[VIDEO] POWER Insights: Developing Reliable, and Efficient, Energy Solutions

August 7, 2020
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The post [VIDEO] POWER Insights: Developing Reliable, and Efficient, Energy Solutions appeared first on POWER Magazine.

Ameresco has a 20-year history of providing energy efficiency and renewable energy solutions for its customers across North America and the UK. The company works on upgrades of facility infrastructure, and develops, builds, and operates renewable energy plants.

The company also works with customers on tailored financial solutions to bring projects to fruition. Ameresco’s business engages with clients on both sides of the meter, with an eye toward reducing operating expenses, upgrading and maintaining facilities, stabilizing energy costs, and increasing energy reliability.

Ameresco was founded in 2000 by George Sakellaris, a pioneer in the energy service business. Much of the company’s recent work centers around microgrids, as Ameresco works to provide more reliable and resilient power both in support of the grid, and for installations off the grid. Among its projects is a comprehensive energy solution for the U.S. Marine Corps Recruit Depot at Parris Island in South Carolina (Figure 1), and a microgrid at the Portsmouth Naval Shipyard in Maine.…

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EIA Details Impact of Coal-to-Gas Switching

August 5, 2020
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The post EIA Details Impact of Coal-to-Gas Switching appeared first on POWER Magazine.

U.S. utilities have made a significant move away from coal-fired power generation in the past decade, evidenced by a continuing stream of announced coal plant retirements.

That transition has been partly driven by new generation from renewable resources, such as wind and solar power. New data from the Energy Information Administration (EIA) released August 5, though, shows that a large part of that transition came as generators repurposed those coal plants to run on natural gas, or built new gas-fired plants to replace electricity generated by burning coal.

The EIA on Wednesday said 121 U.S. coal-fired power plants were repurposed to burn other fuels between 2011 and 2019. The agency said 85% of those plants were converted to gas, or replaced by natural gas-fired plants. This coal-to-gas switching was driven not only by more stringent emissions regulations, but also by consistently lower prices for natural gas.

Most of the coal-fired generation capacity lost during the past decade came from coal plant retirements, but several power plants were converted to burn natural gas.
…

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Xuzhou 3 Shows the Future of Subcritical Coal Power Is Sublime

August 3, 2020
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The post Xuzhou 3 Shows the Future of Subcritical Coal Power Is Sublime appeared first on POWER Magazine.

A remarkable retrofit at Xuzhou Unit 3 boosted the 320-MW subcritical coal unit’s efficiency to beyond 43.56%—higher than all existing Chinese supercritical units, and even many ultrasupercritical units. The groundbreaking demonstration is a POWER 2020 Top Plant award winner because it offers crucial hope and new purpose for subcritical units around the world.

In April 2017, engineers from Shanghai Shenergy Power Technology sat together contemplating how they would execute a formidable task. Owing partly to their success at boosting the annual average net efficiency at Shanghai Waigaoqiao 3, an ultrasupercritical (USC) unit (and a 2015 POWER Top Plant), to a world-class 44.5%, Hong Kong–based power generation giant China Resources Power had invited the technology arm of Shanghai government–owned Shenergy Group to conduct a high-temperature retrofit at one of four units at the 1.2-GW Xuzhou China Resources Power Plant in Jiangsu province.…

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Assembly Phase Underway for ITER Nuclear Project

July 28, 2020
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The post Assembly Phase Underway for ITER Nuclear Project appeared first on POWER Magazine.

Officials with the ITER project in France said work has started on the assembly of giant components needed for construction of an experimental nuclear fusion reactor, a project designed to demonstrate the scientific and technological feasibility of fusion energy for peaceful use.

The ITER group, in a ceremony July 28 that was broadcast online (see video below), marked the start of the machine assembly of the international experimental tokamak nuclear fusion reactor. Countries involved in the project include the United States, Russia, China, India, Japan, South Korea, and member states of the European Union, with a total of 35 countries participating. The project (Figure 1), being built in Cadarache, France, is expected to start up in 2035.

The project has had large budget overruns, as well as several delays as the partner countries have tried to coordinate financing and cooperation on technical issues. The exact price tag is not known, as participating countries have not divulged their commitments, but Bernard Bigot, the project’s director, on Tuesday said the estimated budget for the European Union is about 20 billion euros ($ 23.5 billion).…

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