EPA unveils SO2 scrubber-reliant haze plan for Texas

Texas-Flag

The U.S. Environmental Protection Agency is proposing new regional haze SO2 reduction requirements for Texas based on a series of presumed scrubber installations and scrubber upgrades on 14 coal-fired power plant units.

The EPA will publish a notice in the Dec. 16 Federal Register that proposes to approve some aspects of a state implementation plan (SIP) for Texas, and to disapprove other aspects. This covers the regional haze SIP that Texas submitted to EPA in March 2009 to meet the requirements of Section 308 of the Regional Haze Rule.

“We take very seriously a decision to propose disapproval of provisions in Texas' plan, as we believe that it is preferable that all emission control requirements needed to protect visibility be implemented through the Texas SIP,” EPA said. “However, in order to approve the state's plan, we must be able to find that the state's plan is consistent with the requirements of the CAA.”

EPA's proposed actions are summarized as: Best available retrofit technology (BART): It proposes to approve Texas' determination of which sources in the state are BART eligible. It also proposes to approve Texas' determination that none of the state's BART-eligible non-electricity generating units (EGUs) are subject to the BART requirements because they are not reasonably anticipated to cause or contribute to visibility impairment in any Class I areas. Reasonable Progress Goals: EPA proposes to disapprove Texas' reasonable progress coals (RPGs) for 2018 on the 20-percent least impaired and 20-percent most impaired days for the Big Bend and Guadalupe Mountains Class I areas. Calculations of Baseline and Natural Visibility Conditions: EPA proposes to approve Texas' calculation of baseline visibility conditions at the Big Bend and Guadalupe Mountains Class I areas. It proposes to disapprove Texas' calculation of natural visibility conditions at these Class I areas. Long-Term Strategy: EPA proposes to disapprove Texas' long-term strategy because it does not sufficiently address regional haze visibility impairment for all Class I areas impacted by Texas sources. It also proposes to find that the technical basis on which Texas relied to determine its apportionment of emission reduction obligations necessary for achieving reasonable progress in Wichita Mountains was inadequate. It also proposed to find that Texas did not adequately consider the emissions limitations and schedules for compliance needed to achieve reasonable progress in Big Bend, Guadalupe Mountains, or Wichita Mountains. Monitoring Strategy: EPA proposes to approve Texas' monitoring strategy.

To remedy these deficiencies, EPA proposes a federal implementation plan (FIP) for Texas that consists of a long-term strategy with SO2 emission limits for fifteen coal-fired EGUs that impact visibility in multiple Class I areas. It proposes that these SO2 emission limits met on a 30-boiler-operating-day rolling average:

Scrubber Upgrades Sandow Unit 4, 0.20 lbs/mmBtu of SO2 Martin Lake Unit 1, 0.12 Martin Lake Unit 2, 0.12 Martin Lake Unit 3, 0.11 Monticello Unit 3, 0.06 Limestone Unit 2, 0.08 Limestone Unit 1, 0.08 San Miguel, 0.60

Scrubber Retrofits Big Brown Unit 1, 0.04 Big Brown Unit 2, 0.04 Monticello Unit 1, 0.04 Monticello Unit 2, 0.04 Coleto Creek Unit 1, 0.04 Tolk Unit 172B, 0.06 Tolk Unit 171B, 0.06

EPA said it does not anticipate that San Miguel will have to install any additional control in order to comply with this emission limit.

EPA says scrubber projects aren't a specific compliance mandate

“We propose to find that these emission limits will result in emission reductions that will achieve reasonable progress at Big Bend, the Guadalupe Mountains, and the Wichita Mountains,” said EPA. “These emission limits reflect the degree of emission reduction that can be achieved by seven SO2 scrubber retrofits and seven SO2 scrubber upgrades, but we do not prescribe how the facilities must meet these emission limits. We determined that these emission limits are necessary to achieve reasonable progress based on our four-factor analysis, which demonstrates that the underlying controls are cost-effective and result in significant visibility improvement.

“We propose that those sources whose proposed emission limits can be achieved by installing scrubber retrofits must comply with the emission limits within five years of the effective date of our final rule. We propose that those sources whose emission limits can be achieved by conducting scrubber upgrades must comply with the emission limits within three years of the effective date of our final rule, except for San Miguel, for which we propose compliance within one year because that unit has been recently meeting our proposed emission limit.”

EPA's arguments about use of scrubbers used Big Brown Unit 1 as an example. The Texas Commission on Environmental Quality's (TCEQ) cost-effectiveness calculation for post-combustion controls on Big Brown Unit 1 was based on reducing a projected 2018 SO2 emission level of 23,142 tons per year (tpy) by 90%, resulting in a reduction of 20,828 tpy. This results in a cost of $32,766,310/yr, or a cost-effectiveness calculation of $1,573/ton. “However, the installation of a scrubber would allow Big Brown flexibility in fuel choice thus allowing the unit to continue to burn the higher average sulfur fuel it currently burns, instead of moving to the low sulfur coal predicted by [the integrated planning model] IPM,” EPA noted.

Comments on this proposal must be received on or before Feb. 17, 2015.

This article was republished with permission from

 

 

 

 

2014 Articles

Harvard Law School professor pays Clean Power Plan is unconstitutional

12/31/2014

Laurence H. Tribe, professor of constitutional law at Harvard University and former mentor to Barack Obama, said in an article last week that the EPA’s Clean Power Plan is unconstitutional.

