Question: does lower resistance mean less power consumption?

Hi again,

I just posted a question the other day about batteries and I have one more. If I vape at .5 ohms, won't that require less energy to heat up than, say, a 1 ohm coil, therefore making my battery last longer? I've heard people say sub-ohm vaping uses more power, but it seems like the higher the resistance the more power would be required to heat the coil.