Energy-producing organelles are the

Cells responsible of making energy and performing respiration within the cell. Depending on what type of organism they are found at, they can be known as Mitochondria, if they are in animals; and if they are in plants, Chloroplasts.
Mitochondria create energy for the cell by breaking down sugars, fats, and other fuels consumed by the cell.
Chloroplasts, on the other hand, since they are found at plants, convert sunlight into energy.

Well, both latitude and intensity of light affect temperature because, the higher the light intensity, the higher the temperature and since latitude is the measure of how close you are to the equator, then the closer to the equator you are, the higher the temperature is.