There are many reports for the Model Y on Youtube on the range of the Model Y.
I think with the heat exchange for both AC and heating, and Tesla having been at this for almost 10 years, we can assume that the efficiency of the Model Y will be greater than the MachE.
It seems that on average it 3 miles per KWH. The battery is about 70 KWH so that is about 220 miles. This is "real world driving": 70 mph, hills with AC on. Keep in mind the advertised range is 316 miles, so there is a 30% loss in real world.
Let's assume the MachE is 90% as efficient as the Model Y: that means 2.7 miles per KWH: 98 KWH, but there is a reserve of 8% to 10%, so that brings it down to about 92 KWH. At 2.7 miles per KHW that is a range of 240/250 miles.