"Framework Agreement For The Design, Supply, Installation And Warranty Maintenance Of Photovoltaic Systems For Own Consumption Under The Project "For Cleaner Air In The Municipality Of Pernik, By Replacing Solid Fuel Heating Devices With Ecological Alternatives", Financed Under Procedure No. Bg16Ffpr002-5.002 "For Cleaner Air!" (2) Under Priority 5 "Air" Of The Program "Environment" 2021-2027.