Table 1.

Comparison of Light Conditions (PAR) and Electricity Used for Cooling (kWh) Between Apollo and Hades.

Time PeriodMean PARt-statistickWh/dayt-statistic
ApolloHadesApolloHades
April609.24153.0712.12z1.330.28  7.86z
May655.18  57.0518.75z2.560.65  7.87z
June684.71  50.1122.92z4.711.9310.69z
July650.96  41.5529.06z4.401.8015.18z
August543.44  50.1214.89z3.611.47  8.15z
September 1–17506.87  47.8914.07z3.331.45  6.59z
  • zt-value statistically significant at 0.01 level.