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Ameren Missouri

Ameren Missouri Completing $53 Million Reliability Upgrade to Bagnell Dam

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The dam, which forms the popular recreational Lake of the Ozarks, provides renewable and reliable energy to the state

Construction crews have poured the final yards of concrete and are completing finishing touches on Ameren Missouri’s $53 million reliability upgrade to the historic Bagnell Dam, a major source of clean energy for the state. The project includes installation of a series of new anchors and concrete on the downstream side of the dam, which improves overall safety, efficiency and reliability of the 85-year-old structure.

“For nearly a century, the Bagnell Dam has reliably powered homes and businesses across the region,” said Warren Witt, director of hydro operations at Ameren Missouri. “These upgrades ensure the dam will continue to be a top producer of clean, renewable energy for Missouri’s communities for the next 100 years.”

The project is finishing ahead of schedule. Initial work began March 2017 and included the removal of timeworn concrete from the surface of the dam. Crews then installed 67 post-tensioned anchors, strengthening the connection to bedrock. More than 66 million pounds of new concrete was poured to further weigh down the dam. This is the first major structural update in more than 30 years and builds on Ameren’s expertise in enhancing dam safety.

“The work our engineers perform to enhance the structural integrity of the Bagnell Dam continues to be viewed as a best practice and has been implemented on dams across the globe,” said Witt. “Closer to home, we know these recent improvements help drive local economic development. For example, during the first 16 months of the project more than 220 construction jobs were created for the local trades and vendors to the Osage area, translating to an estimated $40 million impact on the area through additional spending.”

Ameren Missouri hired Missouri-based MC Industrial, a McCarthy Holdings company, as the project’s on-site general contractor. Before starting the project, the construction plan was reviewed and certified by independent engineers as well as the federal government. Throughout the project, Ameren and MC Industrial worked closely to carefully plan the construction schedule and avoid major disruptions to local residents and tourists.

“The Lake of the Ozarks is beloved by residents and tourists alike – and we wanted to be sure our project wouldn’t impede enjoyment of the lake or surrounding areas,” said Witt. “We are grateful to the Lake community and its visitors for their flexibility and patience as we complete this significant project to continue to ensure clean, reliable energy to our customers.”

Bagnell Dam houses Ameren Missouri’s Osage Energy Center. In 2017 it produced more than 624,000 megawatt-hours of energy, supplying approximately 52,000 homes with renewable energy for the entire year.

Ameren Missouri has been providing electric and gas service for more than 100 years, and the company’s electric rates are among the lowest in the nation. Ameren Missouri’s mission is to power the quality of life for its 1.2 million electric and 130,000 natural gas customers in central and eastern Missouri. The company’s service area covers 64 counties and more than 500 communities, including the greater St. Louis area. For more information, visit Ameren.com/Missouri or follow us at @AmerenMissouri or Facebook.com/AmerenMissouri.

 

FACT SHEET

Bagnell Dam, Lake of the Ozarks, Missouri

Background

  • MC Industrial was selected by Ameren Missouri as general contractor for the Bagnell Dam Anchoring project, a $53 million investment in major structural and anchoring upgrades.
  • As a significant hydropower project, the scope of work demanded expertise in heavy civil and major dam rehabilitation to ensure a safe and high-quality outcome, as well as the long-term sustainability of the Bagnell Dam to provide clean energy to the surrounding community.
  • The last major structural update at Bagnell Dam was completed in the early 1980s, when 277 post-tensioned anchors were installed to hold the dam into the bedrock.

Location and Dam History

  • Bagnell Dam and Osage Energy Center, Lake of the Ozarks, Missouri
  • The Lake of the Ozarks stretches for more than 54,000 acres in southern Missouri.
  • The Bagnell Dam, which created the lake in 1931, holds back 600 billion gallons of water from the Osage River. Bagnell is the largest privately funded dam in the U.S.
  • Besides holding water back for the power plant, the dam facilitates a billion-dollar tourism industry for the state of Missouri.

