Solar-powered shed-turned-office supporting air-conditioner

[bcroe]

If you plan to run summer and winter, chose carefully a mini split with
the outside temp range to cover your location. And mount it higher
than your snow acumulation. That is what is operating here for 4
winters. Here the primary burden is heating when the outdoors are
well below zero F, AC is so easy, that half my capacity is turned off in
summer. But with all your equipment helping winter heat, AC might be
the bigger problem. Figure your heat loads. You might look at a way
to ventilate the equipment directly outside in summer, instead of
loading down your AC.

The latest lines here are aluminum triplex (4 conductor available) of
direct burial type, it must be 2 gauges bigger to match copper loss
performance, but even then might be only 1/3 the cost. I have a trencher
for the required 2 foot depth, but usually it can be rented.

More panels, sure put them up with a grid tie inverter at the shed, with
agreement of PoCo. Get the power, no battery problems.
good luck, Bruce Roe

[yi2020]

The shed is in my backyard, about 100-150 ft away from the meter. It may be cheaper to have the shed connected to the house (am getting a quote in parallel). But, then I'm not using the shed's roof space to generate electricity, and instead am paying for it from the power company. (the house has its own solar setup too, but it breaks even on an annual basis on net metering)

From a cost perspective, the solar option will likely be better in the long term.

[bcroe]

There are buried cables bringing power up to 750 feet from my meter,
at 240VAC losses are controlled, it works summer and winter, sun or no
sun, no maintenance, and it is a far more economical system than trying
to run off grid solar. How far away are you? Bruce Roe

[SunEagle]

Looks like you plan to spend a lot of money. I hope you have the technical experience to do the install. My first question is how far is the grid from this building and have you looked into getting power that way instead of doing the solar / battery install?

[yi2020]

I have a 10'x12' shed, with a glass door and two windows, and 194 sqft of root at a 2/12 slant (it's a bit bigger than the size of the shed).

I want to run air conditioning in there (min-split like this), as well as a few screens, wifi router, my computer, lights, etc. The AC in the link has 1080W rating, with max of 1340W (see https://images.thdstatic.com/catalog...518b0f0c53.pdf).

I've done research on other websites, and came to a conclusion that what I need is:
* 8x320W panels (that's what the roof of the shed can fit), like these: renogy.com/320-watt-monocrystalline-solar-panel (NOTE: my shed's roof is facing north, at a 2/12 slant, my latitude is 38 degrees north)
* A 3500W 48v inverter/charger: https://www.renogy.com/48v-3500w-sol...erter-charger/
* Four batteries to get to 48v at the required amps: https://www.renogy.com/deep-cycle-ag...12-volt-200ah/

Obviously, on days where there's little sun, I won't be able to run the A/C, but then again - I won't need it (other than really cold days where I'd like to heat up the place, that's an issue I haven't solved yet)

Is my design making sense? Will this work?
What am I missing here?