CHP

According to the International Energy Agency (IEA), global power production from combined-heat-and-power (CHP) technologies has stagnated since 2000, lagging far behind growth in conventional power technologies and commercial heat generation. Despite having an average efficiency of 59%, CHP’s share of global generation in 2013 stood at just 9% (Figure 1), the bulk of it at […]

Combined heat and power (CHP) has long been a popular option for industrial self-generation, but new technologies and business partnerships are taking the sector well beyond the traditional boilers and diesel gensets. The Erving Paper Mill in the western Massachusetts town of the same name has operated for more than 100 years. Once part of […]

A variety of approaches have been used to capture new benefits from combined heat and power (CHP) facilities. Some owners have transitioned to new fuels or added renewables to the mix, while others have implemented unique business models to spur development. As district heating systems are brought into the 21st century, the CHP sector seems […]

A wastewater treatment plant in the Danish city of Aarhus is reportedly producing enough power to cover all of the energy used for the whole water cycle in its catchment area—from water production and water

Valmet Oyj’s press release on September 7, 2016 at 10:00 a.m. EET Valmet and HOFOR Energiproduktion A/S have signed a contract regarding delivery of a biomass-fired boiler plant and related biofuel storage and conveyor systems to HOFOR’s Amagerværket heat and power plant in Copenhagen. The new power plant will supply electricity and heat for the […]

Fortum Värme, a company jointly owned by Finnish energy firm Fortum and the city of Stockholm on May 9 inaugurated a new biomass-fired combined heat and power (CHP) plant on the shores of Värtan, a strait in Sweden’s capital city. The Värtan CHP8 (130 MWe, 280 MWth), which began construction in 2013, will begin commercial […]

Although it’s not widely publicized, a majority of the energy used to generate electricity is wasted in the form of heat discharged to the environment. For better or worse, that’s just the way a typical thermal power plant works. Fuel, such as coal, biomass, natural gas, or uranium (in the case of nuclear plants), is […]

At least one person was injured when a boiler exploded at the Veolia Energy Schuylkill Station combined heat and power plant in Philadelphia on June 15. The 163-MW natural gas–fired plant provides steam for the city’s district heating system as well as power to the grid. According to media reports, the blast occurred around 3:15 […]

China has been struggling for years with endemic air pollution in major cities like Shanghai, and the nation’s traditional heavy reliance on coal has been challenged head-on by new government policies to cut emissions and reduce the carbon intensity of the power sector. While major advanced coal plants and China’s massive build-out of its nuclear […]

Combined heat and power (CHP) is hot again—in more ways than one. After a surge in capacity during the 1980s, kick-started by the 1978 federal Public Utility Regulatory Policies Act (PURPA) that was designed

Advances in firing biomass, including bagasse, in Cuban sugarcane operations.

One of the world’s largest biomass-fed organic rankine cycle (ORC) plants is getting ready to begin operations. Italian firm Turboden is preparing to put online an 8-MW power unit in Athens, Maine, that will

Courtesy: Colorado Energy Nations, GDF SUEZ Energy NA, and Behrent Engineering POWER’s 2015 Reinvention Award (formerly known as the Marmaduke Award) goes to an industrial cogeneration plant that reinvented its largest unit for greater fuel and operating flexibility. This project is exemplary for the owner’s foresight, maximizing local engineering resources, a stellar safety record, and […]

Copenhagen could inaugurate, as early as 2017, a new combined heat and power plant that features a roof-wide artificial ski slope open to the public and blasts smoke rings through a 124-meter chimney.  The $611 million Amager Bakke plant is owned by five Danish municipalities and is being built by the Copenhagen-based waste management company Amager […]

Transporting household and industrial waste as well as sewage sludge from a treatment plant to a power station can be a messy business. The utility company Linz AG found that a pipe conveyor system offered an optimal solution. The conveyor is not only highly energy efficient, but due to its closed design, it also allows […]

Great River Energy’s (GRE’s) Spiritwood Station began commercial operation on Nov. 1. The plant—located about 10 miles east of Jamestown, N.D.—is a combined-heat-and-power plant that can generate up to 99 MW of electricity, depending on the amount of steam being supplied to its partner facilities. The station is expected to be about 60% efficient while […]

Aside from places where microgrids have a track record—educational, industrial, and commercial campuses—commercial and community microgrids are still the domain of early adopters, but the number of people wanting to travel the trail they are blazing is increasing. A microgrid is any collection of interconnected loads and distributed energy resources within clearly defined electrical boundaries […]