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Those numbers are just the heat pump. In general, the heat pump runs 30 to 50% of my energy consumption for those 3 months of heating.

Another data point. I am a little west of Sacramento. We remodeled a 2,300 square foot single story house and insulated it as well as we could (R15 in the walls, R60 in the attic). We went with a 5 zone Mitsubishi heat pump system and have been happy with it so far. It has no problem heating...

Not OP, but my Mitsubishi heat pump (MXZ-8C48NA2, 54,000 BTU @ 47°F) peaks at 6.5 kW when I call on all 5 zones. The average peak with just the largest zone active is closer to 3.25 kW. Highest peak since I started heating: A more "normal" day. though outside highs have been cooler (mid 50s)...

Good idea. I took a day and heated the whole house rather than just the public areas. The difference was around 40%, 14kWh vs 10kWh. Of course, the inside did not start at the exact same temperatures and the outside was not exactly the same, but they were close. Interestingly enough, we did...

I don't have stats on the refrigerant in my 5 zone mini-split system, but I have a 1.5 ton ducted unit in the public areas. In the summer, when the attic was around 110°F, I discovered that in fan-only mode, the air coming out of the vents was 2°F warmer than the air going in. So not only does...

I did. It's a 5 zone system with a ceiling cassettes in each of the 4 bedrooms, and a 1.5 ton ducted unit that covers all the public areas. I love being able to heat/cool only a single room as required, but there are some downsides, as mentioned by others above. One really interesting thing we...

An excellent question. I do not remember the installer talking about auxiliary heat, and the best I can figure, it does not have it, and none of the Mitsubishi thermostats mention auxiliary heat. My outdoor unit is a MXZ-8C48NA2 and I have a 1.5 ton ducted system (MSVZKP18NA) and 4x...

tl;dr 6-10 kWh per day to conservatively heat a mid-sized, well insulated house with a heat pump, estimated 15 to 20 to heat to 72. I have a 7.2 kW system in the Sacramento region with south facing panels, but some late afternoon shading from trees. The house is recently remodeled so good...

I don't have frequency for this event, but I do have graphs of a power outage and the corresponding discharge/charge cycle. The first image is for the full day. The blue line at the top is the Powerwall charge % (right axis), the orange line is the solar output, and the yellow line is Powerwall...