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The system I am running right now has a solar controller connected to my lithium battery in the usual way. Because my battery is limited in size, I sometimes need to supplement solar with dc power from the grid when its very cloudy for several days in a row. After trying quite a few different...

Official supply voltage spec in oZ is 210v to 265v. The power utilities guarantee to stay within that, and any approved household appliance to Australian Standards will work within that range too. So voltage is not that critical, the grid goes up, down, and sideways all the time, and everything...

I am completely unfamiliar with commercial equipment or the official grid tie rules and regulations. I always design and build my own equipment from scratch. Much more interesting, and I get whatever features I want to have, and its for off grid anyway. But you are quite right. A detailed read...

Yes direct 235v ac connection between Growatt and Warpverter. Warpverter is just a dumb crystal locked inverter, no real advantage in moving its frequency away from 50.00Hz. The Growatt would just chase it around in frequency anyway, with no net effect. Excess power from the Growatt goes into...

If you do the math, you will find that if usable solar output power for a single string of panels varies from say 50 watts to 1,000 watts, the load resistance also needs to seamlessly adjust over a similar 20:1 range to maintain a constant optimum panel voltage. You can do your element (or...

Its like building a car without a gearbox ! You can gear that car any way you like, but it still has only one gear. What is the best gear ratio ? You can build it so its like about second gear, a bit slow to start off, and it will be howling at normal road speed. Or maybe gear it so it like...

You can get pretty effective water filters, and there are also ultraviolet sterilizers that will remove or kill most of the nasties. Its only really the kitchen water that needs to be really good.

That should all work pretty well. I think this whole Legionnaires thing is totally overblown. If the risk was as high as some people believe, people drink and wash in cold water and are not dropping dead. Bugs do not spontaneously manifest in a water tank from nowhere, they have to get in...

Because If I am using a LOT of hot water, my storage would quickly be depleted if the temperature was set very low. The whole hot water system here is something I plan to look into in the future. I would like to get more solar panels and transfer much of my heating load onto solar. First...

I have the Australian version of that, "adjustable tempering valve" Model TVA50HF fitted to my bath. https://www.rmc.com.au/wp-content/uploads/2020/10/RMC_HeatGuard_Installation_Manual_1020.pdf Its a great way fill a bath, but it does have some limitations for other purposes. When you first...

Circuit topologies like that date back almost a hundred years, long before the transistor era. Synchronous "switches" in primary and secondary of a transformer give bi directional dc power flow between two different voltages. Back in the old days a "vibrator" buzzed away with two sets of...

That is fine, if all family members can reach a consensus. I rather prefer hotter showers in winter, and cooler in summer. But that's just me... But have to agree, very close to desired final temperature is best.

Gas instantaneous water heater might be the worst type for a shower, depending on circumstances. The temperature control is pretty crude ( its done by throttling the gas). Any change in pressure or flow either at the up stream input or down stream output causes massive temperature swings until...

The first link you gave in post #72 provides an Arizona address and telephone number. My suggestion of a dc pump was general, not of any specific pump or pump supplier. I have no personal experience with solar air pumping, so there my knowledge ends. However I have quite a bit of experience...

Bop raises an interesting point. On total cloud days when its not even possible to see where exactly the sun is, solar output will be pretty pitiful. But what matters most is the total area of exposed panels, and it does not seem to matter in which direction they face. Pointing straight up is...

Don't ship to the US, are you sure ?? They are located in Arizona ! But apart from that, they are purpose built for the application, and I doubt if you could do any better.

Living dangerously, has its consequences :):):):):):):):):):):):):):):):):):):):):):):):):):):):):):)

If it can be done with dc directly, (motors, heating elements) its always going to be a lot simpler and cheaper.

Yup. I have always thought Microsoft is an instrument of the devil.

Just went back and had another look at post #1 still no results visible here. Using Linux Ubuntu browser, maybe the Linux software is democrat and FUBAR.

I was the only "can't vote" there. I am located in Australia, and that is the reason I cannot vote. And I did not see any results except those re posted in replies to the thread.

When will nuclear war start ? When will the US dollar crash ? When will total anarchy begin ? When will planet X crash into the Earth? When will Delmar release the results of the poll ?

Glad to hear its all now working again without a lot of drama.

I am done with your nonsense.

Nope.

If I bought a brand new car and one of the tires had low air pressure and was slightly deformed, I would not insist the car dealer replaced the whole car under warranty. I would simply fix it myself by adding air and say nothing. Hysterics at the car dealer will very likely NOT get you a...

Luke, there are no "new" cells, they are all charged and then tested during manufacture, then may be stored in a warehouse at high ambient temperatures, or even shipped overseas in a container that has been sitting in direct sun for weeks on a container ship sailing through the tropics. There is...

These cells are made of very tough plastic material (?) but internal gas pressure will cause some normal slight swelling if the cells are not rigidly clamped as recommended by the supplier. Once swollen, they will not return back to shape all by themselves, without assistance from clamping. If...

I would connect them up as twelve separate series strings of sixteen cells per string. That way you can watch and follow the voltages of each individual cell. Put the whole thing through several charge/discharge cycles and see what happens. It should be fairly easy to spot any weak cells that...

Not going to argue with you. Its entirely possible to run higher temperature rated cable well within its thermal rating, and end up losing half your voltage along the way.

Three hundred feet is a fair distance, six hundred feet of wire. It might be a good idea to work out the minimum acceptable wire gauge versus voltage drop required, if you have not already done so. https://www.engineeringtoolbox.com/copper-aluminum-conductor-resistance-d_1877.html

There are also small 12v diaphragm air pumps for inflating tires.

There was one famous bloke that was tried, convicted and then crucified. The news media of the day said some very bad things about him too.

A quarter mile is a long way. But if you can narrow it down to a short section, I think you might be able to identify a dip in the pipe just by looking.

Hardly surprising really, its a very emotive issue.