Project Overview

  • Project team mobilized on site in March 2017 for the 18-month project, and began construction work in April 2017 with the first of three work phases.
  • Project comprised of three parts: new post-tension anchors to help hold the dam to the underlying bedrock; concrete added between the highway piers to add weight to the dam; and a new concrete overlay to replace worn and cracked concrete on the east and west sections.

Construction Features

  • 17,000 cubic yards of concrete placement = 66.2 million pounds
  • Added a total hold back capacity by 200 million pounds
  • 67 post-tensioned anchors – each has a 2 million pound hold back capacity
  • 198 foundation drains
  • 500′ spillway section contains 12 flood gates that spill approx. 200,000 cfs during high water
  • Utilized two hydro demolition machines / robots built specifically for this project to climb the wall and remove 3 inches of concrete off the face of the dam using 35,000 psi water over 100,000 square feet of area
  • 33 anchors over the spillway that required a large temporary steel work platform
  • Overlay – 9 to 12 inches of sloped concrete on the downstream side of the dam; 55,000 square feet of area 

Partners

  • Engineer: Rizzo (Paul C. Rizzo Associates, Inc., PA)
  • Key Subcontractors: Brayman Construction, Rampart Hydro Services 

MC Industrial, Inc., a McCarthy Holdings company, serves the specialized construction needs of the industrial market nationwide, providing turnkey services that deliver uncompromising commitment to safety and quality regardless of project size or complexity. MC Industrial has decades of proven experience in a variety of markets including power & renewables, petrochemical & refinery, heavy industrial and manufacturing. More information is available at www.mcindustrial.com 

McCarthy Building Companies, Inc. is the oldest privately held construction company in the nation – with more than 150 years spent collaborating with partners to solve complex building challenges on behalf of its clients. More information about the company is available online at www.mccarthy.com or by following the company on FacebookTwitterLinkedInInstagram and Google+.

Bagnell Dam houses Ameren Missouri’s Osage Energy Center. In 2017 it produced more than 624,000 megawatt-hours of energy, supplying approximately 52,000 homes with renewable energy for the entire year.

Ameren Missouri has been providing electric and gas service for more than 100 years, and the company’s electric rates are among the lowest in the nation. Ameren Missouri’s mission is to power the quality of life for its 1.2 million electric and 130,000 natural gas customers in central and eastern Missouri. The company’s service area covers 64 counties and more than 500 communities, including the greater St. Louis area. For more information, visit Ameren.com/Missouri or follow us at @AmerenMissouri or Facebook.com/AmerenMissouri.

Ameren Missouri Proposal Offers Customers Fast-Charging Electric Vehicle Stations, Improved Air Quality & New Choices

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Charge Ahead program designed to make the state more competitive

 Ameren Missouri has filed its Charge Ahead program with the Missouri Public Service Commission. The proposed program encourages electric vehicle (EV) and equipment use among Missouri residents and businesses and is focused on helping Ameren Missouri customers use electricity in ways that provide a broad range of benefits, including reduced emissions, lower overall energy costs and improved productivity.

If approved, the program would initiate the following:

  • New incentives for the installation of workplace, multifamily, and public EV charging stations, as well as fast-charging EV stations near interstate highways
  • Incentives for commercial customers transitioning to efficient electric machinery, such as forklifts and other material-handling equipment
  • Improved energy-grid accessibility and reliability through a revised line-extension policy

“Our Charge Ahead program is designed with Missouri’s future in mind by eliminating the barriers for EV charging and promoting the use of more efficient and cleaner electric equipment in commercial settings and on our roads,” said Michael Moehn, president, Ameren Missouri. “At the same time, the program will help provide lower costs to customers, improve air quality by reducing emissions and help promote economic growth by ensuring Missouri maintains a competitive business environment.”

