The Social Home of the Municipality of Budapest for Mentally Disabled invested in a 64m2 solar collector system in 2004 to provide hot water for 200 residents. The system produces approximately 155 GJ of heat energy annually and reduces natural gas usage by around 10,000 cubic meters per year, saving an estimated €3,200 in costs. The automated system operates effectively with no additional personnel needed. There are plans to expand solar energy use and investigate other renewable options like wind or biomass.