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