Italian Residential Buildings: Economic Assessments for Biomass Boilers Plants

Table 18

Costs for energy consumption (Case 1 and Case 2).

Energy consumption before installing biomass boiler and solar collector
	Consumption (kWh/year)	Cost of methane (€/kWh)	Total (€/year)
Case 1
Heating + DHW	20899.8	0.093	2105.9
Case 2
Heating + DHW	12148.2	0.093	1129.78
Energy consumption after installing biomass boiler and solar collector
	Consumption (kWh/year)	Pellet cost (€/kWh)	Total (€/year)
Heating + DHW	12148.2	0.058	704