workshop on energy statistics, china september 2012 electricity and heat statistics 1
TRANSCRIPT
Workshop on Energy Statistics, China
September 2012
Electricity and Heat Statistics
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Introduction
Overview of electricity in Canada• Understanding the Canadian context
Highlights of electricity data Electricity data collection:
• Capacity• Electricity generation• Co-generation and heat• Consumption• Collection issues and challenges
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Electricity: the Canadian Context
Canada is a major global producer of electricity Variety of generation methods across the country Canada also a large consumer Trade links are mostly north-south with USA
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Map of Canada – electricity production
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Issues faced by the electricity sector
Aging infrastructure – security of supply Trade markets – stability, diversification New, emerging sources (wind, tidal, solar) Environmental concerns Deregulation of the marketplace – impact on
prices
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Electricity Statistics - Overview
6+ surveys Monthly, quarterly, annual Mail-out/mail-back Census surveys, above threshold Mandatory response Sources: direct from respondents, through
administrative sources Cover capacity, generation, demand, finances
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Measuring Capacity
Annual electric power generating stations survey Covers utilities and companies with a generating
capacity above 500 KW Frame based on input from provincial licensing
boards, other surveys, industry research Objectives: to establish updated frame for other
surveys; to monitor capacity utilization rates
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Measuring Electricity Generation
Monthly Electricity Survey:• Volumes generated by utilities and industry • Imports, exports, inter-provincial transactions
Annual Electricity Supply and Disposition Survey:• Volumes generated by utilities and industry• Includes co-generation
Co-generation and heat• Variables included in other surveys• But challenges and issues with quality
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Measuring Electricity Consumption
Industrial consumption of energy:• Sample of establishments, by industry and geography• Includes electricity consumption and generation
Annual electricity supply and disposition:• Track sales to consumers by sector
Quarterly residential survey:• Volumes & values sold by utilities to residential sector• Proxy for residential consumption
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Other Electricity Data
Electric utilities financial reports (annual)• Balance sheets: assets, liabilities, equity• Report taxes, employees, wages, salaries, operating revenues
and expenses• To feed national accounts
Electric Power Thermal Generating Station Fuel Consumption (annual)• Quantity, cost, heat content of fuels consumed• For electricity utilities and industry estimates
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Ensuring Quality
Follow up for partial or non-response Compare data for same respondent
• From same time period last year• From other electricity surveys
Balance inter-provincial transactions Compare with data from other sources Compare with other indicators to match trends
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Collection Issues and Challenges
Multiple surveys = respondent burden, conflicting data sets
Deregulation of electricity markets makes it more difficult to track production to consumption
Consumption data based on sellers, not users Will have to move to electronic collection Proliferation of small electricity producers
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Thank you!
Andy Kohut, DirectorManufacturing and Energy DivisionStatistics CanadaSection B-8, 11th Floor, Jean Talon BuildingOttawa, Ontario Canada K1A 0T6
Telephone: 613-951-5858E-mail: [email protected]