Anders Eriksson

2 hours ago, Crossy said:

PVwatts is a pretty good resource.

 

https://pvwatts.nrel.gov/

 

Any potential shading from trees, house etc?

Are you actually maxing out your inverter so it can't make use of all the power you are generating?

Are your batteries full (and you're not exporting)? Try turning on some load (kettle, microwave etc etc.)

 

If you are getting roughly the same amount of energy (Watt Hours) in a day from each array I wouldn't be overly worried. 

 

EDIT Right now two of our inverters (#2 & #3) are " batteries are full and minimal house load (no exporting).

 

Interesting! So this is 4 inverters. And this information you can see in picture in your program?

I wounder if I can see that too in my Solarman business? I think I will see if I can find a manual

"throttled right back," Which means?

Attach a picture of my electric central. Made by a former colleague of me that let build this house. Little unusual in Thailand I think

32 minutes ago, Crossy said:

From your other thread I gather you have:-

• 30 x panels of about 530W each
• 2 x 20kW 3-phase inverters
• 35kWh of storage

I admit to being intrigued as to why you have 40kW of inverter with only 16kW of panels. Future expansion maybe?

 

Anyway, with so few panels you are nowhere near maxing out your inverters and so limiting the available power. In fact you could even be under-paneled for the MPPTs to make it into their ideal working zone.

 

What is the state of charge of your batteries? If there's nowhere for the energy to go it won't get made.

 

The reason for 2 inverters is the electric car ;-). The big charger is for 32A in 1 phase and that is maximum for the inverter. And as we have a 3 phase house there are many things on every phase

Expansion of panels? the problem are the batteries 35 kW, too little and they are expensive and the say I can add more because the problem to align them to the old. After 6 months I was successfull to add 4 to the 10 I had. So that is the reason why I try connect to PEA, sell power and buy power when batteries are low.

"If there's nowhere for the energy to go it won't get made." Please explain

5 minutes ago, Crossy said:

PVwatts is a pretty good resource.

 

https://pvwatts.nrel.gov/

 

Any potential shading from trees, house etc?

Are you actually maxing out your inverter so it can't make use of all the power you are generating?

 

If you are getting roughly the same amount of energy (Watt Hours) in a day from each array I wouldn't be overly worried. 

Thanks for the link, I hope I will understand!

Nothing shading!

1 group on roof of carport (slave inverter), 1 group on house roof (Master inverter). Inverters connected in parallell to get 64 A load on each phase

Both absolute south orientation

I never heard of maxing out inverter (Sofar HYD20KTL-3PH), is it possible and how to do? Info in manual?

I don't know how to see the dayly effect on Solarman Business. Is it possible to see on each connection?

On Slave I have PV1: Carport 8 panels in serie, PV2: east 7 panels in serie

On Master I have PV1: Roof house south 8 panels in serie, PV2: west 7 panels in serie

Is there a table for this or can anybody help me?

I have 8 panels on 2 places towards south and they give very different current, about 20% difference.

I don't know the inclanation of them, will check today.

Either the differnce in inclanation gives the difference or a problem have ocurred

16 hours ago, UWEB said:

Was it installed by a PEA registered Company or self done? In case of DIY see below thread.

 

 

It was installed by a PEA registered company and material was approved too!

<Note by Crossy> Fixed the reply, it was inside the quote

2 hours ago, BritManToo said:

Can't be done, has to be installed by a pea approved installer using pea approved equipment. So you've already missed that boat.

How do you know this is not installed by a pea approved installer using pea approved equipment?

14 minutes ago, quake said:

Have a look here.

It's an up hill struggle. 

Good luck.

 

https://aseannow.com/forum/319-alternativerenewable-energy-forum/

This only take me back to the forum. A mistake?

I have 30 panels 16kW, 2 Sofar inverters 20kW in parallell, 14 batteries 35kW.

I am running this off-grid in a private village.

I am hoping that I soon can connect to PEA direct so I can be able to sell energy when I have more than I need and bye when i need.

I should like to know how this is made, I hope you can get me the information or tell me where I can find it. I can think that this allready is discussed.

This is a small village in Pran Buri. We have a high voltage transformer from PEA.

I have let installed 30 solar panels total 16 kW, 2 20kW inverters in parallell and 35 kW batteries.I run this off-grid.

I should like to connect to PEA direct but there seems to be some problems.

They say the house should be situated at the local road and my house is not.

But technically it should be possible. My cable is connected to a local meter in a cabinet that stands only 3 meter from PEA's pillar outside wall.

So a box is needed to connect the old cable with a new cable about 4m, through the concrete, in the soil and up to PEA meter on the pillar.

Is it possible to get PEA to accept a connection like that?

I have also heard that PEA say that the cable should be installed by someone they have approved. I don't know how this was made 15 years ago,

but I know that correct cable is used, it is covered with an approved tube and over that is concrete plates. Cablei is 60 cm below surface.

Can PEA accept that? I have phote of the tube that is used.

The reason for connecting to PEA is that I should like to sell energy and get some energy when batteries are not enough.

I don't know what equipment that is needed to sell energy. Is it needed an extra cable from my electric central which I heard someone say?

That should make it impossible for me.

I am greatfull for any information that can help me about this!

I have tried to that before at the same place, some years ago, didn't succeed, don't remember why.

Now I will try harder and try to document what I do.

I bought a bag of seed for a peach tomato from a Thai company

I started 21 September, after 3 weeks I planted them in pots about 12 cm high and top diam about 12 cm.

