This report, 'energy efficiency: lessons learned from success stories' is designed to identify energy efficiency policies that were implemented in countries that successfully decreased their energy intensity. 

The study analyzes the energy efficiency policies in seven successful European Union countries: Denmark, Germany, Ireland, Lithuania, Poland, Romania and Sweden.

The country case studies indicate that policy implementation evolves, reflecting such issues as institutional capacity and affordability. 

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This report introduces the National Adaptive Capacity (NAC) framework, a tool to help governments bring institutional capacity development into their adaptation planning processes. The NAC framework enables its users to systematically assess institutional strengths and weaknesses that may help or hinder adaptation. National adaptation plans may then be better designed to make best use of strengths or remedy weaknesses. The report describes three pilot assessments conducted using the NAC framework in Bolivia, Ireland and Nepal.