Generation, Fuel and Environment

CRN Contact: Andrew Cotter, Program Manager
Do you have a questions about CRN Generation, Fuels and Environment research? Send your inquiry to our staff.

Active Projects:GFE  - coalplant
  • Assessment of the Potential of Increasing Efficiency of Existing Generating Units
    Calculating the long-term cost savings, payback and CO2 per MWh reduction to electric co-ops and their consumer-members for concepts such as the following with payback in two years or less: Boiler Master Tuning Program, Combustion Optimization, improved generator hydrogen purity, variable speed drives, boiler blow down heat recovery, install tuning vanes in exhaust ducts, etc. Includes detailed evaluation of low-level flue gas heat recovery (using condensing heat exchangers) to increase cycle efficiency or produce electricity.
  • Utilization of Fossil Plant CO2 for the Production of Syngas for Synthetic Fuels and Chemicals
    To develop a conceptual flow sheet and economic analysis for the conversion of captured CO2 via high temperature co-electrolysis into to syngas, oxygen (for oxycombustion) and other high-value liquid fuels or chemicals.
  • Coal Ash Refining Technology Assessment
    Focused on identifying one or more coal ash refining options that show significant regulatory and economic promise that are ready for field demonstration as well as identify new by-products from the use of coal ash.  This includes technologies to optimize ash composition for use in concrete or extracting.
  • Multi-Pollutant Control Demonstration — Phase II  
    A collaborative demonstration funded by 10 generation and transmission co-ops, the Tennessee Valley Authority and a Canadian Utility to asses CRN MPC technologies that provide lower cost alternatives to conventional pollution controls.

    • Phase I successfully tested a lower cost HG removal technology at San Miguel Electric Cooperative. SMEC burns high sulfur lignite.
    • Phase II successfully tested a suite of technologies to remove HG and other heavy metals, SO2 and acid gasses at Arizona Electric Power Cooperative’s plant Apache.  Apache burns low sulfur sub bituminous coal.
    • Phase III will test another suite of technologies for the removal of NOx, as well as SO2 and acid gasses.
  • Impact of Cycling/Two Shifting on the O&M Cost and Reliability of Natural Gas Combined Cycle (NGCC) Power Plants
    Identifying the economic and reliability impact of cycling and two shifting NGCC power plants caused by penetration of non-dispatchable renewable generation.  A guide will be developed on methods to reduce the impact of cycling and two shift causing accumulation of damage in major plant components.
  • Evaluating the Benefits of Optimized Condenser Cleaning
    A recent draft report evaluates the benefits of optimized condenser cleaning. Three G&Ts participated with results indicating efficiency improvements of 0.3 percent to 0.7 percent fuel cost savings of $160,000 to $220,000 annually, plus replacement cost savings of at least $200,000 each year.
  • Replacement of OEM Components in Ageing Power Plant Boilers/HRSG (NGCC Heat Recovery Steam Generators) — Technical, Materials, and Cost Issues
    Assess the technical, material and commercial issues associated with replacing OEM components in ageing power plant boilers and HRSGS. Various replacement strategies are evaluated based on improving plant reliability as the assets age based on several plant case studies.

Cost-effective Emission Control Technologies Perform Well in Tests

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