3 SKorea workers die at nuke plant construction site

12/30/2014

SEOUL, South Korea (AP) — Three South Korean workers died Friday after apparently inhaling toxic gas at a construction site for a nuclear plant being built by South Korea's monopoly nuclear power company, which has come un...

UMaine in business of certifying turbine blades

12/30/2014

ORONO, Maine (AP) — The University of Maine has tested its largest wind turbine blade to date. UMaine's Advanced Structures and Composites Center completed static strength testing this month of a 184-foot-long wind turbine...

Mergers, EPA carbon plan generated much attention during 2014

12/29/2014

Mergers, the Environmental Protection Agency (EPA) Clean Power Plan, cheap natural gas and the polar vortex were among the most noteworthy generation stories of 2014.

Developer opens Ohio review for 800-MW, gas-fired project

12/29/2014

Clean Energy Future-Lordstown LLC plans an 800-MW, gas-fired power project, and on Dec. 24 applied with the Ohio Power Siting Board for certain routine waivers it needs before filing a full siting application for this proj...

New England utility exec named to Vermont PSB

12/29/2014

A woman who worked for Vermont's Department of Public Service for 17 years is going to become the next member of the utility-regulating Public Service Board. The appointment of Sarah Hofmann was announced Monday by Gov. Pe...

Brown picks aide to lead troubled California utility board

12/29/2014

Gov. Jerry Brown named a former adviser on Tuesday to be the next head of California's troubled utilities commission, replacing a regulatory chief accused of back-channel dealings with utilities. Michael Picker, a former a...

Washington state carbon emissions dropped in 2011

12/29/2014

Greenhouse gas emissions in Washington state dropped by about 4.6 percent between 2010 and 2011, led by reductions in emissions from the electricity sector, according to the latest figures released by the state. The latest...

Group wants state regulators recused from PNM case

12/29/2014

State regulators in less than two weeks are to begin deliberating a proposal that calls for shutting down part of an aging coal-fired power plant in northwestern New Mexico that serves more than 2 million customers in the ...

Vermont Yankee plant prepares to shut down

12/29/2014

The Vermont Yankee nuclear plant is getting ready to shut down. Its owner, Entergy Corp., says it is closing the plant for economic reasons. The plant in Vernon is expected to disconnect from the regional power grid Monday.

PSEG Solar to acquire Maryland solar project from juwi

12/23/2014

PSEG Solar Source will acquire a 12.9-MW solar energy facility near Waldorf, Maryland from juwi solar (JSI). The PSEG Waldorf Solar Energy Center will increase the capacity of PSEG Solar Source's portfolio to 123-MW.

PG&E discloses more emails with state regulators

12/23/2014

California's largest power utility released a dozen more emails Monday that it said showed improper back-channel discussions between the utility and top state regulators.

Indianapolis airport solar farm expansion completed

12/23/2014

Contractors have finished bringing online dozens of acres of solar panels at Indianapolis International Airport, solidifying its status as the home of the nation's largest airport-based solar farm.

French power company to pay $772M in bribery case

12/23/2014

A French power and transportation company has agreed to pay $772 million to resolve allegations that it bribed high-ranking foreign government officials for lucrative projects, the Justice Department said Monday.

Nebraska nuclear plant back online after short outage

12/23/2014

The Fort Calhoun nuclear power plant is back online less than a week after its main generator unexpectedly shut down as a precaution.

Ameren Missouri plans $135M in energy efficiency

12/23/2014

Missouri's largest electric company said Monday that it plans to invest $135 million in energy efficiency programs for customers over a three-year period.

TEPCO completes nuclear fuel assemblies removal from Fukushima 4

12/22/2014

Tokyo Electric Power Co. (TEPCO) said it has safely removed the fuel assemblies from the most damaged nuclear reactor at the Fukushima Daiichi nuclear power plant.

B&W Vølund to build waste-to-energy power plant in Scotland

12/22/2014

In a consortium with Interserve, Babcock & Wilcox Co.’s (B&W, NYSE:BWC) subsidiary, Babcock & Wilcox Vølund A/S (B&W Vølund), will engineer, procure and construct (EPC) a waste-to-energy (WTE) power plant f...

SKorea holds N-plant drills against cyber threats

12/22/2014

South Korea's monopoly nuclear power company said it began drills Monday against possible cyberattacks after online threats of attack against its plants.

PSC approves solar power project

12/22/2014

The Public Service Commission has approved solar power project planned by Kentucky Utilities and Louisville Gas and Electric in Mercer County.

Did You Like this Article? Get All the Energy Industry News Delivered to Your Inbox

Subscribe to an email newsletter today at no cost and receive the latest news and information.

 Subscribe Now

Whitepapers

Maximizing Operational Excellence

In a recent survey conducted by PennEnergy Research, 70% of surveyed energy industry professional...

Leveraging the Power of Information in the Energy Industry

Information Governance is about more than compliance. It’s about using your information to drive ...

Reduce Engineering Project Complexity

Engineering document management presents unique and complex challenges. A solution based in Enter...

Revolutionizing Asset Management in the Electric Power Industry

With the arrival of the Industrial Internet of Things, data is growing and becoming more accessib...