iPlug wrote: ↑
Sat Nov 21, 2020 8:06 am
Heat pump is a nice addition and included in all trims, including the lowest SR+ trim, so a nice upgrade there.
Heat pump is indeed the heart of the heating/cooling system, but it is much more than just a heat pump. It is a heat pump integrated into an Octovalve distribution scheme. Judging by the jumps in MPGe in different models it has improved overall annual efficiency by ~10 - 15% using the MCT EPA testing scheme.
It will be *very* interesting to see how well the system mitigates the winter efficiency penalty under different driving scenarios. I am most interested in 200+ mile driving since it matters most when the looming question is getting to the next Supercharger.
As an aside, I had my first 'range anxiety' episode a few weeks ago. My wife and I planned a day trip to check out a wind farm going up about 80 miles from home. I forgot to charge overnight so we stopped at the Supercharger before heading out of town. I miscalculated the range needed due to a swift headwind on the way home (irony, that !).My choices were to either spend time at an RV park where I was, or head the wrong way ~ 40 miles to a Supercharger. I chose the Supercharger but the extra 2 hours needed was about the same either way.
Not a big deal, but it did occur to me that EV owners who do not know how to take winds into account are vulnerable to range mishaps. And I'm more sympathetic nowadays to the opinion that 400 mile EPA mile range is a good target, unless DC charging is readily available.