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Macroeconomic Rebound Effect from Energy Efficiency Policies at Global Level

This paper explores the rebound effect of energy efficiency policies on the global economy. It analyzes the direct and indirect effects of energy consumption gains, investments, and emissions, as well as their impact on key macroeconomic variables. The study concludes that energy efficiency policies can lead to economic growth, employment increase, and reduced energy demand and emissions.

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Macroeconomic Rebound Effect from Energy Efficiency Policies at Global Level

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  1. Macroeconomic Rebound Effect from the implementation of Energy Efficiency Policies at global level with E3MG Dr Athanasios Dagoumas Cambridge Centre for Climate Change Mitigation Research (4CMR) Black Sea Energy Policy Conference; 8-9 October 2008

  2. Introduction • E3MG is one of a suite of E3 models: • MDM-E3: Multisectoral Dynamic Model of the UK Economy, including energy-environment-economy (E3) interactions • E3ME: E3 Model of Europe • E3MG: E3 Model at a Global level • All follow the same overall principles in their economics, construction and operation

  3. E3MG theory and data • Econometric, dynamic, structural, post-Keynesian • Based on time series and cross-section data • Organized around a Social Accounting Matrix i.e. on accounting principles, e.g. System of National Accounts • Dynamic (behavioural equations with effects from previous outcomes: i.e. history matters) • Path dependency and emphasis on “history” rather than “equilibrium” • Forward-looking (projections annually or in 5 or 10 year steps) • Short-term and long-run solutions • Cointegration techniques identify long-run trends in 22 sets of equations • Structural: 42 industries, 19 energy users, 12 energy carriers • Hybrid (incorporates submodels e.g. Energy Technology Model) • Comprehensive (whole E3 system, all sectors, many policy instruments) • Open as regards economic policy, i.e. no assumptions of full employment, budget balance, or balance of payments equilibrium

  4. damage to health and buildings ECONOMY as in national accounts e.g. industrial emissions of SF6 funding R&D TECHNOLOGY specifications & costs pollution- abatement equipment feedback prices and activity low-carbon processes & products energy-saving equipment etc ENVIRONMENTAL EMISSIONS as in environmental statistics ENERGY as in energy statistics fuel use Engineering-Energy-Environment-Economy interactions

  5. Source: IEA/ETP2008 Energy Efficiency Policies • Considered no-regret options (low or negative cost): • Investments are offset from gains due to reduced energy consumption.

  6. Indirect Economy wide Macroeconomic Rebound Effect Rebound Effect • Rebound effect: energy consumption decrease through energy efficiency policies is offset by an increasing demand for energy, arising from energy price decrease • 3 types of rebound effects: • Direct • (e.g. decrease of oil consumption affects oil price and consequently oil consumption) • Indirect • (e.g. decrease of oil consumption affects electricity price and consequently electricity consumption) • Economy wide • (e.g. decrease of electricity consumption affects steel price and consequently steel production and its electricity consumption) :

  7. Modelling Macroeconomic Rebound Effect • Implement energy efficiency policies (IPCC 4AR, IEA WEO2006) • Energy consumption gains • Investments for such policies • Direct rebound effect (literature: 5-25% for different sectors) • Estimate macroeconomic + total rebound effect • Estimate effects on emissions • Estimate effects on key macroeconomic variables (GDP, consumers expenditure, employment, )

  8. Assumptions

  9. Results

  10. Effects of WEO2006 Energy Efficiency Policies 14

  11. Disaggregation of net energy savings

  12. Decomposing Rebound Effect • Rebound effect has 4 potential sources: • Direct rebound effect • Lowering of energy use and industrial costs • Higher imputed income for private consumers • Higher investments directly associated with the energy efficiency policies

  13. Conclusions • The total rebound effect is about 50% by 2030 • Direct is at the levels of 10% and the rest is the macroeconomic rebound effect • OECD rebound effect is less than that of non-OECD • Energy efficiency policies lead to economic growth and consequently to an increase in employment • Economic growth is attributed mainly to investments on energy efficiency projects. • Reduced energy demand and emissions are attributed mainly to lower energy use and industrial costs • Consumers expenditure is not affected significantly 20

  14. Conclusions – Key points • The analysis focuses to estimate the rebound effect of energy efficient policies and of their effects on the whole economy and the energy system. • The high values pf the rebound effects is explained from the modelling on historical data (econometrics) and the expected price responses. • Considering that a post-Kyoto target will require the application of energy savings globally, the rebound effect should be considered. • So, the energy savings should be accompanied from policies that lock-in the savings. Otherwise they will be partly offset. • Such policies demand changes on consumers behaviour. 21

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