In addition to increasing access to EV charging stations, the Charge Ahead program will offer numerous incentives for Ameren Missouri’s commercial customers transitioning to electric equipment. It also allows for a revision in Ameren Missouri’s line-extension policy, which will make accessing and connecting to the electric grid easier and more affordable for commercial and industrial customers.

“Today, the quantity and quality of efficient electric equipment options available for use in commercial settings is impressive,” said Steve Wills, director, rates and analysis, Ameren Missouri. “We want to help our commercial and industrial customers transition to this type of equipment because it makes good financial sense, and it’s better for the environment.”

Charge Ahead also supports Ameren Missouri’s goal of transitioning its energy generation to cleaner sources while ensuring reliability and keeping customer rates affordable. In 2017, Ameren Missouri announced a landmark and forward-thinking $1 billion investment in alternative energy sources. This investment will include building wind turbines in Missouri and surrounding states and result in the generation of 700 megawatts of wind-generated power by 2020. The company also plans to add 100 megawatts of solar-generated power over the next 10 years, with 50 megawatts expected to come on line by 2025. This is Ameren Missouri’s largest-ever commitment to clean, renewable energy.

Ameren also is committed to bringing the benefits of electrification to its employees and has installed 80 vehicle charging stations at its campus locations.

Ameren Missouri has been providing electric and gas service for more than 100 years, and the company’s electric rates are among the lowest in the nation. For more information, visit Ameren.com/Missouri or follow us at @AmerenMissouri or Facebook.com/AmerenMissouri

Ameren Missouri Plans Major Expansion of Wind, Solar Generation to Serve Customers

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Company also Establishes Goal to Cut Carbon Emissions by 80 Percent

Ameren Missouri announced today a forward-thinking plan to dramatically increase the amount of wind and solar generation to provide cost-effective and sustainable energy for its customers.

Ameren Missouri, a subsidiary of Ameren Corporation (NYSE: AEE), plans to add at least 700 megawatts of wind generation by 2020, representing an investment of approximately $1 billion. The potential exists to add even more wind generation in the coming years as a result of improving technology and economics, as well as renewable energy initiatives with large customers.

The company also plans to add 100 megawatts of solar generation over the next 10 years, with 50 megawatts expected to come online by 2025.

“This is Ameren Missouri’s largest-ever commitment to clean, renewable energy,” said Michael Moehn, president of Ameren Missouri. “We are committed to bringing our customers innovative solutions that are both cost-effective and environmentally responsible while maintaining the reliability our customers expect.”

Wind Generation

The new wind generation is expected to be located in Missouri and neighboring states using American-made turbines. The source, location and cost of the new wind generation is still under negotiation with several developers.

“We expect this tremendous growth in wind generation to provide great value to our customers, who will save money on energy costs,” Moehn said. “Because of significant advancement in technology, harnessing wind is less expensive than other forms of new generation.”

The planned generation is expected to be operational by 2020.

“We believe it is in our customers’ long-term best interest for Ameren Missouri to own this wind generation,” said Ajay Arora, vice president of environmental services and generation resource planning at Ameren.

Solar Generation

The addition of 100 megawatts of solar generation over the next 10 years is expected to be developed in multiple phases.

Planning is underway on two projects. Earlier this year, Ameren Missouri announced plans to build a solar generation facility at St. Louis Lambert International Airport. That facility is expected to be complete in 2018. A separate project creates partnerships with business customers to locate an Ameren Missouri-owned solar generation facility on their property.

“These innovative solar programs have great promise,” Arora said. “Moving generation assets closer to where the energy is needed most is one of the ways we’re making the grid smarter, stronger and more resilient.”

Carbon Reduction

Further, the company is establishing a goal of reducing its carbon emissions 80 percent by 2050 from the 2005 level.

“We are the first investor-owned utility in the state, and among the first in the country, to announce a carbon emissions goal of this magnitude,” Moehn said.

