Case Study: nZEC - Energy refurbishment of 18 dwellings in Tzar Samuil Street, Sofia, Bulgaria

Source: http://www.powerhouseeurope.eu/nc/cases_resources/case_studies/single_view/?tx_phecasestudies_pi3%5Bid%5D=203&tx_phecasestudies_pi3%5Bdisplaytype%5D=map&cHash=