Project Detail – Southeastern US

Major Utility Company

Power plant

Services Provided:
  • Conceptual design analysis
  • Regulatory liaison
  • Detailed financial analysis
Project Objective:

Advanced Wall Technologies, LLC (AWT) met with representatives of the Utility Company to discuss AWT, LLC technology. The AWT technology is directly applicable to expansion of dry disposal capacity at coal fired utility generation facilities and the conversion of wet disposal basins to dry disposal operations. Further the applicability of AWT technology is some of the most cost effective on a unit cost basis available in the current and anticipated future regulatory environment. AWT, LLC prepared a series of scenarios common to CCB management facilities to make broad comparison of various options to assist in future decision making.

AWT, LLC Scope of Services

AWT modeled a series of possible options including 150, 70 and 46 acre CCP management facilities and made recommendations on permitting and regulatory timelines. All liner systems were to be Subtitle D compliant. Five scenarios were analyzed which included:

  1. New Subtitle D Construction Dry Disposal Facility
  2. New Construction Dry Disposal Facility Using perimeter AWT MSE Berm Technology To Maximize Disposal Capacity
  3. A. Vertical Expansion of Existing Dry CCB Management with AWT Berm Technology
    B. Vertical Expansion of Existing Dry CCB Management with AWT Berm Technology (Existing Subtitle D Equivalent Liner)
  4. Conversion of a Wet Disposal Basin to Dry Disposal Using AWT Berm Technology

AWT, LLC performed the requested analysis and presented them in the following manner:

  • Estimated volume in cubic yards (CY) of dry disposal airspace created and CCB volumes used in berm construction.
  • Cost in $/CY for dry disposal airspace created.
  • Area, in acres of the property used for the expansion.
Notable Accomplishments

The analysis performed revealed that in most cases the cost for creating airspace using AWT encapsulated berm technology was significantly cheaper than other options, often at a 30-80% discount to current methods of construction for disposal capacity expansion. Similar results were obtained for converting a wet disposal basin to a dry disposal facility. Additionally the AWT methods generally allow for a streamlined permitting timeline. Another significant benefit is the utilization of a utilities own CCP’s in the construction of the MSDE berm, often up to three (3) years of plant capacity.