Guest essay by John Popovich

“Too cheap to meter” is typically attributed to Strauss, but “The Concise Untold History of The United States” includes the following on Pg. 155 (In December 1953, Eisenhower had unveiled his “Atoms for Peace” program in a speech at the UN, mesmerizing the thirty-five hundred delegates. He Promised “energy too cheap to meter,” at home and abroad.) Did Eisenhower go off script before Strauss? Is this part of the “untold” history of the United States?

The lure of free energy offered by atomic power caused many scientists to propose schemes that today seem hopelessly naive; I am old enough to have read some of them.

One of the vexing problems with fusion power plants is plasma facing materials. Not even the collective exuberance of fusion proponents can solve this problem. I am not a student of nuclear power but to give you an idea of the problems magnitude from a student of the subject: From Wikipedia “Plasma-facing material”:French Nobel laureate in physics, Pierre-Gilles de Gennes said of nuclear fusion, “We say that we will put the sun into a box. The idea is pretty. The problem is, we don’t know how to make the box.”^[15]

If any nuclear proponents on WUWT have solutions to this problem they should pursue them as it would greatly improve the prospects for fusion power.

In my youth I read a proposal for nuclear power plants that would use large underground cavities to store liquid water and steam heated by small fission or fusion explosions; something that we know how to do. The cavities which can be created by salt solution mining or by underground nuclear explosions would also seem attractive for using the heat from spent fuel rods and nuclear waste. Others may know why this scheme is unattractive. It may be that some solutions are too crude to warrant serious consideration or threaten to take money from the fusion cartel.

Locating nuclear power plants on ships seems attractive for regions near rivers or oceans. The U.S. has manufactured nuclear powered submarines and surface vessels for ~60years with a good safety record. A few floating nuclear power plants are being constructed and may offer an attractive way forward. Heat exchanger cost is greatly reduced and emergency passive cooling is more easily accomplished. Plants can be modular and standardized for efficient mfr. in a factory environment and transported to provide power where needed.

New nuclear power plants will have to compete with natural gas combined cycle power plants which have a much lower capital cost, ~twice the thermodynamic efficiency, and a large amount of low cost natural gas available from horizontal drilling and fracturing. Twice the thermodynamic efficiency means half the sink side heat exchanger cost and half as much heat dumped to the environment. Fuel costs as a proportion of total utility cost are decreasing.

Part one of the essay is here

Guest post by David Middleton

THE 240MWE FACILITY IS THE LARGEST POST-COMBUSTION CARBON CAPTURE PROJECT IN THE WORLD

WASHINGTON, D.C. — Secretary of Energy Rick Perry took part in a ribbon-cutting ceremony today to mark the opening of Petra Nova, the world’s largest post-combustion carbon capture project, which was completed on-schedule and on-budget. The large-scale demonstration project, located at the W.A. Parish power plant in Thompsons, Texas, is a joint venture between NRG Energy (NRG) and JX Nippon Oil & Gas Exploration Corporation (JX).

“I commend all those who contributed to this major achievement,” said Secretary Perry. “While the Petra Nova project will certainly benefit Texas, it also demonstrates that clean coal technologies can have a meaningful and positive impact on the Nation’s energy security and economic growth.”

Funded in part by the U.S. Department of Energy (DOE) and originally conceived as a 60-megawatt electric (MWe) capture project, the project sponsors expanded the design to capture emissions from 240 MWe of generation at the Houston-area power plant, quadrupling the size of the capture project without additional federal investment. During performance testing, the system demonstrated a carbon capture rate of more than 90 percent.

At its current level of operation, Petra Nova will capture more than 5,000 tons of carbon dioxide (CO₂) per day, which will be used for enhanced oil recovery (EOR) at the West Ranch Oil Field. The project is expected to boost production at West Ranch from 500 barrels per day to approximately 15,000 barrels per day. It is estimated that the field holds 60 million barrels of oil recoverable from EOR operations.

The successful commencement of Petra Nova operations also represents an important step in advancing the commercialization of technologies that capture CO₂ from the flue gas of existing power plants. Its success could become the model for future coal-fired power generation facilities. The addition of CO₂ capture capability to the existing fleet of power plants could support CO₂ pipeline infrastructure development and drive domestic EOR opportunities.

U.S. Department of Energy

The Petra Nova carbon capture system was installed in the W.A. Parish generation station.  This is the largest and cleanest fossil fuel generaton station in the United States:

W.A. Parish Electric Generation Station, Thompson, Texas

Owner/operator: Texas Genco Holdings Inc.

Texas Genco has invested heavily in upgrading its W.A. Parish coal- and gas-fired plant southwest of Houston. Although this nine-unit, 3,653-MW plant is the largest fossil-fueled plant in America, its NOx emissions have been reduced to microscopic levels. Based on those levels, W.A. Parish could rightly claim that it is among the cleanest coal plants in the U.S.

