Estimation of energy consumption for air-conditioning of residences

Simplified equations are established to estimate the energy consumption for the heating and cooling of residences, with the coefficients like air-conditioning area rate,  air-conditioning-hour rate,  etc..  To determine these coefficients, a detached house model is supposed. The air-conditioning load of the house in different regions is calculated with a thermal performance simulation program called the PSSP. With the simplified equations, the primary energy consumption in the future is estimated. The energy consumption for the heating and cooling of residences will increase further in the next century with the increases of floor area of residences, the percentage of air-conditioned floor area, and the air-conditioning hours.