Archive: Coal

North Anna Generating Station, Dominion. Source: Commons

More Gas, Renewables in Dominion’s Future

Dominion Energy plans to build eight new natural gas-fired power plants and speed the pace of its renewable energy efforts, according to the utility’s integrated resource plan (IRP) filed with Virginia regulators on May 1. The company also said its future plans focus on regulations on carbon emissions in part because Virginia is considering joining the […]

Fig 3_PJM control room

PJM Says Grid Reliable, but Will Analyze Resilience

The operator of the nation’s largest electrical grid on April 30 reiterated its system will remain reliable even with the retirements of substantial generation resources. But PJM Interconnection, whose system covers customers in 13 states, said it will conduct a review of its operations over the next several months “to understand the fuel-supply risks in […]

Transmission lines distribute power from Encina Power Plant to the regional electric utility grid supplying power to San Diego, Los Angeles and beyond, to Arizona and Las Vegas. (Photo: Chris Hunkeler/Flickr)

Power Mix Comes Down to Cost

It’s not a secret that the North American power mix is changing. Renewable energy and natural gas are picking up market share while coal-fired generation shrinks and nuclear power remains stagnant at best

Figure 2_LunenCoalPlant_Germany_STEAG

German Giants Swap Assets and Reshape Energy Sector

Germany’s electricity sector faced a renewed, violent shakeup in March as two of its biggest utilities, E.ON and RWE, announced a complex asset exchange that experts said points to the death of the

Splash_Wastewater_low

Upheaval and Innovation in Wastewater Management

Regulatory uncertainty, changing resources, and an industrywide drive to cut costs and boost flexibility and efficiency are among a growing list of challenges that are prompting new approaches to treat power

Egyptian Ethylene and Derivatives Co. (ETHYDCO) was determined to implement a process for water recycling and reuse, enabling water to reach ZLD by applying the most modern technology to meet compliance.

Bringing New Life to Industrial Wastewater

As water demand soars in every corner of the world amid widespread drought and water scarcity concerns, recovery and recycling of wastewater is increasingly becoming a valuable solution to alleviate pressures

Figure 1 - Ash Hopper

Putting a HALT to Hazardous Hopper Maintenance

Those responsible for the operation or maintenance of thermal plant boilers know there is nothing trivial about hopper ash buildup. At a minimum, plugging can lead to decreased output, unscheduled maintenance

December 2000—Milledgeville, Ga.: About 35,000 gallons of wastewater laden with coal ash is released from Georgia Power’s Plant Branch into Lake Sinclair when a mechanical failure of an isolation valve causes water from an ash pond to be siphoned back and discharged through the cooling water tunnel system into the lake. Plant Branch has since been retired to meet environmental rules, though the EPA continues to scrutinize three of its five coal ash ponds, which have received a significant or high hazard rating. Courtesy: Lake Sinclair Blog

EPA Rampaging on Coal Ash Rule Despite Groundwater Concerns

Despite pleas by environmental groups for more time to review recent dumps of groundwater monitoring data from power companies, the Environmental Protection Agency (EPA) is forging ahead to finalize a proposed overhaul of the Obama administration’s 2015 final Coal Combustion Residuals (CCR) rule. The EPA’s 45-day comment period for the agency’s March 1 proposed rule, […]

Kashiwazaki-Kariwa Nuclear Power Station, ABWR. (Kashiwazaki-Kariwa, Japan)
 
Photo Credit: Tokyo Electric Power Co., TEPCO

Japanese JV Will Invest $935M in U.S. Power Projects

A joint venture of two Japanese energy companies reportedly plans to invest $935 million on U.S. power generation projects. Tokyo Electric Power Co. (TEPCO) and Chubu Electric Power, through their JERA joint venture, would make the investment by 2030, according to Asian news reports. AsiaElec reported that JERA currently has about 3,000 MW of generation in […]