To meet this goal, Ameren Missouri is targeting a 35 percent carbon emissions reduction by 2030 and a 50 percent reduction by 2040 from the 2005 level. Since 2005, Ameren Missouri has significantly reduced emissions, including a 26 percent reduction in carbon emissions in 2016.

Specifics of Ameren Missouri’s plan also include:

  • Managing the largest, most comprehensive energy efficiency program in Missouri’s history. The plan consists of a comprehensive portfolio of programs for business and residential customers. The energy savings goal for the current three-year plan is 570,000 megawatt-hours, equivalent to the energy used by nearly 45,000 homes, and representing a carbon-emissions reduction equivalent to taking 115,000 cars off the street. These programs give residents and businesses tools to save money and help make costs more predictable.
  • Retiring over half of Ameren Missouri’s coal-fired generating capacity. This includes retiring the Meramec Energy Center in south St. Louis County by the end of 2022.
  • Addressing the need to transition to a smart energy grid that can support more renewable energy, universal and private solar and customers’ desire for more timely information. In the next two decades, the energy grid will be the lifeline for cleaner energy connecting hundreds, if not thousands, of small and regional renewable energy generators to the grid in real time while maintaining the energy reliability demanded by customers.

Ameren Missouri’s Integrated Resource Plan (IRP), a 20-year outlook that supports cleaner energy in Missouri, was filed today with the Missouri Public Service Commission, and is consistent with Missouri’s Renewable Energy Standard. The IRP, which is filed every three years, examines electric customers’ projected long-term energy needs and describes Ameren Missouri’s preferred approach to meeting those needs in a cost-effective fashion that maintains system reliability.

“The IRP is developed with the input of a wide variety of stakeholders and is consistent with Ameren’s goal of transitioning its energy generation in a responsible fashion to ensure reliability while keeping customer rates affordable,” Arora said.

In order to add these resources to its generation portfolio, Ameren Missouri is required to seek certificates of convenience and necessity from the Missouri Public Service Commission for projects located in Missouri and to obtain interconnection agreements so that it can use transmission services of the appropriate Regional Transmission Authority.

More information can be found at AmerenMissouri.com/IRP.

About Ameren Missouri

Ameren Missouri has been providing electric and gas service for more than 100 years, and the company’s electric rates are among the lowest in the nation. Ameren Missouri’s mission is to power the quality of life for its 1.2 million electric and 127,000 natural gas customers in central and eastern Missouri. The company’s service area covers 64 counties and more than 500 communities, including the greater St. Louis area. For more information, visit Ameren.com/Missouri or follow us at @AmerenMissouri or Facebook.com/AmerenMissouri.

MC Industrial & Ameren Missouri Launch Phase One of Bagnell Dam Anchoring Project

in Companies/News
Warren Witt & Mike Hartwig

MC Industrial, Inc. a McCarthy Holdings company, and Ameren Missouri recently announced the official launch of phase one in reconstruction work of the Bagnell Dam, located in Lake of the Ozarks, Mo.

MC Industrial was selected by Ameren Missouri as the general contractor for the Bagnell Dam Anchoring project, a $52 million investment in major structural and anchoring upgrades on the dam. The project team mobilized on site in March for the 18-month project, and began construction work in April with the first of three work phases:

  • Installation of 68 new post-tension anchors to help hold the dam to the underlying bedrock.
  • New concrete added between the highway piers to add weight to the dam.
  • New concrete overlay to replace worn and cracked concrete on the east and west sections.

“We have worked with Ameren on multiple power projects and are honored to be leading construction on this significant and exciting hydropower project for Ameren,” said Mike Hartwig, MC Industrial project manager. “The MC Industrial team’s expertise in heavy civil and major dam rehabilitation ensures a safe and high quality project outcome, as well as the long term sustainability of Bagnell Dam, which provides clean energy to the surrounding community.”

