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On a global scale, buildings (both residential and commercial) account for 35% to 40% of total final energy consumption Navigant Research forecasts that global revenue for energy efficiency commercial building retrofits will grow from $68.2 billion in 2014 to $127.5 billion in 2023. This Navigant Research report, “Energy Efficiency Retrofits for Commercial and Public Buildings,” examines the global market opportunity for energy efficiency retrofits in eight different commercial and public building types. The report analyzes the key market and technology issues related to energy efficiency retrofits.