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GSR 2015

114 06 ENERGY EFFICIENCY: RENEWABLE ENERGY’S TWIN PILLAR Source: See Endnote 4 for this section. Figure 37. Global Energy Intensity, 1990–2013Figure 37. Global Energy Intensity, 1990–2013 Compound Average Annual Change (%) -1.9% -1.7% -0.6% -1.3% -1.5% -1.3% -1.0% +1.1% toe / USD 1,000 0.25 0.20 0.15 0.246 0.184 201320102005200019951990 CIS World total Pacific Asia Africa Middle East Europe North America Latin America -1.25% 1990-2013 Energy intensity (i.e., primary energy consumption per unit of economic output) is typically used as a proxy for energy efficiency in macro-level analyses. This is due to the lack of an internationally agreed-upon high-level indicator for measuring energy efficiency.3 (p See Sidebar 10.) Energy intensity at the global level decreased at a compounded annual rate averaging about 1.25% between 1990 and 2013, and most world regions achieved improvements in aggregated energy intensity during this period.4 (p See Figure 37.) The most significant reductions in energy intensity were seen in the Commonwealth of Independent States (CIS) region, North America, and Europe; however, it is likely that structural changes in these economies contributed to reduced energy intensity. The Middle East is the only world region that experienced an increase in overall energy intensity.5 Some countries use energy more efficiently than others (in some cases by substantial margins), and potential savings vary greatly across countries and regions. Nevertheless, in all countries and economic sectors, improvements in energy efficiency are possible.6 The subsections that follow discuss the status, trends, and developments related to energy efficiency in buildings and appliances, transport, and industry. Each of these sectors accounts for approximately one-third of global final energy demand. The remaining text covers the current status of policies to advance energy efficiency and synergies between energy efficiency and renewable energy. While this section focuses on some emerging technologies within each sector and recent policy developments, it is not intended to be comprehensive. In recognition of the important linkages between energy efficiency and the advancement of renewable energy, this section of the Renewables 2015 Global Status Report marks the first of what will be an annual chapter on the subject.

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