Construction work will go by section of the dam, with most of this year’s activity taking place on the west side of the dam.  Construction work has been scheduled for weekdays during daylight hours to maximize convenience to lake-area residents and vacationers.

“This project is about keeping this vital asset providing clean energy in the long-term, using the best possible engineering available today,” said Warren Witt, director of hydro operations at Ameren Missouri. “Osage Energy Center just marked its 85th year in service. Completing this project will ensure it operates reliably and safely, affording the quality of life for hundreds of thousands who enjoy all that the Lake of the Ozarks has to offer each year.”

Ameren Missouri has been providing electric and gas service for more than 100 years, and the company’s electric rates are among the lowest in the nation. 

MC Industrial is a national construction firm, dedicated to the highly-specialized needs of the industrial marketplace. 

Ameren Missouri Proposes Plan for Solar Panels at Lambert Airport

in Companies/Homepage Primary/News

Energy produced will benefit customers

 

Ameren Missouri is taking off on a forward-thinking plan to increase the amount of solar energy available to customers. Today, the company announced plans for a new solar generation facility to be built at St. Louis Lambert International Airport. Energy produced there would be available for its customers through the Community Solar Program.

“What better way to showcase that we’re a progressive region committed to finding innovative solutions to energy generation than by placing a large solar field at the airport,” said Mike Mueller, vice president of economic and technology development at Ameren. “Ameren Missouri continues to lead the way by investing in more clean energy delivered reliably and affordably to our customers.”

Customer Choice
The plan calls for Ameren Missouri, a subsidiary of Ameren Corporation (NYSE: AEE), to build up to a one megawatt facility at Lambert. Once the plan is approved by city officials and state regulators, Ameren Missouri customers can sign-up for blocks of solar generated energy.

“This is a simple solution for customers to take part in solar generation,” said Dan Lidisky, director of technology and renewable development at Ameren. “Nothing is installed on a customer’s roof, and the experts at Ameren Missouri take care of maintaining the solar panels.”

The airport is an ideal location for solar panels. There is an abundance of open land that would otherwise go unused. Panels would be positioned away from runways and out of the line-of-sight of pilots taking off or coming in for a landing.

“We’re proud to be a part of this proposed project because St. Louis Lambert International Airport is heavily focused on impactful, environmentally sustainable projects and this is another positive piece that aligns with our mission,” said Rhonda Hamm-Niebruegge, airport director.

How it Works
The program will be open to all Ameren Missouri residential and small business customers. Once the subscription period opens later this year, interested customers can sign up for 100 kilo-watt-hour blocks of solar generation capacity. Customers can subscribe for the equivalent of up to half of their average electric usage based on the previous 12 months’ usage. A limited number of blocks will be made available, at a price yet to be determined. Once the program is fully subscribed, construction will begin. Solar generation could start as soon as next spring. Customers interested in the program can go to AmerenMissouri.com/communitysolar for more information.

“Based on what our customers are telling us, we believe there is a strong interest,” Lidisky said. “Only those who sign up for the program will pay the cost related to installation of this new solar generation facility.”

Long-Term Plan
Ameren Missouri is focused on adding 500 megawatts of new renewable energy generation. In addition to this solar project, Ameren Missouri recently launched a second solar program targeted at businesses interested in hosting solar generation on their property. The company currently operates the 5.7 megawatt O’Fallon Renewable Energy Center, which is capable of producing nearly 8 million kilowatt-hours of energy from the sun’s rays each year.

Ameren Missouri has been providing electric and gas service for more than 100 years, and the company’s electric rates are among the lowest in the nation. Ameren Missouri’s mission is to power the quality of life for its 1.2 million electric and 127,000 natural gas customers in central and eastern Missouri. The company’s service area covers 64 counties and more than 500 communities, including the greater St. Louis area. For more information, visit Ameren.com/Missouri or follow us at @AmerenMissouri or Facebook.com/AmerenMissouri.

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