Photovoltaic Greenhouses: Comparison of Optical and Thermal Behaviour for Energy Savings

Table 3

Monthly heating and cooling consumption (kWh) for soil-less tomato cultivated in PV and glass greenhouse located in Turin, with the difference (kWh) and the saving (variation percentage).

TURIN	Greenhouse		PV greenhouse		Difference		Variation %
Month	Heating	Cooling	Heating	Cooling	Heating	Cooling	Heating	Cooling
January	53486	0	48518	0	4968	0	9.29	0.00
February	36776	0	32449	0	4327	0	11.77	0.00
March	11457	0	9725	0	1732	0	15.12	0.00
April	1658	0	850	0	807	0	48.70	0.00
May	0	20942	0	9810	0	11132	0.00	53.16
June	0	42804	0	27087	0	15717	0.00	36.72
July	0	60019	0	40326	0	19693	0.00	32.81
August	0	43565	0	25239	0	18326	0.00	42.07
September	0	16009	0	5149	0	10861	0.00	67.84
October	1276	0	939	0	337	0	26.40	0.00
November	21960	0	19382	0	2578	0	11.74	0.00
December	51478	0	45713	0	5764	0	11.20	0.00