Understanding energy balances: the IEA perspective

Transcription

1 Understanding energy balances: the IEA perspective Roberta Quadrelli, Head, Energy balances, emissions, efficiency, prices Energy Data Centre, IEA March 2017 ESCAP Workshop on Environment Statistics for East and North-East Asian countries

2 The International Energy Agency Mission: to ensure reliable, affordable and clean energy for its members and beyond Intergovernmental organisation founded in 1974, in response to oil disruptions Autonomous Agency of the OECD 29 Members; 2 Accession; 5 Association countries Worldwide engagement

3 World energy statistics: a key activity of the IEA

4 How does the IEA collect national data? 5 harmonised annual questionnaires from official sources (Members+) In available national format from official sources (most non-members) From secondary sources if needed (utilities, associations, trade reports; etc)

5 Main IEA data sources for your country Country China Hong Kong Mongolia Korea Russian Federation Main source National Bureau of Statistics Census and Statistics Department National Statistics Office Korea Energy Economics Institute Federal State Statistics Services (ROSSTAT) Several secondary sources also consulted for most countries

6 The IEA compiles data and elaborates balances based on internationally harmonised methodologies International Recommendations on Energy Statistics (IRES) Elaborated by UNSD through very wide consultation (Oslo City Group and InterEnerStat): huge harmonisation effort across partners Adopted by the UN Statistical Commission in 2011

7 Energy balance: a key output of energy data collection

8 The importance of energy balances: bringing all pieces of information together «An accounting framework for compilation of data on all energy products entering, exiting and used within the national territory of a given country during a reference period.» Source: International Recommendations on Energy Statistics, UNSD, 2011

9 Why do we develop energy balances? To understand overall energy use in country, e.g. - compute the total energy use - assess relative contribution of different sources in energy mix / different sectors in energy demand - compute efficiencies of various transformation processes (e.g. electricity generation) To estimate high-level indicators (e.g. self-sufficiency, energy intensity); and CO 2 emissions from fuel combustion To assess data completeness and check quality of the various energy commodity balances

10 How does an energy balance look like?

11 The energy balance matrix Can define total energy Columns present commodity balances for all products made comparable by converting to a common energy unit

12 Understanding the flows of energy Supply Transformation Rows present energy flows across the various products Final consumption Three main blocks of flows

13 1: Energy supply High-level information

14 2: Transformation and energy sector Transforming energy sources Input (coal) Output (electricity) The concept of efficiency = output / input

15 Give your opinion What would be a typical efficiency for a coal electricity plant? 35% 65% 85%

16 3: Final consumption Deliveries of energy products to all final consumers

17 Give your opinion by voting. What is the largest energy-consuming sector in the world? Residential Transport Industry

18 Where is energy used globally? Source: IEA World Energy Balances, 2016.And in your country?

19 Benefits of energy balances: some examples

20 Projecting energy demand across countries

21 Developing high-level indicators Coupling energy balances data with various macro-economic variables

22 Estimating CO 2 emissions from fuel combustion Based on energy balances and IPCC methodologies

23 And finally beyond energy balances: monitoring end-use energy efficiency.and in your country?