Water

A severe water crisis gripping India this year has forced several of the country’s hydroelectric and thermal power plants to shut down. At least 10 of India’s 29 states have been stricken by severe drought after the monsoons failed for two seasons in a row (as of the start of July, the monsoons had still […]

When commissioning a new power plant, requirements for purified water can be large—often more than an unfinished plant can supply. When it’s time to bring in outside help, proper planning can help avoid problems and keep budgets under control. With all the complexity inherent in the commissioning of a power plant, the last thing anyone […]

Droughts attributed to the El Niño phenomenon have gripped Venezuela’s neighbor Colombia. Bogotá in April prepared to ration power and instituted mandatory reductions in consumption, warning that

Oil-rich Venezuela is gripped by a power crisis so debilitating that the government has instituted four-hour daily blackouts across most of the country, forced hotels and malls to generate their own power, and

Hands down, 2015 was a record year for global investment in renewable energy. Excluding large hydroelectric projects, the amount of money committed to renewables rose 5%, to $285.9 billion, exceeding the previous record of $278.5 billion reached in 2011.

Keeping a power plant’s surface condenser in proper working order requires paying attention to balance-of-plant systems as well. Failure to monitor and maintain cooling towers and vacuum pumps in particular can lead to performance penalties or worse. The surface condenser at a power plant has a significant effect on power generation—specifically, the efficiency with which […]

By an 85-12 vote, the U.S. Senate passed the first comprehensive energy bill in nearly a decade, bringing a successful conclusion to months of legislative effort and overcoming a series of roadblocks in the full Senate related to the water quality crisis in Flint, Mich. The product of more than a year of bipartisan work […]

Subcommittees of the U.S House of Representatives and the U.S. Senate separately advanced appropriations bills that lay out funding priorities for the Department of Energy (DOE) and other energy-related measures for 2017. The House Energy and Water Subcommittee, a panel of the Appropriations Committee, passed a $37.4 billion bill to fund the DOE as well […]

Entergy Tests Fiber Optic Cables to Slash Copper Use A unique pilot under way at a substation in New Orleans, La., uses fiber optic cables in a way that could help utilities reduce the use of copper wire. But

Two environmental groups on March 22 filed a notice of intent to sue Florida Power & Light (FPL) in federal court over leaks from the utility’s Turkey Point Nuclear Plant south of Miami that have raised concerns about contamination of area drinking water. The problems began several years ago, after FPL completed an uprate at Turkey […]

It’s been five years since the Great Tohoku Earthquake and tsunami prompted a crisis at the Fukushima Daiichi nuclear plant in Japan, but the world’s nuclear power sector is still lurching from its aftershocks. The Crisis at Daiichi Endures Five years ago, nearly a day after the 3-minute, 9.0-magnitude Great Tohoku Earthquake struck northeastern Japan—and unleashed […]

Construction of a 50-MWt plant that will demonstrate a novel oxyfuel natural gas power system using Allam Cycle technology with zero atmospheric emissions has kicked off in La Porte, Texas. The demonstration plant is being built by the technology’s developer, Durham, N.C.–based NET Power, along with Exelon Generation, CB&I, and 8 Rivers Capital. NET Power’s […]

There may be multiple closed-loop cooling systems at your power plant. Chances are good that they cool or control temperature on some very critical components. The two that are most likely to exist are the

In a growing number of regions, power plants are competing with many other users for scarce freshwater supplies, and the situation is likely to get worse. The International Energy Agency (IEA) recently

At the ballyhooed Paris climate conference last December, a little-noticed event occurred that could lead to important developments for electric generators. At the Paris meeting, some 80

In late 2015, the U.S. Environmental Protection Agency (EPA) published new regulations governing wastewater discharge from steam electric power plants. These new regulations, or effluent limitation guidelines

Plans to build a pumped-storage hydroelectric plant in the world’s driest region won the approval of environmental regulators in Chile this December. The unique 300-MW project proposed by Valhalla Energia

When we undertook an initiative at Granite Ridge Energy (GRE) to identify, prioritize, and assess components that were due for their 10-year assessments, we didn’t know quite what we were taking on or how to

Congressional efforts to block the Environmental Protection Agency’s (EPA’s) contentious rule asserting federal authority over small bodies of water were derailed on Jan. 21. Senate Republicans voted 52–40, failing to override the president’s veto of the so-called “Clean Water Rule”—also “Waters of the United States” (or WOTUS) well short of the 60 necessary votes. Clean […]

From issuance of the final Clean Power Plan to mammoth mergers, 2015 will be remembered as a tumultuous year. Twelve months ago, as folks were emerging from an eventful 2014, POWER made some bold predictions, including that fuel economics will drive 2015 U.S. power markets, and the labor crunch will complicate the gas turbine arms […]

From space, the 12.7-kilometer (km) Sihwa Lake tidal barrage that houses a 400-meter (m)-long tidal power plant looks like a delicate strand stretched across one of many bays and inlets characterizing the

The first effluent limitation guidelines update since 1982 is game-changing for many U.S. power plants.

In water-stressed regions outside the U.S., power producers and other industrial water users are incorporating higher levels of water reuse, some to the point of zero liquid discharge (ZLD), due to heightened

The Environmental Protection Agency (EPA) has finalized revisions to technology-based effluent limitations guidelines and standards, setting the first federal limits on the levels of toxic metals in wastewater discharges from steam electric power plants.  The new rule sets stringent new requirements for the discharge of arsenic, mercury, selenium, and nitrogen in wastewater streams from flue […]

There is a synergistic relationship among the three major cooling water treatment issues: corrosion, scale or deposit formation, and microbiological fouling. In order to control one, you need to control all

A federal judge on Thursday halted implementation of the Clean Water Rule that is controversial for its broad definition of “Waters of the U.S.” one day before it was to go into effect, saying it was likely that the Environmental Protection Agency (EPA) overstepped its authority when it promulgated the “exceptionally expansive” rule.  Judge Ralph […]

Dr. Ozgur Sahin, an associate professor of biological sciences and physics at Columbia University, who has helped develop a floating, piston-driven engine that generates power, most succinctly describes the

It’s not often that a power plant upgrade improves both the environment and the bottom line. Needing to come up with a new source of cooling water for Polk Power Station, and faced with mostly expensive, environmentally questionable options, Tampa Electric came up with a solution that both secured the plant’s water supply for the […]

Broad, bipartisan energy legislation that would allocate federal funding to grid technology research and demonstration along with a number of other initiatives, including cybersecurity and the energy-water nexus, has cleared the Senate Energy and Natural Resources Committee with an 18–4 vote.  The committee’s chair, Sen. Lisa Murkowski (R-Alaska), and Ranking Member Sen. Maria Cantwell (D-Wash.) […]