Program for encouragement the use of Renewable Energy Sources – RES, according to the specificity to the Municipality of Trjavna - 2005 Program for encouragement the use of Renewable Energy Sources – RES, according to the specificity to the Municipality of Petrich - 2006 Project executed jointly with the “Technical University – Sofia – Technologies” EOOD for energy audits performance of schools, kindergartens and a community centre in the Municipality of Triavna – 2006 Project executed jointly with the “Technical University – Sofia – Technologies” EOOD for preliminary study of the energy systems in “BULYARD – Shipbuilding industry” AD, for their energy efficiency assessment and determination of the prior decisions for the energy costs reduction of the company - 2006