GST Implications for the Electricity Supply Industry in Tasmania June 2000
Total Page:16
File Type:pdf, Size:1020Kb
GST Implications for the Electricity Supply Industry in Tasmania Occasional Paper June 2000 iv Comments on the matters raised in this Paper should be directed to: Ms Heather Wilson Assistant Director Office of the Tasmanian Electricity Regulator GPO Box 770 HOBART TAS 7001 Telephone: 03 – 6233 5603 Facsimile: 03 – 6233 5666 Email: [email protected] Printed June 1999 Office of the Tasmanian Electricity Regulator Level 5, 111 Macquarie Street HOBART TAS 7000 AUSTRALIA ISBN 0724650199 Copyright © Office of the Tasmanian Electricity Regulator 2000 iii Table of Contents OVERVIEW ............................................................................................................................................................ v 1 INTRODUCTION...............................................................................................................................................1 1.1 BACKGROUND...................................................................................................................................................1 1.2 INDICATIVE ANALYSIS BY THE COMMONWEALTH TREASURY.......................................................................3 1.3 ESAA – ARTHUR ANDERSEN STUDY RESULTS ..............................................................................................3 1.3.1 ACCC Estimates ....................................................................................................................................5 1.3.2 Applicability to the Tasmanian Context...............................................................................................5 1.4 OTHER ISSUES...................................................................................................................................................6 1.4.1 GST and CPI-Linked Pricing................................................................................................................6 2 REGULATORY AND POLICY FRAMEWORK.........................................................................................9 2.1 ACCC GUIDELINES ..........................................................................................................................................9 2.1.1 Guidelines 1999.....................................................................................................................................9 2.1.2 Amendments to the 1999 Guidelines..................................................................................................10 2.1.3 Price Exploitation Regulatory Test....................................................................................................12 2.2 PRICING DETERMINATION ..............................................................................................................................12 2.3 OTHER POLICY CONSIDERATIONS..................................................................................................................13 2.4 REVIEW OF GST IMPLEMENTATION – AUDIT REQUIREMENTS ....................................................................13 2.5 ANALYSIS UNDERTAKEN BY THE ENTITIES ...................................................................................................14 3 HYDRO-ELECTRIC CORPORATION ESTIMATED IMPACT ON ENERGY PRICES...............15 3.1 BACKGROUND.................................................................................................................................................15 3.2 MONASH MODELLING....................................................................................................................................15 3.3 ASSUMPTIONS .................................................................................................................................................16 3.4 COMPARISON WITH OTHER GENERATORS.....................................................................................................18 3.5 COMPLIANCE PROCESS...................................................................................................................................18 3.6 ESTIMATED IMPACTS HYDRO TASMANIA......................................................................................................19 3.6.1 Recommended Pricing.........................................................................................................................19 3.7 CONCLUSION...................................................................................................................................................21 4 SYSTEM CONTROL.......................................................................................................................................23 4.1 BACKGROUND.................................................................................................................................................23 4.2 PRICING IMPACT .............................................................................................................................................23 4.2.1 Conclusion ...........................................................................................................................................24 5 TRANSEND ESTIMATED IMPACT ON TRANSMISSION PRICES..................................................25 5.1 METHODOLOGY..............................................................................................................................................25 5.1.1 Modelling Objective ............................................................................................................................25 5.1.2 Econtech Methodology........................................................................................................................25 5.2 MONITORING TO PASS ON ACTUAL COSTS .....................................................................................................27 5.3 ALTERNATIVE MODELLING OUTCOMES .........................................................................................................28 5.4 ESTIMATED IMPACTS......................................................................................................................................29 5.4.1 Main Findings at a Glance .................................................................................................................29 5.4.2 Major Costing Impacts on Transend..................................................................................................30 iv 6 AURORA – ESTIMATED IMPACT ON RETAIL ELECTRICITY AND OTHER SERVICES......33 6.1 ISSUES .............................................................................................................................................................33 6.1.1 Number of pass through rates for each service category .................................................................34 6.2 MODELLING APPROACH AND KEY ASSUMPTIONS........................................................................................35 6.3 ESTIMATED IMPACTS AURORA ENERGY........................................................................................................35 6.3.1 Electricity Prices:................................................................................................................................36 6.3.2 Other Services......................................................................................................................................38 6.3.3 Summary...............................................................................................................................................39 6.4 COMPARISON WITH OTHER MODELS..............................................................................................................39 6.5 NEXT STEPS ....................................................................................................................................................40 7 REGULATOR’S ASSESSMENT...................................................................................................................41 7.1 ISSUES .............................................................................................................................................................41 7.1.1 Potential Differences between a hydro and thermal based ESI. ......................................................41 7.1.2 Comparative Estimates .......................................................................................................................41 7.1.3 Comparison with other Jurisdictions.................................................................................................42 7.1.4 Limitations of Modelling.....................................................................................................................42 7.1.5 Savings arising from the New Tax System in Tasmania ...................................................................42 7.2 SUMMARY.......................................................................................................................................................44 7.3 FUTURE ACTION .............................................................................................................................................45 v Overview The Terms of Reference for the 1999 Electricity Supply Industry Pricing Policies Investigation required the Regulator to set maximum prices for the three years from 1 January 2000 for certain electricity services, being: § electricity generation on mainland Tasmania for tariff sales; § system control functions and ancillary services; § transmission