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Challenges in Distributed Resources Deployment: Overcoming Cost Impediments

Overcoming obstacles such as high capital and operating costs associated with various distributed resources like internal combustion engines, fuel cells, and renewables. Addressing interconnection issues, standby power pricing, and potential benefits in competitive energy markets.

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Challenges in Distributed Resources Deployment: Overcoming Cost Impediments

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  1. IMPEDIMENTS TO EFFICIENT DEPLOYMENT OF DISTRIBUTED RESOURCES

  2. COMMODITY COSTS$/KW OR $/KWH • Capital cost of equipment • internal combustion engines • gas turbines • micro turbines • fuel cells • photovoltaics • wind turbines • Operating costs

  3. Internal Combustion Gen Sets • Installed capital costs are high • Non-fuel operating costs are high • Fuel costs are high • Limited on-site thermal sales opportunities

  4. Gas Turbines • Installed capital costs are high • Fuel costs are high

  5. Micro Turbines • Installed capital costs are high • Fuel costs are high • Operating costs are high • Technology unproven

  6. Fuel Cells • Evaluated on the promise of substantially lower annual operating costs • High capital costs • Expected stack life of fuel cells is relatively short and require significant replacement capital costs

  7. Solar and Wind • Availability of resources • Availability of land

  8. Commodity Cost Main Point • On a commodity dollars per kilowatt-hour or per-kilowatt basis against established coal and natural gas fired generating plants, DR faces an uphill battle…...

  9. Interconnection Issues • Interconnection • Access charges to distribution system • System upgrades • Operation and dispatch • Reliability issues • Worker safety

  10. Other Issues • Environmental concerns • Local citing issues • Standby charges • Fuel supply

  11. PRICING OF STANDBY POWER • Cost of service perspective • 100% of DG load usually req’d to be reserved • Supplier must stand ready to meet the potential requirements of all its customers • Provider of last resort concept • Insurance concept • Transmission & distribution cost recovery • Market based approaches

  12. Potential Benefits From Distributed Resources • Wider customer choice • Potential to supply 100% of end user needs • Potential for improved power quality and reliability in conjunction with host utility service

  13. Likely Role For DR In Competitive Generation Environment • Primarily “niche” markets • Short term fix for distribution system constraints • Uninteruptible Power Supply (UPS) • Green Markets • Isolated locations

  14. Biographical SketchRichard A. VoytasSupervising EngineerCorporate Planning, Ameren ServicesPhone: (314) 554-3025Fax: (314) 554-4679Current responsibilities at Ameren Services include market modeling, resource planning including non-utility generation analysis/coordination, load analysis and forecasting and load research. Prior positions at Ameren include: Interconnection Arrangements, Rate Engineering, Power Operations, Fossil Fuel Procurement and Engineering and Construction.Academic background includes a B.S. in Mechanical Engineering from the University of Missouri-Rolla and a MBA from St. Louis University. I am a registered professional engineer in the state of Missouri.

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