No one is going to think your solar/monitoring/etc tech is a great improvement. People barely consider actual solar to be a vast improvement.
Running cat6a to each room from a central location is about the only thing that would be helpful. Some areas will be good locations to also run hdmi, coax, and speaker wire.
Weather monitoring isn’t special, you can get a station for a few hundred that is wireless and easy to use.
Ducting a closet never makes sense since it heats up a lot more than the rest of the house. You would need to run dedicated hvac to it, or vent a door into the living space. Or just use low-power devices.
Heck, owning a home for only 3 years barely makes sense. Is it worth the hassle over renting? Will the market be down when you want to move?