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Transmission System Customer Discussions – July 2009 Common Use System (CUS) Black Hills Power Basin Electric Power Coop

Transmission System Customer Discussions – July 2009 Common Use System (CUS) Black Hills Power Basin Electric Power Cooperative Powder River Energy Corporation. Prepared July 14, 2009. Agenda. Introductions Common Use System Overview Basin Electric Costs

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Transmission System Customer Discussions – July 2009 Common Use System (CUS) Black Hills Power Basin Electric Power Coop

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  1. Transmission System Customer Discussions – July 2009 Common Use System (CUS) Black Hills Power Basin Electric Power Cooperative Powder River Energy Corporation Prepared July 14, 2009

  2. Agenda • Introductions • Common Use System Overview • Basin Electric Costs • Transmission Rate Case Schedule • Customer Impacts • Discussion / Questions

  3. Regional Transmission System - Existing MONTANA WYOMING SHERIDAN SPEARFISH CARR DRAW RAPID CITY WYODAK Y. CRK BUFFALO HUGHES S. RC DC TIE B. CRK RENO OSAGE PUMPKIN BUTTES TECKLA HOT SPRINGS YELLOWCAKE SPENCE S DAKOTA NEBRASKA CASPER Common Use System DAVE JOHNSTON PacifiCorp System WAPA System M. MILE STEGALL LRS

  4. Regional Transmission System - New MONTANA ARVADA WYOMING 2009 2009 TONGUE RIVER 2009 SHERIDAN SPEARFISH 2009 CARR DRAW 2009 WYODAK RAPID CITY Y. CRK BUFFALO HUGHES Donkey Creek S. RC DC TIE B. CRK RENO OSAGE PUMPKIN BUTTES TECKLA HOT SPRINGS 2009 32 MVAr’s D-VAR 2010 (BH) YELLOWCAKE SPENCE S DAKOTA “DJ AREA” NEBRASKA CASPER Common Use System DAVE JOHNSTON Common Use System (new) PacifiCorp System M. MILE WAPA System STEGALL LRS

  5. Basin Electric Costs • Cost of Equity • Cost of Debt • General Plant Allocator • Capital Projects • Potential Future Facilities

  6. Basin Electric Costs • Cost of Equity – 10.80% • Cost of Debt • General Plant Allocator • Capital Projects • Potential Future Facilities

  7. Basin Electric Costs • Cost of Equity – 10.80% • Cost of Debt – 5.95%(2009); 6.08%(2010) • General Plant Allocator • Capital Projects • Potential Future Facilities

  8. Basin Electric Costs • Cost of Equity – 10.80% • Cost of Debt – 5.95%(2009); 6.08%(2010) • General Plant Allocator – GP1 per settlement • Capital Projects • Potential Future Facilities

  9. Basin Electric Costs • Cost of Equity – 10.80% • Cost of Debt – 5.95%(2009); 6.08%(2010) • General Plant Allocator – GP1 per settlement • Capital Projects – $82.9m  $87.6m • Potential Future Facilities

  10. Basin Electric Costs • Cost of Equity – 10.80% • Cost of Debt – 5.95%(2009); 6.08%(2010) • General Plant Allocator – GP1 per settlement • Capital Projects – $82.9m  $87.6m • Potential Future Facilities • Generation Interconnection Network Facilities • Other?

  11. Transmission Rate Case Schedule • FERC Filing – August 1, 2009 (July 31, 2009) • Effective Date – October 1, 2009 • Compliance Filing – After end of Calendar year 2010, prior to June 1, 2011

  12. Rate Impacts • Estimate Revenue Requirement of $18.23 million

  13. Rate Impacts • 2009 rate - $2.03 / kW-month • Black Hills $ 9.41 m • Basin Electric 13.33 m • PRECorp 1.30 m • Revenue Credits (0.20) m • Total 23.84 m • Usage – 980 MW • Rate – $2.03 / kW-Month

  14. Rate Impacts • 2010 rate - $2.38 / kW-month • Black Hills $ 9.41 m • Basin Electric 18.23 m  PRELIMINARY • PRECorp 1.30 m • Revenue Credits (0.20) m • Total 28.73 m • Usage – 1,005 MW  PRELIMINARY • Rate – $2.38 / kW-Month

  15. Discussion / Questions

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