I wonder how much it would matter now since a huge variety of residential heat pumps (split, whole house, a/c+Heat, A/c +hot water, air, water, geothermal, etc) are available and rapidly improving.
Where I am Fujitsu alone has five variants of split, air, A/C +hot water all for immediate delivery, all plug replaceable with existing Fujitsu split a/c only needed change is hot water/heated pool connections. I cannot count all the others from multiple countries with many variants.
Were i to have Tesla Powerwalls and heat pump available I'd be strongly inclined to buy them, even if more expensive. But...they are not.
The opportunity globally for Tesla Energy, including heat pump, would be huge, albeit difficult to quantify as competition proliferates. Now that Huawei has entered residential solar and HVAC markets in many countries in addition to their commercial/utility level products we can expect even more virulent competition, and probably price competition beyond the already amazing solar panel/power controller/inverter competition.
All this is good for the world and for The Mission, but for TSLA there si serious incentive to grow much more readily and manufacture, especially TE, more widely.
Every time some fool argues that Tesla is demand limited and price reductions are inevitably margin limiting I cringe. These 'pundits' are truly clueless about the worldwide transitions to sustainable energy. In part that is because much of the progress is supporting new growth more than it is replacement, so the data seem less significant. Part of it is ignorance. Part of it is geocentric or ethnocentric bias. Together those all make it easy to dismiss what are sometimes politically motivated ignorant of major competitors such as Huawei in some countries and even Tesla in some circles even in the US.
When we then consider the astounding level of FUD and the restless onslaught of the classic opponents of renewables it becomes even more obvious how myopic many of us, even here on TMC can be. It is very difficult to ignore the many attacks on both Tesla and the CEO, especially when the subject of this ire begin to react in hostility.
It is highly desirable to look as dispassionately as possible at the world demand for BEV of every type and class. Even more it is desirable to look dispassionately at global demand for every single part of energy generation, storage and distribution everywhere! Even grid services are in massive demand, just as much as are speakers to help intermediate those flections in grid sources and uses. The grids themselves are obsolescent to obsolete is all the North America all of Europe and virtually everywhere else. Right now the only country that is mobilizing aggressively for all this is China.
In much of the world politicians and business people bemoan Chinese dominance. Rather than compete, the response is to restrict the competitors. Were the non-Chinese to aggressively develop more efficient high voltage grids, better distributed load management and all the rest the world would be better off.
Tesla, let us remember, talked about all this as long ago as 2011, when J B Straubel talking over and over about the need and Elon Musk echoed that with actual deliveries, most notable the Hornsdale Power Reserve. Tesla Energy, by developing and deploying the Autobidder, set off the present day rush to grid stability and energy source variations.
So, for all of us, please stop this idiotic and absurd notion of demand-limited. That is untrue! It is true that Tesla has supply and destination imbalances, both driven by distribution narrowness (even in California!) and logistics/production narrowness. The future of Tesla si unquestionably more diverse in product lines production and distribution.
In the meantime, every time we look at a drone video from China, Germany or the US we see continuous repaid expansion and evolution. Each time we examine a Tesla product we see the same rapid evolution.
Costs per unit keep going down while quality and features rise. From time to time something goes awry so there si some type of temporary setback in, for example, Autopilot/FSD.windshiled wipers. Even, sometimes, Tesla realizes they cannot do everything themselves so buy, say, batteries/cells from everyone competent, solar panels from those who do then better/cheaper.
I look at all that and am amazed and redouble on HODL. In the meantime, I'll take delivery on my fourth new Tesla car next week.
Without question I'm quite impressed with BYD, too, even though none of their vehicles appeal to me. OTOH, on my street alone there are already BYD cars, mostly Dolphins. a neighbor just replaced a BMW with one of those. That, I don't really understand, but...it seems certain that I'll become a stationary storage customer of BYD next month. That one is sad; I'd pay a serious premium for Tesla Powerwalls. Even my installer laments that Powerwalls are not here in Brazil, he wants them for his own projects too.
When people are making suboptimal choices because they cannot buy Tesla how can any rational person really think they are demand-limited?
HODL and beg for more factories in more countries to supply enormous pent-up demand where no official Tesla has gone before, although lots of TSLA has been going enthusiastically.