data compilation issues for electricity and heat
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Data Compilation Issues for Electricity and Heat. Energy Statistics Workshop Beijing, China, Sept. 2012 Pierre Boileau International Energy Agency. OVERVIEW. Global trends in electricity production 1973 – 2009 Electricity and Heat Data Compilation Issues Data consistency checks. - PowerPoint PPT PresentationTRANSCRIPT
© OECD/IEA 2010
Data Compilation Issues for Electricity and Heat
Energy Statistics WorkshopBeijing, China, Sept. 2012
Pierre BoileauInternational Energy Agency
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Global trends in electricity production 1973 – 2009 Electricity and Heat Data Compilation Issues Data consistency checks
OVERVIEW
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Global Trends in Electricity Production 1973 - 2009
1973 2009
Electricity usage patterns have changed over 35 years
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1973
6,115 TWh
2009
20,055 TWh
Global electricity generation more than triples in 36 years
Global Trends in Electricity Production
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WORLD FUEL SHARES OF ELECTRICITY1973
6,115 TWh
2009
20,181 TWh
Coal remains the major fuel source for electricity despite the increased shares from other sources
≈
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ELECTRICITY AND HEAT SUPPLY & DEMAND CHAIN
GrossProduction
GrossProduction
Own UseOwn Use
Total ConsumptionTotal ConsumptionNetProduction
NetProduction
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Supply Consumption
Energy SectorEnergy Sector
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ELECTRICITY AND HEAT STATISTICS
GrossProduction
GrossProduction
Own UseOwn Use
Total ConsumptionTotal ConsumptionNetProduction
NetProduction
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Energy SectorEnergy Sector
TABLE 1 - Gross electricity and heat production
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Electricity and Heat Production
Gross Electricity - the sum of the electrical energy produced by all of the generating sets (including pumped storage) measured at the output terminals of the main generators.
Gross Heat - is the heat produced by the installation, including the heat used by the installation’s auxiliaries which use a hot fluid (for activities such as space heating) and losses in the installation/network heat exchanges, as well as heat from chemical processes used as a primary energy form.
Gross HeatGross Heat
Gross ElectricityGross Electricity
Plant Boundary
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WORLD FUEL SHARES OF ELECTRICITY1973
6,115 TWh
2009
20,181 TWh
68.4%
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ELECTRICITY AND HEAT STATISTICS
GrossProduction
GrossProduction
Own UseOwn Use
Total ConsumptionTotal ConsumptionNetProduction
NetProduction
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Energy SectorEnergy Sector
Gross electricity and heat production
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GROSS ELECTRICITY AND HEAT PRODUCTION FROM COMBUSTIBLE FUELS
Coal and coal products
Oil
Natural gas
Biofuels and wastes
Combustible Fuels
Combustible Fuels
Inputs Gross Outputs
Gross HeatGross Heat
Gross ElectricityGross Electricity
Report in both
physical units
and TJ = average
NCV for the fuels
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ELECTRICITY AND HEAT STATISTICS
GrossProduction
GrossProduction
Own UseOwn Use
Total ConsumptionTotal ConsumptionNetProduction
NetProduction
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Energy SectorEnergy Sector
Net electricity and heat production
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Electricity and Heat Production
Gross HeatGross Heat
Gross ElectricityGross Electricity
Plant Boundary
Net
Net Electricity the gross electricity production
Net Heat Is the heat supplied to the distribution system as determined from measurements of the outgoing and
return flows
less the electrical energy absorbed by the generating auxiliaries and the losses in the main generator transformers.
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Gross Electricity - the sum of the electrical energy produced by all of the generating sets (including pumped storage) measured at the output terminals of the main generators.
Gross Heat - is the heat produced by the installation,
Net Electricity the gross electricity production
Net Heat Is the heat supplied to the distribution system as determined from measurements of the outgoing and
return flows
Gross production - ? = Net production Own Use
Electricity and Heat Production
less the electrical energy absorbed by the generating auxiliaries and the losses in the main generator transformers.
including the heat used by the installation’s auxiliaries which use a hot fluid (for activities such as space heating) and losses in the installation/network heat exchanges, as well as heat from chemical processes used as a primary energy form.
