Crossy

If going the recommended hybrid inverter route, you would get inverters that can run in parallel (not all can) and tell them they are configured for 3-phase. They talk to each other over an RS-485 link.

I do wish that people who post "confused" emoticons in a technical forum would actually post WHY they are confused, then we can take steps to un-confuse them 🙂

They differ in that the three phase voltages are at 120o to one another. If you are using one phase then phase angle doesn't matter but when you use all three then it does. It's just a fact of life that swapping two phases cause a 3-phase motor to run the other way. There's plenty of on-line tutorial stuff on 3-phase or you can get the text books I used long, long ago 🙂 EDIT This is the exact version we used 🙂 https://www.amazon.com/Higher-Electrical-Engineering-John-Shepherd/dp/0273400630 That image brings back some (not always good) memories of Bath in the 1970s

A number of members are already doing it, some with multiple EVs.

I can see now why you need 3-phase, that is one big home. I'm amazed it was actually on a single-phase supply at all. Do verify whether you are MEA or PEA (look at the meter or the one next-door) as MEA doesn't go that far out of town. We are in Greater Bangkok and on PEA. 130m2 of panels would be in the order of 21kWP and would generate about 70-80kWh per day (very much dependent upon the weather). I'd initially look at 3 single-phase inverters, one per phase, say 10kW each. Certainly go hybrid even if you start out with no batteries.

I really hate this kind of advertising as they put the solar industry in a bad light when they come nowhere near the advertised performance. Somewhere in there is the disclaimer, not found it yet.

There's no "may" about it!! They also show PWM charge controllers which are hideously inefficient. To be honest, that kit would be nearer to 100W than 1,000W, sorry.

Do you have an actual link for that? 850mm x 680mm = about 0.5m2 With the absolute maximum insolation from our local star being about 1kW per m2 that panel is 200% efficient!!! Most real panels are about 20% efficient. A 330W panel is about 1m x 2m. Something doesn't add up.

Where are you getting 1,000W panels for 1,500 Baht?? A 1kW panel would generate about 3-4kWh per day of decent sunshine. It would also be about 3m x 2m and weigh ... Direct EV charging (DC) from solar is an emerging technology = $$$ Easier would be to use a simple grid-tie inverter to supplement your grid energy usage whilst using the "granny charger".

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High tide today, slightly down on yesterday 🙂 The calm before the storm??

If your prospective load is over about 10kW (which would max-out a 15/45 supply) then the supply authority will likely want you to go 3-phase. Some locations will do a 30/100 single-phase supply (20kW or so) but it's by no means a given. And, as our OP notes, he has 3-phase machines. Also, having 3-phase gives you some redundancy. It's common to lose 1 phase, with a 3-phase supply you still have two good phases. You can even get automatic selectors that pick the "best" phase for your essential equipment.

Just how big are the A/C units you're looking at? The problem with 3-phase equipment is that the loss of one phase will take your kit down. And. By far the most common failure mode of power supply here is the loss of one HV phase (it's always the one our single-phase supply is on)! Cue no A/C despite you having at least some lights and outlets. If you have 3-phase machines, get 3-phase for them, but treat the rest of your home as 3 single-phase installations.

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Apparently, reptile eyes are sensitive to blue/green so it might dissuade the beastie, but the call of food may be stronger. Jinjoks will certainly chase the red-dot of a regular pointer in case it's potential food.

Easily. As I noted it zaps the beasties on the next-door place 100m or so away 🙂

Yup, 3-phase supply is available. Ground is not supplied by the MEA/PEA although the neutral is usually grounded every 3rd pole of so for a TNC-S (MEN) system. It is worth talking to the local PEA office to check what they will actually provide.

Possibly not, our jinjoks will go after the red dot thinking it's edible.

She has her slave then 🙂 We feed "ours" in the evening, fresh water and a couple of tablespoons of dry cat food. She also has somewhere sheltered to sleep. Not really a social cat but she does sometimes hang out under my desk crunching up a nice juicy rat 🙂

Adding a different tack, would there be any mileage in leasing/renting the space occupied by the house/village office to the current occupant?

High at Pathum, well down on yesterday 🙂 But, what's on its way to us from up-north?