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  • Prevailing winds: Trends in U.S. wind energy

    Wind power is becoming a mainstream energy source that U.S. utilities are tapping into nationwide as a means of adding clean, domestically sourced energy to balance their generating portfolios. To identify where wind will take us,POWER’s senior editor talked to experts from diverse industry stakeholders about current and future developments.

  • Advanced batteries supply ancillary services

    For the power engineer, delivering an instantaneous and consistent power supply can be an elusive goal. Yet without it, grid frequency regulation is impossible. Today, frequency regulation is an ancillary service bought by the hour, the day prior to utilization, and dispensed on an as-needed basis by dispatch communiqués and provided by the ancillary service […]

  • The return of the Clipper Liberty wind turbine

    The Steel Winds project in Lackawanna, New York, was selected as a POWER 2007 Top Plant because of its unusual location (a former steel mill and Superfund site) and because it was the first commercial deployment of the Clipper Windpower 2.5-MW turbine. That report was written just as the project entered commercial service but before a major gearbox problem was identified. For many new designs, it isn’t a question of if problems will occur but of how the manufacturer responds when problems inevitably do occur. For its handling of Liberty’s problem, Clipper Windpower gets an "A."

  • Map of wind power plants in North America

    Courtesy: Platts Data source: Platts Energy Advantage and POWERmap. All rights reserved.

  • Transforming transmission is key to power industry’s future

    Call it the "trillion dollar conundrum." Really big money is needed to equip the U.S. transmission system to handle a variety of new requirements and increased load, but it isn’t clear how to raise it, spend it, or recover it. Expect new renewables projects to die on the vine until the gridlock loosens.

  • Polysulfone flowmeters

    A new line of injection-molded flowmeters from Dakota Instruments, Polysulfone Meters, meet the performance demands of a wide variety of industry-specific applications, including air-sampling equipment, water treatment and distribution systems, photo processing equipment, aquaculture, and desalinization equipment. The easy-to-install flowmeters are manufactured of polysulfone, a heat-resistant thermoplastic material for good chemical resistance. Flow indications provide […]

  • Tough analog panel meter

    Yokogawa Corp. of America introduced the ToughMeter series 270, a series of analog panel meters designed to operate in harsh environments. The 2½-inch and 3½-inch ToughMeter features an accuracy of 2% DC and 3% AC. Both have metal cases and polycarbonate windows, gasket-sealed bezels, terminals, and zero regulators to ensure protection from dust and moisture. […]

  • Corrosion-resistant flowmeter

    McCrometer’s new Corrosion-Resistant V-Cone Flow Meter has been engineered to provide precise flow measurement in liquid, steam, or gas media, while requiring virtually no maintenance in the most demanding processes where corrosive conditions exist. The design of the flowmeter is based on advanced differential pressure (DP) technology and requires no moving parts. Built-in flow conditioning […]

  • Commentary: Renewable energy lessons from Europe

    Europe has seen tremendous activity in the development of renewable energy as a response to climate change. As a result, some of the most important renewable energy firms operating in the U.S. are based in Denmark, Germany, and Spain. Stable, high-level policy is one reason Europe dominates this sector.

  • Multi-channel particulate monitor

    FilterSense’s new multi-channel particulate monitor, Model PM 100, is suited for monitoring multi-compartment fabric filter baghouses, multi-chamber cartridge dust collectors, multi-clone cyclones, and clusters of bin vents. For large fabric filters in coal-burning power plants, FilterSense claims the multi-channel systems have proven to be vastly superior to an opacity monitor in the stack. The system […]