Crossy

OK, a quick look at the manual suggests that it doesn't have a current transformer (CT) that would allow you to automatically control the output to prevent exporting energy ???? This isn't really an issue unless you find out that your meter is clocking up when you are exporting. Time for a test as detailed above.

Well, as luck would have it the 25th and 27th produced exactly the same amount of energy, 40.9kWh, so we can do a direct comparison with no correction for the control needed ???? 8.56/8.27 = 1.035 so a 3.5% increase, not as big as we saw, but definitely a movement in the right direction ???? Let's continue this experiment.

I'm talking to Foshan Neexgent but looking at the horizontal brush version, I hope it will be more controllable and I'll be able to use it to clean our upstairs windows without breaking out the ladder (so I can justify with Madam). A bit expensive at the moment but Yannis is "checking for a better price". We shall see.

If you clean your panels today (or first thing in the morning) and check energy generated tomorrow, we can use our system as the reference source (5th and 7th March). It would be interesting to see if the numbers correlate. EDIT Actually, if you can let me have the daily total for the day before and the day after your last clean (and the dates) we can compare now using our system as reference.

Yeah ^^^, I would certainly ask about it being at ground level. Just to confuse, our office has "G" as the at-grade floor but the next one up is "2". Our condo in KL had the entrance at "3A" (4 being unlucky in Chinese), it also had ... 11, 12, 13, 13A, 15 ... and the less said about the lift in our place in Ankara, Turkey, the better ????

The Good-ole US of A did actually try, the bill failed but ...

@eddysaccwhich inverter do you have?

There have been a couple of rather vague reports of Thai digital meters charging for export, I've also seen it reported on other solar forums not just in Thailand. I suggest checking if the meter is counting up when you know you are exporting! Just turn everything off around lunch time when the sun as at peak output.

The results of our semi-scientific study. Background Myself and @JAS21 live about 20km apart as the crow flies, at this time of year there's no localised storm activity so we get broadly similar weather. Although our systems are of different capacities the panels are oriented in roughly the same direction and angle. We also tend to clean our panels on a sort of regular basis. The factor we used to determine if cleaning made a measurable difference was Total Daily Solar Generation which would be in kWh. What we did Testing took place over two 2-day periods. Period 1 - 27th and 28th February 2023 JAS cleaned his panels on the morning of the 28th, I did nothing (my system is the control or weather-reference). 27th JAS = 21.92kWh Crossy = 40.60kWh 28th JAS = 23.31kWh Crossy = 38.30kWh The reference output went down by about 4.25% If we apply that factor to JAS output on the 28th we get a corrected output of 24.71kWh. So, the effective change from cleaning is about +12.7% Period 2 - 4th and 5th March 2023 This time I cleaned my panels on the morning of the 5th and JAS did nothing (so his system is the reference) 4th JAS = 23.22kWh Crossy = 35.9kWh 5th JAS = 22.39kWh Crossy = 37.9kWh The reference output went down by 3.6% Applying that factor to my system output on the 5th gives a corrected output of 39.30kWh So, the effective change from cleaning is about +9.5% Conclusion It's not a particularly good test methodology and neither set of panels was particularly dirty (JAS panels were probably a bit dirtier than mine), but there does seem to be a correlation between cleaning them and a not insignificant increase in output. Of course, this does assume that I've done my sums correctly, which is why I've included our measurements if anyone wants to pull my maths apart ???? We will do the same test again when we clean again, actual schedule hasn't been decided as yet, probably about a month unless things look particularly grubby.

Yes. Very good point, we have had reports that digital meters have been charging for exported energy as well as import!

Possibly. Did you use a registered installer? Is your inverter on the approved list? Not sure if this is the absolute latest list: - https://www.pea.co.th/Portals/0/PEAContent/eee/aee_div/reg_equip/PEA Inverter list 6-2565.pdf?ver=2022-07-21-181114-117 If either is "no" then getting a solar friendly meter probably isn't going to happen ???? But it sure as heck it can't hurt to ask. Otherwise, time to shift your lifestyle to use all your energy during the day, washing, ironing, charge the EV.

Nah, THIS is a shameless bump!

Yeah, Madam does something similar, whole fish filled with assorted herbs and stuff and including a secret ingredient. Wrapped in foil then gently cooked on the griddle. She calls it "Happy Fish" because the secret ingredient is my JW Black! ???? (We did try JW Red but it's not quite the same).

Spectacles from the US should be 5% duty + 7%VAT on the CIF value. If sent by a regular mail system rather than a courier you may get away with being charged nothing ????

Yeah, that frozen white fish (Pangasius?) is pretty tasteless and has massive amounts of water. They do have Barramundi ($$$) and Tilapia ($$) both of which are much nicer without having to flavour them up with curry sauce etc.

We get them (and little black flies) sometimes too, annoying. Leave your A/C on "recirculate". A good spray of Raid (or similar) when you close up at night should handle them, the smell will have gone by morning.

I'm conducting a "somewhat controlled" cleaning experiment with another member. Results here when we have something useful.

331454791_722305372875635_6885725306113521743_n.mp4

Right now, things are on hold due to financial circumstances (waiting to sort out a new contract). Watch this space ????

If you give us a clue as your expected usage (with day/night split) and how much space you have for panels. We can give you a guesstimate. Can you go all week on one charge of your EV (top up from solar at the weekend)? Solar here does pay back, having a hybrid inverter with storage can extend the ROI significantly, using a contractor rather than DIY can make it even more expensive. If you can get on the Thai feed-in-tariff that could enable you to balance your TOU costs without using storage! How long do you expect to stay in your home? Once you have covered your costs the energy truly is free! Expect to break-even in 4-10 years.

Yeah, it looks like a mono-bob.

Echoes of Cool Runnings. Very well done young lady ????

Exactly ^^^, once we got rid of the floods the garden has been bone dry, barely a drip of rain.