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Electricity and Heat ProductionGross Electricity – all the electricity producedGross Heat – all the heat produced
Own Use – amount consumed to support the operations of the plant
Net Electricity - is the electricity sent to the grid Net Heat – refers to heat sold to third parties
Gross
Plant Boundary
Own Use Net
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Electricity and Heat Production
Gross
Plant Boundary
Own Use Net
Gross production - ? = Net production Own Use
• Own use of heat used by the autoproducer plant is not collected• Only heat sold to third parties is reported Gross Heat = Net HeatAutoproducers
HEAT:
Autoproducer CHP and Heat Plants
Gross Heat production = Net Heat production
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DIFFERENCE BETWEEN ELECTRICITY AND HEAT
Electricity Only CHP Heat Only
Main Activity Producer
Report all production and all fuel used
Report all electricity and heat produced and all fuel used
Report all heat produced and all fuel used
AutoproducerReport all electricity produced and heat sold with corresponding fuel used
Report heat sold and corresponding fuel used
Electricity Only CHP Heat Only
Main Activity Producer
Autoproducer
Gross Electricity production - = Net Electricity production Own Use
Gross Heat production = Net Heat production
Gross Heat production - = Net Heat production Own Use
Gross Electricity production - = Net Electricity production Own Use
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ELECTRICITY AND HEAT STATISTICS
GrossProduction
GrossProduction
Own UseOwn Use
Total Consumption
Total Consumption
NetProduction
NetProduction
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Energy SectorEnergy Sector
Net electricity and heat production
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ELECTRICITY AND HEAT STATISTICS
GrossProduction
GrossProduction
Own UseOwn Use
Total Consumption
Total Consumption
NetProduction
NetProduction
Typically about 15% of supply for Heat
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Energy SectorEnergy Sector
Table 2: Net electricity and heat production
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ELECTRICITY AND HEAT STATISTICS
GrossProduction
GrossProduction
Own UseOwn Use
Total ConsumptionTotal ConsumptionNetProduction
NetProduction
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Energy SectorEnergy Sector
Net electricity and heat production by Autoproducer
IndustryIndustry
ResidentialCommercialAgriculture
ResidentialCommercialAgriculture
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NET ELECTRICITY PRODUCTIONBY AUTOPRODUCERS
2 793
1 217
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ELECTRICITY AND HEAT STATISTICS
GrossProduction
GrossProduction
Own UseOwn Use
Total ConsumptionTotal ConsumptionNetProduction
NetProduction
ImportsImports
ExportsExports
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Energy SectorEnergy Sector
Trade
IndustryIndustry
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IMPORTS AND EXPORTS
Reported differently from trade of most other fuels:
Physical amounts (not final destination)Equals amounts crossing borders either on land or underwater
Example:Physical electricity trade data for Spain is accounted for only with:
FrancePortugalMorocco (underwater cable)X not Germany
Exercise
€
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ELECTRICITY AND HEAT STATISTICS
GrossProduction
GrossProduction
IndustryIndustry
ResidentialCommercialAgriculture
ResidentialCommercialAgriculture
Own UseOwn Use
Total Consumption
Total Consumption
NetProduction
NetProduction
ImportsImports
ExportsExports
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Energy SectorEnergy Sector
Supply ConsumptionEnergy and Industry Sector Consumption (Table 4)
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ELECTRICITY AND HEAT STATISTICS
GrossProduction
GrossProduction
TransportTransport
Energy SectorEnergy Sector
IndustryIndustry
ResidentialCommercialAgriculture
ResidentialCommercialAgriculture
Own UseOwn Use
NetProduction
NetProduction
ImportsImports
ExportsExports
Used for Heat Pumps andElectric Boilers producing Heat Sold
Used for Heat Pumps andElectric Boilers producing Heat Sold
Used for Pumped Storage
Used for Pumped Storage
Transmission and Distribution Losses
Transmission and Distribution Losses
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Electricity/Heat for further Electricity/Heat production
Electricity/Heat for further Electricity/Heat production
Supply Consumption
Total ConsumptionTotal Consumption
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ELECTRICITY & HEAT OVERALL PICTURE
Table 3Electricityand HeatSupply
and Consumption
Electricityand HeatSupply
and Consumption
Combustible fuel Inputs from other
annual questionnaires
Combustible fuel Inputs from other
annual questionnaires
Table 7bNet Maximum
Electrical Capacity of Combustible Fuels
Net Maximum Electrical Capacity of
Combustible Fuels
Table 8Imports by
Origin / Exports by Destination
Imports by Origin / Exports by Destination
Total Imports
Total Exports
Table 2Net ProductionNet Production
Table 5Net Production by
Autoproducers
Net Production by Autoproducers
Table 7aNet Maximum
Electrical Capacity and Peak Load
Net Maximum Electrical Capacity and
Peak Load Utilisation rate
Total Autoproducer
Total NetProduction
Total Industry
Table 4Consumption in
Industry and Energy Sectors
Consumption in Industry and
Energy Sectors
Total Energy Sector
Sector
Total GrossTable 1
Gross Production
Gross Production Table 6
Gross Production from
Combustible Fuels
Gross Production from
Combustible Fuels
Inputs to Gross Production
Production Total Combustible
Fuels
Total Combustible
\Fuels
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ELECTRICITY AND HEAT STATISTICS
GrossProduction
GrossProduction
Own UseOwn Use
Total ConsumptionTotal Consumption
Net CapacitiesNet Capacities
NetProduction
NetProduction
HydroHydro
SolarSolar
Tide, Wave or Ocean
Tide, Wave or Ocean
OtherOther
Combustible Fuels
Combustible Fuels
GeothermalGeothermal
NuclearNuclear
Heat from chem. proc.
Heat from chem. proc.
Energy SectorEnergy Sector
Technical Characteristics
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DATA VERIFICATION Internal Consistency – (checks between tables internally)
External Consistency (comparison with other questionnaires)
Data Relationship Analysis
Ratio of gross to net generation
Ranges of calorific values
Capacity factors
Distribution losses vs. energy supplied
Own use vs. total production
Efficiencies
Fluctuations in time series data rationale?
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ENERGY EFFICIENCY INDICATORS
• Main activity power plant efficiency
• CHP power plant efficiency
• Share of generation from renewable fuels
• Share of generation from fossil fuels
• Electricity/GDP ratio
• Electricity per capita
