Skip to main content
  • My account My account My account
  • Ways to save Ways to save Ways to save
  • Outages Outages Outages
  • Safety Safety Safety
  • About us About us About us
  • Contact us
  • My AES
    Choose your location
    EN
    Choose location

    AES Global

    AES Local

    Andes Argentina Brasil Bulgaria Chile Colombia Dominicana El Salvador Hawai‘i Indiana México Miami Valley Lighting Ohio Panama Puerto Rico Vietnam
    Search
    Search AES

    Utility mercury and air toxics standards (MATS)

    geo - aerial view of colombia fields forest and sky
    Utility mercury and air toxics standards (MATS)

    AES Indiana is committed to decreasing the environmental impact of producing power while also focusing on diversifying the power generation needs of its customers with cleaner, more efficient options to provide safe, reliable and affordable energy.

    AES Indiana has invested in new environmental controls at its Petersburg generating station and has converted units from coal to natural gas at its Harding street station to comply with new utility mercury and air toxic standards (MATS) set by the EPA.

    The Indiana Utilities Regulatory Commission (IURC) and approved AES Indiana's plans on August 15, 2013. 

    Construction began at the Petersburg facility in the fall of 2013. and now all unit are in compliance with MATS emission standards.

    The new environmental controls include:

    • Pulse air fabric filter systems (also called a “bag house”)
    • Flue gas desulfurization (FGD) system upgrades
    • Continuous emissions monitoring systems

    At Harding Street station, Units 5 and 6 were converted to natural gas as of December 2015.  Conversion of unit 7 was completed in early 2016.

      AES Indiana is proud of our track record of decreasing the environmental impact of producing reliable power while keeping prices affordable for our customers.

      Back to top

      Copyright © 2009-2023 The AES Corporation. All rights reserved. Terms of Use | Privacy

      Reproduction in whole or in part in any form or medium without the express written permission of The AES Corporation is prohibited. AES and the AES logo are trademarks of The AES Corporation. 

      My Account
    • Pay / View Bill (sign in)
    • Payment & Billing Options
    • Connect or Disconnect Service
    • Understand Your Bill
    • Green Power
    • About Us
    • Newsroom
    • Careers
    • Customer Support
    • Contact us
    • Outages
    • Accessibility
    • Resources
    • For Business Customers
    • For Builders
    • For Community Partners
    • For Educators
    • For Suppliers
    • Jump back to top