Environmental

Uncertainty about CO₂ emissions legislation is prompting power plant owners to consider the possibility of accommodating "add-on" CO₂ capture and sequestration solutions for coal-fired plants in the future. Those same plant owners may be overlooking the possibility that future natural gas – fired combined cycles will also be subject to CO₂ capture requirements. This month we examine the capture options. In a future issue, Part II will present the installation and operating costs of different carbon capture technologies.

Carbon capture and storage (CCS) has of late gained steam as the best way to mitigate emissions of the greenhouse gas carbon dioxide (CO2) from fossil fuel power plants, despite evidence that the approach would require much energy and increase the fuel needs of a coal-fired plant by more than 25%. A new study from […]

The stage is being set for negotiating a successor agreement to the Kyoto Protocol. The U.S. is trying to exert some leadership in the international climate change debate by attempting to build consensus for binding carbon emission reductions prior to the upcoming Copenhagen meeting. Meanwhile, carbon legislation is, thankfully, stalled in the Senate, and developing countries are rejecting our entreaties. You can’t win if other countries don’t want to play.

The Edward W. Clark Generating Station, which has supplied electricity to the Las Vegas Strip for more than half a century, has learned the secret of life in the desert: adaptability. The plant’s early years featured conventional steam plants operated around the clock. By mid-life, Clark had been upgraded with two combustion turbine combined-cycle power blocks operated as intermediate-load resource. Today, the old steam plants have been replaced with fast-start peaking gas turbines.

The New Source Review (NSR) permitting program was originally created as part of the 1977 Clean Air Act Amendments to ensure that new power generation facilities were properly outfitted with all the necessary air quality control systems when constructed. Plants in operation were exempt until they made plant modifications viewed as beyond “routine maintenance,” a term whose definition has been a moving target. Is it time for the NSR to take a back seat to improved plant efficiency and reduced carbon emissions?

The EPA has identified 44 "high hazard" coal ash ponds around the U.S., and a recent Tennessee Valley Authority report indicates that the agency should have known its Kingston Plant pond would have been one of them.

An analysis by the Center on Budget and Policy Priorities concluded that two-thirds of the value of carbon emission allowances described by the recent H.R. 2545 will benefit utility business customers and households in the top quartile of personal income. The middle quintile will see increased cost for electricity.

MIT researchers push for faster commercialization of carbon capture technologies for coal-fired power plants by reducing system costs.

While many CO₂ removal technologies are being researched through laboratory and pilot-scale testing, an existing technology has a significant operating history at commercial-scale facilities, where it is collecting CO₂ from multiple sources, including low-CO₂ concentration flue gas (<3.1% by volume) with high oxygen concentrations (>13% by volume).

How would you like to be able to access data on all the power plants in the world and all of their performance metrics, analyze that data, and map it? Those abilities are part of the vision behind the Global Energy Observatory (GEO), an OpenModel website that serves as a wiki for global energy data.