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Everything posted by Crossy
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Sofar On-Grid Inverter firmware updates. Any luck?
Crossy replied to MJCM's topic in Alternative/Renewable Energy Forum
There is only one thing worse than having no manual. That is having a manual that is wrong!! Part of my real job is validating user manuals; these can be several hundred pages. They are always wrong until at least Rev.C -
Sofar On-Grid Inverter firmware updates. Any luck?
Crossy replied to MJCM's topic in Alternative/Renewable Energy Forum
You definitely need Sofar. That interface is nothing like either of our Sofar inverters. -
Sofar On-Grid Inverter firmware updates. Any luck?
Crossy replied to MJCM's topic in Alternative/Renewable Energy Forum
Is there a "save" button or similar? Certainly with the hybrid pretty much any setting needs a confirm of some sort. -
Sofar On-Grid Inverter firmware updates. Any luck?
Crossy replied to MJCM's topic in Alternative/Renewable Energy Forum
It's great that it's actually working now, albeit with a bit of "creep". -
If you go grid-tie or grid-sync hybrid then even one panel and inverter will offset your bill by whatever it generates. If consumption exceeds the solar production your grid will top-up to the actual demand automagically. Are you intending to go "official" or DIY on this installation??
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Sofar On-Grid Inverter firmware updates. Any luck?
Crossy replied to MJCM's topic in Alternative/Renewable Energy Forum
@MJCMsince you've now got contact with Sofar you could ask them how to prevent the meter creeping backwards. To be honest, a 10W creep probably isn't ever going to be noticed by the meter man, he's really only interested in the numbers and any blatant banging the meter in reverse. -
Sofar On-Grid Inverter firmware updates. Any luck?
Crossy replied to MJCM's topic in Alternative/Renewable Energy Forum
I don't think you'll ever achieve exactly zero export, we seem to bumble around 10W either way according to my separate meter (don't trust what the inverter says). There should be a CT calibration setting somewhere so you can tweek what it sees, maybe adjust so you are always importing a tiny amount? -
Growatt SPF5000ES Offgrid 9kw DIY Solar Project
Crossy replied to Pink7's topic in Alternative/Renewable Energy Forum
Years back I attended a contract bid-opening meeting, this was for an underground railway. One tunnelling bid was literally half the price of the others. Of course, there was muttering amongst the assembled bidders whose other bids were all in the same ball-park (and close to the contract estimate). The Contract Director quietly whispered (ok a stage-whisper really) to the "winning" bidder's representative "You do realise this is a two-bore tunnel?". Cue a hasty withdrawal of the bid and an embarrassed exit from the room. -
Growatt SPF5000ES Offgrid 9kw DIY Solar Project
Crossy replied to Pink7's topic in Alternative/Renewable Energy Forum
If I had a dollar for every basic maths error I've made ... -
Growatt SPF5000ES Offgrid 9kw DIY Solar Project
Crossy replied to Pink7's topic in Alternative/Renewable Energy Forum
Aren't the cells 280Ah? So, 280 * 3.2V = 896Wh per cell. * 32 = 28kWh ish. 146,924/28 = 5,300 Baht / kWh. -
Sofar On-Grid Inverter firmware updates. Any luck?
Crossy replied to MJCM's topic in Alternative/Renewable Energy Forum
Use your AC breaker for the AC ???? How do you get the firmware in, our unit has an SD card. -
Sofar On-Grid Inverter firmware updates. Any luck?
Crossy replied to MJCM's topic in Alternative/Renewable Energy Forum
Assume whatever you have to interrupt the AC and DC connections, does your inverter have a big DC switch on the inverter itself? -
Customs or tax for sending glasses from Denmark to Thailand?
Crossy replied to TPDH's topic in General Topics
The courier/post office will tell you what you need to pay, no fines. -
Sofar On-Grid Inverter firmware updates. Any luck?
Crossy replied to MJCM's topic in Alternative/Renewable Energy Forum
I did when I first got the on-grid unit. Follow the instructions exactly. Do NOT try to interrupt the beast, it may take longer than you anticipate. Did they not offer to do the update OTA for you?? People on the Sofar Facebook groups do it all the time seemingly without issues, until ... -
Indeed there are. And the person in the OP managed to run out of power AND run out of gas
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Time to buy a cheap UPS for your PC methinks, I wouldn't consider running a desktop without one. Here in northern BKK (still PEA area) we certainly get short interruptions all the time, probably caused by poor network switching. Longer outages are usually the result of weather (or a truck taking out the power poles - twice in 5 years). My general rule is that if it's not back on in 10 minutes it's going to be hours. We have solar with battery backup and a genset for when the batteries die.
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Anutin admits to difficulties in solving the Green Line train issues
Crossy replied to snoop1130's topic in Bangkok News
It's not the Green Line that's in debt really, the debt is the 50 billion (yes, billion) Baht that is currently owed to BTS by BMA/MRTA for operating the extensions. It's all hideously complex and political (and I'm just an engineer). -
Customs or tax for sending glasses from Denmark to Thailand?
Crossy replied to TPDH's topic in General Topics
Spectacles (HS Code 9004.90.0000) are rated as 5% duty on CIF value plus 7%VAT on the total. Clothes are rated as 20% duty on CIF plus 7% VAT. I would send them separately as the duty tends to get charged at the highest applicable rate. Any particular reason you didn't buy the specs here?? Send them by regular post (registered if you want tracking) and they might get through without being assessed. -
The only cow in a small Kentucky town stopped giving milk. The people did some research and found that they could buy a cow just across the state line in Illinois for $200. They brought the cow from Illinois and the cow was wonderful. It produced lots of milk all of the time, and the people were very happy. They decided to acquire a bull to mate with the cow to produce more cows like it. They would never have to worry about their milk supply again. They bought the bull and put it in the pasture with their beloved cow. However, whenever the bull tried to mount the cow, the cow would move away. No matter what approach the bull tried, the cow would move away from the bull and he could not succeed in his quest. The people were very upset and decided to ask the Vet, who was very wise, what to do. They told the Vet what was happening. "Whenever the bull tries to mount our cow, she moves away. If he approaches from the back, she moves forward. When he approaches her from the front, she backs off. An attempt from the side, she walks away to the other side." The Vet thought about this for a minute and asked, "Did you by chance, buy this cow in Illinois?" The people were dumbfounded, since no one had ever mentioned where they bought the cow. "You are truly a wise Vet," they said. "How did you know we got the cow in Illinois?" The Vet replied with a distant look in his eye, "My wife is from Illinois."
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A dog and a cat were having an argument on who is the favorite of humans ???????????? The dog says: “Humans like us more. They even named a tooth (canine) after us. Naming such an important body part after us shows that they like us more.” The cat smiles and says: “You’re not really going to win this one you know.”
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