Bank Sarasin points out that a booming and steadily increasing levels of prosperity fuel rising global energy demand, thus the potential for improving energy efficiency is enormous. Bank Sarasin concludes that energy savings of more than 20% are possible up to 2020 without incurring high costs. The report explores market barriers such as a lack of information for consumers, a relatively low proportion of energy costs in consumers' budgets, higher initial investments and in some cases compromises on perceived product benefits. Market barriers imply a selective investment approach and the report indentifies attractive segments with significant investment opportunities?