I have made a cover for them, 70x100x150cm covered with "culture tissue" that we use in Sweden to protect plants.

I tried to follow instructions on the bag. On 20 Nov they have died. I am rather sure the reason is i have have put too much 9-25-25 to them.

I have tried to put new seed in small pots every 14 days.

Now I have 2 plants from 21 Sep in the cover. The have started to flower and i have tried to pollinate them with a brush. But I have not seen any positive result.

I think that the temperature is making the pollen  infertile.

This time have i been more careful with fertilizer, I am waiting to get a special bottle with tomato fertilizer from Sweden that you mix with water.

What do you other say, should it be possible to grow tomatoes at this place?

Can you give me any tips how to succeed?

On 7/6/2020 at 8:19 AM, Peter Denis said:

 

 

 

In case you consider the LMG Insurance option (cheapest option to meet the Non Imm O-A retirement extension requirement for health-insurance), just PM me and I will provide you with full details on how to apply for it, including tips/caveats.

 

Peter Denis, can I ask you to PM me this info? TIA if you are kind to do!

I have a magnapool and should like to come in contact with other that have that kind of pool

Now I have put in 2kg chlorine shock. The first 40 hours ago and the 2nd 10 hours ago. The pump has been running for 30 hours. I have also put in 2 l acid.

Ph is still about 7.8 and Cl 0.2-0.6. Nothing seems to happen. Can chlorine shock be old, I bought it almost 1 year ago.

Today I asked for chlorine in liquid form, but they didn't have and they didn't know where to find.

1 hour ago, Naam said:

for brown and yellow (mustard) algae run 24 hours.

2 hours ago, Naam said:

that's not surprising because TIT - This Is Thailand

Pleas, explain.

50 minutes ago, sappersrest said:

Make sure that when researching make sure the info you read is reasonably up to date, a great deal of stuff on the net regarding pools is getting fairly dated  most of it comes from the 80s

 

Guidelines for chemical levels really do change  the 7.4... 7.8  is based on old research mainly done in the 70s . Later reasearch dictates that we lower the pH to make the hypochlorus acid far more effective.7.2--7.4 is now the norm.

if you read pages 13 ,14,15 of the publication listed below will give some better understanding. The recommendations are the latest offering from PWTAG . This a UK based organization who's recommendations on design are recognized throughout the world, perhaps withe the exception of the USA,

lovibond_handbook_gb.pdf

The WHO a good organization seem to sit on the fence as they always do recommend pH to be kept between 7.2--- 7.8.

http://www.who.int/water_sanitation_health/bathing/srwe2full.pdf

Page 95 5;10;3

 

I am grateful for getting these documents. Especially the first one will be good for me to learn more about pools!

I had one pond/pool man here, he said I should have 5 in Cl. What kind of tool is it to measure that?

8 hours ago, Naam said:

that's normal. but for a correct check it should be five drops.

Even if the instruction says 4?

One new thing I now noticed is this:

When I fill the glass with water to check Cl and add 4 drops from the yellow bottle and shake it. The tube is not showing any bit yellow which means 0 Cl. When I then let it stand and look after say 20 minutes the colour is very yellow, showing over 3.

Why is it like that?

Earlier I have noticed the change of colour when I shake the tube and no big change after that.

1 hour ago, sappersrest said:

Not enough chlorine Soda ash raises your pH and chlorine shock will extra chlorine , I would also suggest at some stage to lowering the pH to 7.2 

 

I would suggest your chlorinator is not wok or the plates are clogged up

 

A useful tool

https://www.totalpool.co.uk/index.php/resources/dosing-calculator

 

https://swimmingpoolchemicals.co.uk/dosecalc.php

 

This looks like a useful design tool I have not played around with it yet, used to do all my calculations the hard way, will play about with it in the week . and post later

https://draftsman.files.wordpress.com/2013/11/main-pool-lanai-new.xls

I suspect the cell is not working! I have only had it for 8 months and I have cleaned it two times. Latest 1 week ago. But i can allreado see it has started to build up scale. Normally I only run system 2+2 h per day, but very little use of pool. I run it at 100% at 100. Now I have started it to run continously. It will be very expensive if I should change the cell every 8 months! The cost of the cell is half of the total price. Here in Th it cost about 360 USD. I have tried to find a cheaper source.

So I will put Acid in to get the Ph at 6.8-7.2

How much shock chlorine should I ad? It is in powder form. What is the chemical name for it?

Thank you Naam and grollies!

I have Soda ashes and something for schocking, is the name chlorine schock?

Which can i use?

Since some week my pool have started to create more and more brown areas at the bottom. Most of it can be brushed and sucked up, but not all. And after a cleaning it is back very fast.

Pool is 43 m3

It has a salt chlorinator Emaux 15

Salinity now is little high due to a faulty meter and to much salt added. Abut 6.

Ph is 7.6 and Cl 0.6

Temp around 29

I tried to add solutoin for alges, but no effect.

What is causing this and how to deal with it?

Hi,

I also have not successed with dill

I live in Hua Hin.I have grown tomatoe and cucumber, no problem.

But with dill I can't sucess. First they take a long time to come up and some don't come up. When I then replant them some just don't increase and if the do they are so tiny and they will not be big. I have tried to ad nutrition of different arts, but it will not help. The company that have made this bag is Chia Tai co ltd.

The reason for me to grow dill is that I want to have the special kind of dill, we call "krondill" in Sweden, see photo. I think it is the same dill but you want it to stay longer. I should use it when i cook Shrimps.

When i look at the amrkets, the sell the normal kind of dill. How do they do to make it grow normal?