>>The new lights draw approximately 310 kilowatts of energy compared with the 1,240 kilowatts required by the old system, a savings of about 75%.
That difference represents a savings of about 265 tons of air conditioning, assuming they need to run mechanical refrigeration vs. just ventilation with cool outside air. Which is probably the case for any number of games in AZ. Your home unit is typically about 3 tons, for comparison.
The energy savings in not having to run that much air conditioning is probably around 1/3 of the direct lighting kW savings, so around another 310 kW saved on top of the 930 in lighting operation saved.
The energy savings in not having to run that much air conditioning is probably around 1/3 of the direct lighting kW savings
. . . . . . .
I would have expected it takes more than a kilowatthour of energy to remove a kilowatt hour of heat.