Cost of Service Regulation Wayne Taylor W. K. T AYLOR C ONSULTING L TD. June 22, 2015
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Cost of Service Regulation l Revenue Requirement Applications (Phase I) Revenue Requirement Forecast Revenue at Existing Rates Required Average Rate Increase l Rate Design Applications (Phase II) Rate Classes Cost of Service Study Rate Rebalancing and Rate Design Terms and Conditions of Service
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Typical Revenue Requirement Components l Capital-Related Costs Depreciation Interest Return on Equity Income Tax l Operating Costs Labour Materials and Supplies Fuel and Purchased Power Property Taxes
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Capital Expenditures and Additions
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Rate Base
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Rate Base
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Revenue Requirements
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Cost of Capital
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Cost of Capital
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Capital-Related Revenue Requirements
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Total Revenue Requirements
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Capital Cost Allowance
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Future Income Tax Account
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Future versus Flow-Through Income Taxes
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Future Income Tax Account
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Total Revenue Requirements – Flow-Through
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Comparison of Future and Flow-Through
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Depreciation Systems l Method of Allocation Straight Line Accelerated (e.g. Declining Balance) Decelerated (e.g. Sinking Fund) l Group Procedure Average Life Procedure Equal Life Procedure l Adjustment Technique Whole Life Remaining Life
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Revenue Requirements – Different Lives
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Impact of Including CWIP in Rate Base
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Impact of Including CWIP in Rate Base
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Impact of Including CWIP in Rate Base
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Impact of Including CWIP in Rate Base
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Impact of Including CWIP in Rate Base
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Required Average Rate Increase
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Actual Net Income
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Typical Phase I Studies l Load and Revenue Forecast Study l Depreciation Study l Lead-Lag Study l Cost of Capital Studies l Compensation Surveys l Corporate Cost Allocation Study l Capital Overhead Study
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. BC Hydro Revenue Requirements
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. BC Hydro CWIP
CAMPUT 2015 Energy Regulation Course W.K. T AYLOR C ONSULTING L TD. Summary l Carefully test the capital forecast. Capital is expensive; once in rate base, a capital project impacts the revenue requirement for the life of the facility. l The choice of income tax method and CWIP treatment will shift costs between generations of customers, but impacts life-time revenue requirements and can impact the cost of raising capital. l Also carefully test the revenue forecast. l Watch the regulatory account and CWIP balances. l Study the financial schedules.