquin River delta (Figure 1). From the outside, there’s little to distinguish

After decades of potential but limited deployment, fuel cells are beginning to carve out a role in grid-scale generation (see “59-MW Fuel Cell Park Opening Heralds Robust Global Technology Future” in the

Selective catalytic reduction (SCR) systems installed in steam generators for NOx reduction are ordinarily designed for full boiler load conditions, when SCR inlet temperatures normally exceed unit-specific

Sometimes, circumstances have a way of developing in such an unexpectedly serendipitous way that they practically force one to take notice. So it is with Cuba and its power sector. Coincidence It all started

Geothermal resources have important strategic value for New Zealand, as they are able to directly supply both heat and electricity (see “New Zealand Geothermal Industry Is Poised for the Future” in this

Methane emissions are garnering increasing attention because of their potential impact on the climate. Though far less methane is released to the atmosphere than carbon dioxide, methane has 20 to 25 times the