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Owner/operator: Ethiopian Electric Power Corp. Building the 1,870-MW Gibe III hydroelectric project required unprecedented solutions that took into account the remoteness of the site, the narrow gorge where the dam is located, the height of the dam, and challenges in sourcing reliable materials. Split almost diagonally by the East African Rift System, Ethiopia is a […]

Owner/operator: Solid Waste Authority of Palm Beach County/Babcock & Wilcox Co. Although waste-to-energy (WTE) technology is well proven, the relatively low cost of landfilling garbage in the U.S. has foiled new power plant construction for many years. However, a facility in Florida—the first greenfield WTE project the U.S. has seen in 20 years—shows it’s still […]

Owner/operator: Akca Enerji Geothermal energy has long been handicapped by its need for high-temperature resources to generate economic power, but innovations in binary Organic Rankine Cycle systems are making it possible to exploit low-temperature sites. An innovative plant in Turkey using Italian technology has taken things a step further with a unique two-pressure, multistage, single-disk […]

Owner/operator: Korea South East Power Co., Ltd. Few people would view a large coal plant as a place to generate renewable energy. But a Korean utility took a chance on an innovative approach, harnessing the latent energy of the plant’s cooling effluent to drive a trio of hydroelectric plants, and in so doing, created a […]

Many coal power stations have recently been operating at historically low capacity factors or have even undergone extended economic shutdowns. This can result in coal stockpiles that are exposed to the elements for much longer times than anticipated, resulting in a loss of usable coal energy by several mechanisms. This article explores the severity of […]

Pneumatic furnace damper drives may be more common, but electro-hydraulic actuators provide several advantages to the more traditional control scheme. One fossil-fired plant in Taiwan achieved more consistent and accurate furnace draft pressure control by retrofitting its dampers with Electraulic actuators, optimizing combustion and increasing boiler availability in the process. Fossil fuel–fired power plants worldwide […]

The ocean power sector is still in its early stages of development, shackled by high development and operational costs. Trends emerging over the past two years hint at which technologies could dominate the sector’s future. Despite decades of research and development that have yielded several innovative ways of using oceans to fuel power generation, the […]

As energy storage becomes more ubiquitous and projects grow in size and capacity, utilities of all types are exploring the best ways of putting it to use across the grid. The opportunities are large, but so are the challenges, according to a panel of executives who spoke at Energy Storage North America in October. New […]

The first nuclear reactor vessel at the Plant Vogtle expansion near Augusta, Ga., has been placed inside Unit 3, marking another major milestone for the much-watched project. Construction contractors Westinghouse and Fluor Corp. lifted the 306-ton reactor vessel into its permanent location inside the AP1000 unit’s nuclear island on November 23. The vessel, fabricated by […]

A mammoth, wide-ranging energy measure under consideration by the Illinois legislature that would provide billions of dollars in support for energy efficiency, microgrids, and—most controversially—the Clinton and Quad Cities nuclear power plants made it out of a key committee on Nov. 29 and could see a final vote by the end of the week. The Future […]