78566
Heating demand in the winter and cooling demand ( air conditioners ) in the summer are what primarily drive the seasonal peaks in most regions .
 winter
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 winter