Accelerating the renovation of the Bulgarian building stock-BPIE

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Accelerating the renovation of the Bulgarian building stock-BPIE

full cover BG report 2016The study reaffirms that deep retrofitting to high energy efficiency classes is economically more beneficial than “shallow” renovation. It goes further by supporting the concept of “step-by-step” renovation, leading ultimately to a class A or nearly Zero-Energy Building. Such a phased implementation would prevent the “lock-in” effect of shallow renovations, which might deliver “quick wins” in terms of energy saving, but ultimately hamper the achievement of the full potential for economic, social and environmental benefits.