Muhendis

Ha. Ha. Not bamboo. Can't put a name to it but it's similar to cooch grass.

There is a type of grass which grows tall, deep and wide. It is well know to rural Thais as a soil erosion barrier.

and make a very upmarket Etan for some poor farmer.

I thought someone would have mentioned MBK before me. There is always the national museum at Pipittapan The royal barge storage and the floating market.

PEA web page dated June 2019 https://www-pea-co-th.translate.goog/ข่าวสารประกาศ/ข่าวประชาสัมพันธ์/ArtMID/542/ArticleID/119801/คำชี้แจงเกี่ยวกับอัตราค่าไฟฟ้า-TOU?_x_tr_sl=th&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=sc TOU tariff or time of use tariff (TOU Tariff) is a tariff that reflects the cost of generating electricity, divided into two periods: Peak : 9:00 am – 10:00 pm Monday - Friday and Plowing Day Off-Peak : Time 22.00 – 09.00 Monday - Friday and auspicious plant day

Never mind. Antibiotics will soon clear that up.

This sounds very strange to me. Could you possibly remember the wording of your question and the person you asked?

That's a new one. Currently you can install your own solar electricity for your own purposes and don't need to ask anyone's permission. What approval are you talking about?

So, if the electricity company is producing more electricity than is required it is the GTI installations that are at fault and must therefore be switched off. I find that less than democratic and also it flies in the face of reducing fossil fuel reliance. I wonder how long before the rest of the world follows suit. Maybe I should stay off grid.

That's pretty much as I had in mind. The confusion enters from the article you linked as follows: It's called "curtailment", which is where an electricity generating system stops exporting to the grid or even temporarily shuts down, effectively wasting energy that could have been used. This week, Western Australia followed South Australia in granting authorities the power to turn off household solar systems when the electricity network is under severe stress. That "power to turn off household solar systems" implies there is a switch in the grid tie inverter which is accessible to the "authorities". I hope that is not the case and never becomes so.

Yeah. And that's the way it should be. So what's going on in the isle of oz? How come the grid seems to be able to take control of an inverter?

Hmm! Assuming you have a system with batteries, I guess that means there could be times you are using grid power without knowing, like when heavily overcast. Is there a way to make sure that you don't use grid power in daytime during cloudy moments? (like a UPS function perhaps)

So does this mean that the grid is effectively disconnected? Many inverters use the grid for battery charging or to run the house in the absence of solar.

Well done Anutin, You got your crop ready for harvesting yet?

Yes, but I made some knowledge assumptions which on reflection I should have included. Why does the grid voltage vary? Grid voltage varies because power generation has some complex issues like making sure that thousands of tonnes of turbine is kept running at the right speed (±0.5Hz in UK) and switching additional outputs on and off as and when load fluctuations dictate and as anticipated. There's nothing much any of us can do about that. If local grid power requirements are high and could do with an extra 500kW or so, your little old wall mounted grid tied inverter would, to put it mildly, get very smelly very quickly and possibly die. The inverter power output is therefore kept to levels which would not cause the inverter to die. Output voltage/grid voltage difference and hence current flow will be maintained so as not to overload the inverter. It is also assumed that there is enough power from solar to allow the inverter to start limiting. At a certain point, the inverter reaches it's maximum set voltage limit even though the grid voltage may go higher. That is when the inverter feed-in reduces. When the grid voltage and the inverter voltage are equal, feed-in power ceases. If the grid voltage then rises above the inverter maximum output voltage, current may flow from the grid into the inverter and charge batteries and/or power the house.

That's one way of looking at it. The problem seems to be that the inverters will send power to the grid at a set voltage which can only happen when the grid voltage is lower than the inverter output voltage. As grid demand becomes less so the grid voltage will rise and at some point will be higher than the inverter output voltage. I think the grid then supplies the inverter/house. People in this situation could apply a bit of ingenuity by fitting a relay to their grid connection which would close to only allow inverter power to go out and open to stop grid power from coming in. Where the politicians should get involved is controlling the grid generation of fossil fuel electricity. About 75% of Australian electricity is made by burning coal. That in a country which is well placed for generating solar power. Australia, along with many other countries, is more interested in making big bucks from coal than from helping folks improve the environment.

Ha Ha Moses is a good fellow and as helpful as can be but everything I ask him for (because I can't find it) he hasn't got but he can sell me something irrelevantly similar.

Not a problem out here in the sticks. Ruangsangthai in Buriram has 330 Watt panels at 3,300 Baht. That is some price hike from 2,800 a few weeks ago and I bet it's the same stock too. ????

I'm not sure what you mean, but 'feed in tariff' relates to the money paid by the electricity company for electricity which is fed back into the grid by a consumer. Standing charge is a term which relates to a fixed regular payment for having a utility supply connected to a property and is required to be paid whether utility supply is used or not.

Yes. Three years and counting if I remember rightly. PEA are not renowned for their high speed service are they. I had to wait seven years for my proper electricity supply. That was very much a contributory factor in my decision to go off grid solar. Maybe I should stay off grid until a smart meter is installed. Would they install a smart meter with grid tie plus documentation to follow later do you think?????

There was also a mention of PEA changing the feed-in tariff in May a few days ago. Can't remember who or when it was said but it was on this forum. I automatically filed that in the wait and see department of Thai announcements. If it is true and cost effective I may start looking at the idea of a grid tie setup. ROI will become more interesting then.

To watt are you referring?

Agree totally. But they are all rich and influential. I don't like it but then, who am I to pass judgement?

This is probably a silly question to ask but does the fan run ok on the external heat exchanger?

Unless, of course, your company brews Singha, Leo, Chang et al.