(1 + cos ϕ) The final Equation for fully shaded rooftop is [49]: (10) (11) (12) (13) qheat f lux = hr,PV TPV − Tsur f ace + hr,air Tair − Tsur f ace (14) The weather file of the area was added to EnergyPlus, which has hourly data for GHI, DHI, DNI, air...