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

Table 1

Climatic requirements of the tomato considered in this study.

Minimum biological	°C	6
Maximum biological	°C	30
Thermal sums	°C	1800–2000
Optimal substrate	°C	15–20
Light intensity for maximum opening stomata	Klux	10
Minimum light intensity for starting photosynthesis	Klux	2
Maximum light intensity for starting photosynthesis	Klux	20
Minimum relative humidity	%	56
Maximum relative humidity	%	92
Daily optimal humidity	%	67
Nightly optimal humidity	%	84