By Brett Butler, Technical Supervisor, W.A. Parish Plant

Texas Genco’s W.A. Parish Electric Generation Station (WAP) is the largest coal- and gas-fired power facility in the U.S. based on total net generating capacity. It and its owner, Texas Genco Holdings Inc., operate in the Electric Reliability Council of Texas (ERCOT), one of the largest electric power markets in the nation. Over the past few years, the majority-owned subsidiary of Houston-based CenterPoint Energy Inc. has met the challenge of adding emissions control equipment to these baseload units while maintaining the availability and reliability required by ERCOT’s competitive market.

In the process, Texas Genco has emerged as an industry leader at reducing emissions and demonstrating new NOx-control technologies. The company’s fleet of plants operates at one of the lowest NOx emission rates in the country, and WAP likely emits less NOx on a lb/MMBtu basis than any coal-fired plant of any size in the U.S. Cleanliness is costly; the company has spent more than $700 million on new emission controls since 1999.

With the commissioning of another round of emissions-control equipment this year, NOx emissions from Texas Genco’s Houston-area power plants—including WAP—will be 88% lower than 1998 levels. These actions play a major role in the Houston/Galveston Area Ozone State Implementation Plan and are helping to clean the air in the greater Houston area. To honor the accomplishment, the W.A. Parish plant was recently given the Facility Award by the Power Industry Division of the Instrumentation, Systems, and Automation Society (Research Triangle Park, N.C.) for installing equipment to reduce emissions and improve reliability while minimizing operational costs.

[…]

Platts

The W.A. Parrish Generation Station has a generating capacity of about 3,660 MW (2,740 MW of coal and 1,190 MW of natural gas capacity).  Its total capacity is approximately the same as the ten largest solar PV plants in the U.S. combined (3,713 MW).  From 2002-2009, W.A. Parrish operated at 85% of capacity.  The war on coal gradually reduced its operations to 57% of capacity in 2016.

The Petra Nova carbon capture system will enable the plant to capture about 90% of the CO2 from 240 MW of its coal capacity.  It is expected to capture about 1.6 million tons of CO2 per year.  The cost of the carbon capture system was approximately $1 billion, with the taxpayers picking up 19% of the tab.  Normally, I would call this a pointless waste of money.  It won’t have any effect on atmospheric CO2 or the weather.  However, this carbon capture system actually serves a useful purpose:

NRG Petra Nova Fact Sheet

The Captured CO₂ will employ Enhanced Oil Recovery to enhance production at the West Ranch oil field, which is operated by Hilcorp Energy Company. It is expected that oil production will be boosted from around 300 barrels per day today to up to 15,000 barrels per day while also sequestering CO₂ underground. This field is currently estimated to hold approximately 60 million barrels of oil recoverable from EOR operations

How Carbon Capture Works

Download high resolution images

NRG

The West Ranch oil field has produced about 390 million barrels of oil since 1938. CO₂ injection will boost the production from 300 to as much as 15,000 barrels of oil per day.  The EOR could lead to the recovery of 60 million barrels of oil that would otherwise be “left in the ground.”  Irony is such a beautiful thing!  

And the really cool thing about this project: It makes money!

FiscalNotes

NRG’s Petra Nova Plant Captures Carbon, Boosts Bottom Line

An interview with David Greeson, Vice President of Development, NRG Energy Inc.

by Brian Wellborn

NRG Energy Inc. (NRG) and JX Nippon Oil & Gas Exploration jointly operate the Petra Nova Carbon Capture project, the world’s largest retrofit post-combustion carbon capture system, at the W.A. Parish Generating Station southwest of Houston.

Fiscal Notes recently spoke with NRG Vice President of Development David Greeson to discuss the Petra Nova project and learn what makes its capture system unique, environmentally sound and profitable.

Fiscal Notes: What are Petra Nova’s broad environmental goals?

David Greeson: The goal of the Petra Nova project is to capture more than 90 percent of the carbon dioxide (CO2) in the exhaust flue gas from an existing coal-fired unit at the W.A. Parish power plant. We want to prove it’s feasible to build a carbon capture system on schedule and on budget. Demonstrating the system working at full commercial scale will provide a path forward to address CO2 emissions from existing coal-fired plants, both in the U.S. and around the world.

In addition, we’re looking to create a commercial structure that couples power generation with oil recovery for potential long-term viability — not only to pay for the carbon capture and storage system but also to provide an economic return for investors.

[…]

Fiscal Notes: How economically viable is Petra Nova’s carbon capture process?

Greeson: As long as oil is priced at around $50 per barrel or above, sales of the oil from the West Ranch field will pay for the Petra Nova project.

[…]

Comptroller.Texas.Gov

The price of CO₂ for EOR projects is generally pegged to the price of oil.  At >$50/bbl, the sale of the CO₂ to Hilcorp will pay for the carbon capture system.  Projects like this do not need subsidies.

This will enable the coal-fired plants to operate at a higher capacity and prevent 60 million barrels of oil from becoming “stranded assets.”  I just love irony!

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