One crucial factor is that the efficiency of these new ACs can vary widely. "With rising incomes, air conditioner ownership will skyrocket, especially in the emerging world. While this will bring extra comfort and improve daily lives, it is essential that efficiency performance for ACs be prioritised. In an Efficient Cooling Scenario, which is compatible with the goals of the Paris Agreement, the IEA finds that through stringent minimum energy performance standards and other measures such as labelling, the average energy efficiency of the stock of ACs worldwide could more than double between now and 2050. This will require large investments in new power plants to meet peak power demand at night, which cannot be met with solar PV technology, it said.

Source: Economic Times May 15, 2018 10:07 UTC