Displaying items by tag: clinch river

The Tennessee Valley Authority’s Bob Deacy shows U.S. Department of Energy secretary Jennifer Granholm the site of a future nuclear reactor in Oak Ridge.  Ben Pounds/Tennessee Lookout

DOE chief: Little nuke plants posited to provide clean energy 

This story was originally published by Tennessee Lookout.

OAK RIDGE — U.S. Department of Energy Secretary Jennifer Granholm visited the site of a possible first-of-its-kind nuclear reactor for the Tennessee Valley Authority this week. 

The utility’s board authorized $200 million to explore building a reactor on the site last year after the Nuclear Regulatory Commission gave TVA an early site permit in 2019. 

This first-of-its-kind small modular reactor would be smaller than standard nuclear reactors and generate less power, but it could have other advantages. While typical nuclear power plants need to provide power at 100 percent of their capacity constantly, a small modular reactor can more easily increase or decrease the amount of power it provides to the overall grid. Melinda Hunter, TVA nuclear communication specialist explained that this flexibility can complement renewable plants elsewhere in the TVA grid.

“When the sun’s not shining, you can bring the power up,” she said, adding that during sunnier periods the small modular reactors can provide less power.

TVA CEO Jeff Lyash said the utility will likely start building its first reactor on the site in 2027 and finish by the early 2030s. TVA is looking to build four of these reactors on the site, but it’s not made a final decision on the first one yet. Each reactor would generate 300 megawatts. 

Potential water runoff issues stall future Oak Ridge landfill construction

OAK RIDGE — A landfill intended to hold potentially toxic debris from the demolition of legacy Oak Ridge research facilities is moving forward but construction won’t start until it is definitively determined whether the site could pollute ground and surface water.

As reported previously by Hellbenderpress, environmentalists fear toxins leaking out of the proposed landfill could contaminate waterways and make their way into fish that people might catch downstream. The landfill’s contractor, however, said leaving buildings full of toxic residue standing may be more dangerous for workers and nearby residents and the landfill will help get the buildings quickly demolished. The contractor is doing a mock-up study this year to see how best to handle water issues on the future landfill site.

This summer, the contractor United Cleanup Oak Ridge LLC will choose a subcontractor and do field work. Ben Williams, the Department of Energy’s public affairs specialist, said roads and utilities will need to move to get the site ready at that time. But UCOR stated it won’t build the landfill until after a water study spanning “two wet seasons,” beginning later this year. 

Bull Run Fossil Plant in Claxton, Tennessee, was originally commissioned 55 years ago but TVA is now soliciting public input on the best way to shut down operations. Tennessee Valley Authority

TVA solicits public input following release of environmental assessment for Bull Run Fossil Plant decommission

CLAXTON — Tennessee Valley Authority plans to close its Bull Run Fossil Plant (BRF) in Anderson County, but it’s still looking for public input on what comes next.

“As a large, inflexible coal unit with medium operating costs and a high forced outage rate, BRF does not fit current and likely future portfolio needs,” the federal utility said in a draft Environmental Assessment.

TVA is looking at three different options for the future of the structures still standing on the site by the Clinch River near Oak Ridge: taking down all structures; taking down some of them; or leaving everything standing. A recent report lays out the environmental consequences of each of these actions. The report, in draft form, is against that third choice, listing it as only an option for the sake of comparison.

“If the facility is left in the “as-is” condition, it likely would present a higher risk than Alternatives A or B for the potential to contaminate soil and groundwater as systems and structures degrade. As such, this alternative is not a reasonable alternative,” the draft states.

TVA stated its considering removing “all or most of the buildings and structures” on a 250-acre area. After closing the plant, but before any demolitions, TVA will begin by removing components that may be used at other TVA sites, draining of oil and fluids from equipment, taking ash out of the boilers, removing information technology assets, removing plant records and other tasks.

The Bull Run Environmental Assessment is 170 pages long and available for public review. It doesn’t directly tackle the coal ash storage conundrum that has grabbed the attention of politicians, nearby residents and environmental activists, because that issue involves separate regulations. 

Image from a 2018 memorandum authored by experts including former Department of Energy employees in Oak Ridge. EMWMF is the present landfill that has a history of failures and is reaching capacity. Ecologists say, after a decade DOE still is not adequately addressing waste acceptance criteria and feasible alternatives.

Public can comment in person Tuesday night in Oak Ridge on proposed DOE waste dump

OAK RIDGE — The Southern Environmental Law Center blistered the Department of Energy in a letter ahead of a May 17 hearing on construction of a toxic-waste landfill that opponents said poses contamination threats to portions of the Clinch River watershed and downstream TVA reservoirs.

The hearing is set for 6-8 p.m. Tuesday, May 17 at the Pollard Technology Conference Center, 210 Badger Ave. This email address is being protected from spambots. You need JavaScript enabled to view it. will be accepted through June 7.

The Department of Energy wants to bury contaminated debris from demolition of Manhattan Project-era complexes and associated legacy toxins from the Oak Ridge Reservation. The drawn-out debate about how best to safely store the materials now focuses on the transparency of the decision process and the health of the Bear Creek watershed and downstream pollution threats to the Clinch River.