The basic principle of the greenhouse effect is that light from the sun hits the earth. Some of it is reflected out into space (because the atmosphere mostly le

The basic principle of the greenhouse effect is that light from the sun hits the earth. Some of it is reflected out into space (because the atmosphere mostly lets it, some of it is absorbed and converted into heat. The heat can be radiated as IR but IR tends to get trapped by the atmosphere. Solar panels are all black. So from a very nitpicky perspective, the energy used to power the A/C creates heat that is not radiated in the same way as, say, having a giant mirror on your roof would. The heat is also released locally rather than being aimed at the sky. But from an overall perspective you are correct, because the alternative to solar is just having a regular roof which will convert some of the light into heat without doing any useful work, and because you'd probably get your energy from some less clean source.