- Heating season 2004-2005, Government of RA, “Urban Heating Project” of the World Bank (January-May 2005)
- Heating season 2006-2007, Armenia Renewable Resources and Energy Efficiency Fund (RREE) (March-June 2007)
- Heating season 2008-2009, Armenia Renewable Resources and Energy Efficiency Fund (RREE) (April-September 2009)
- Heating season 2009-2010, UNDP Armenia (July-December 2010)
- Heating season 2010-2011, Armenia Renewable Resources and Energy Efficiency Fund (RREE) (April-May 2011)