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Author Topic: More PV @ Courtiestown  (Read 32900 times)
nowty
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« Reply #345 on: April 25, 2019, 11:32:02 AM »


Now thinking I should have wired my SI like nowty to incorporate the Back-up function.........


Its not that difficult to retrofit, although I had an absolute nightmare in setting it up.

And strangely enough, yesterday I did have my first real power cut since installing it and it worked, although it did trip one of my RCDs.
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11kW+ of PV installed and 54+ MWh generated.
Lithium battery storage of 50+ kWh.
Hot water storage of 15+ kWh.
Heat storage of 15+ kWh.
6kW Ground source heatpump.
EV BMW i3 (another 30+ kWh's of storage).
250,000+ litres of water harvested from underground river.
Home grown Fruit and Veg.
Iain
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« Reply #346 on: April 25, 2019, 11:49:36 AM »

Hi
On my Powervault I added an extra circuit for the house which is fed from the Maintained/backup/emergency supply.
It was easier for me as there is only 1200 w available for this. It feeds the TV, a light in the living room, the solar thermal, the boiler, gas cooker and oven electrics and the cordless phones.
Enough to give us the basics during a power cut.

Iain
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1.98kWp PV (11 x Sharp 180 and SB 2.5)
20 x 65mm Thermal and 180ltr unvented
Powervault 4Kw - G200 Lithium-Ion (LiFePO4)
9000ltr rainwater storage   Plymouth
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« Reply #347 on: April 25, 2019, 12:07:18 PM »

Andy,

Clearly I spoke too soon although we do seem to be back up and running again.

It is a cloudy sunny day here and the issue that I anticipated with the Immersun is wreaking havoc with the SI's attempts to charge the batteries.

One minute we're producing circa 1.5kW, the house is taking 0.4kw and the rest is charging the battery. Then the sun comes out from behind the cloud and all of a sudden we have in excess of 5kW of which 3.5kW is instantaneously exported which triggers the Immersun to divert 2.8kW of it and all before the SI has even cottoned on to the fact there is more energy that can be diverted to battery charging.

The attached picture shows the situation with the Immersun switched off to ensure the battery got charged.

Me thinks I might be buying an Edimax radio-controlled plug device yet.

Regards

Richard


* Screenshot 2019-04-25 at 11.49.03.png (254.79 KB, 1538x1122 - viewed 294 times.)
« Last Edit: April 25, 2019, 06:03:01 PM by linesrg » Logged

1.28kW on a Lorentz ETATRACK1000 + 1.44kW/ SB3000TL-21 (FIT), 1.28kW/ SB1700 (ROO/FIT). CTC GSi12 heat pump/Ecosol/Flowbox 8010e/Gledhill ASL0085 EHS/3off Navitron 4720AL Solar ET & Immersun T1060/T1070/T1090. 3.375kW/ SMA SB3600TL-21 and a Sunny Island 4.4M-12 c/w 15.2kWh battery and a Renault Zoe.
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« Reply #348 on: April 25, 2019, 03:40:15 PM »

Andy,

Clearly I spoke too soon although we do seem to be back up and running again.

It is a cloudy sunny day here and the issue that I anticipated with the Immersun is wreaking havoc with the SI's attempts to charge the batteries.

One minute we're producing circa 1.5kW, the house is taking 0.4kw and the rest is charging the battery. Then the sun comes out from behind the cloud and all of a sudden we have in excess of 5kW of which 3.5kW is instantaneously exported which triggers the Immersun to divert 2.8kW of it and all before the SI has even cottoned on to the fact there is more energy that can be diverted to battery charging.

The attached picture shows the situation with the Immersun switched off the ensure the battery got charged.

Me thinks I might be buying an Edimax radio-controlled plug device yet.

Regards

Richard

I did say a while back, if I ever add batteries to my system, it will in all probability be a DIY system, controlled by the same Arduino that controls the immersion heater dump, so I will be in full control of the charging / immersion dump algorithm and can adjust it to see what works best.
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daveluck_uk
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« Reply #349 on: April 25, 2019, 08:26:16 PM »

Andy,

Clearly I spoke too soon although we do seem to be back up and running again.

It is a cloudy sunny day here and the issue that I anticipated with the Immersun is wreaking havoc with the SI's attempts to charge the batteries.

One minute we're producing circa 1.5kW, the house is taking 0.4kw and the rest is charging the battery. Then the sun comes out from behind the cloud and all of a sudden we have in excess of 5kW of which 3.5kW is instantaneously exported which triggers the Immersun to divert 2.8kW of it and all before the SI has even cottoned on to the fact there is more energy that can be diverted to battery charging.

The attached picture shows the situation with the Immersun switched off the ensure the battery got charged.

Me thinks I might be buying an Edimax radio-controlled plug device yet.

Regards

Richard

I did say a while back, if I ever add batteries to my system, it will in all probability be a DIY system, controlled by the same Arduino that controls the immersion heater dump, so I will be in full control of the charging / immersion dump algorithm and can adjust it to see what works best.

Prodave...have you seen this? Diy batteries!

w w w.youtube.com/watch?v=E4pN4DVPOcY&app=desktop
« Last Edit: April 26, 2019, 12:52:48 PM by daveluck_uk » Logged
linesrg
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« Reply #350 on: April 26, 2019, 11:18:06 AM »

Good Morning All,

I thought we'd solve this issue of not being able to see such as YouTube links???

I've been doing some number crunching here this morning. I took a set of meter readings on April 26th 2018 so have taken another set this morning.

My annual import of electrickery on the 1st January 2018 was 11.53MWh. This was down to 7.34MWh on the 1st April and is now down to 7.01MWh (this figure doesn't include the 0.53MWh we've used to charge the Zoe).

So what is the new battery system doing I hear you ask? On the 24th we imported 3.6kWh although this was because the system had a set of fully charged batteries to play with. Yesterday we imported 10.6kWh. I tried downloading the .csv file and I can see there is a shed load of information there but my version of Excel isn't formatting it correctly - I'll put this on the list of issues to resolve.

I have the system set to charge the batteries from 01:15 - 08:00 at 1kWh currently i.e. Economy 7 (this was sabotaged by the DNO supply problem we had yesterday morning though). The house was running almost solely on the PV/ battery from about 08:30 yesterday through to 01:00 this morning with a slight blip around 18:00 where some energy was imported.

The battery is currently sitting at 79% and charging at circa 0.8kWh.

The system is still learning as it has only 'seen' the full PV output for 36hrs, it is currently underestimating the PV output although less than was the case yesterday.

I wired the double socket under the CU back in yesterday using slightly OTT 4mm2 T&E. I still have to get the generator start batteries back in situ and back on Economy 7 charging.

One of the next challenges comes in determining the electricity usage going forward when I go to the likes of uswitch to work out the cheapest supplier.

Regards

Richard
« Last Edit: April 26, 2019, 11:31:23 AM by linesrg » Logged

1.28kW on a Lorentz ETATRACK1000 + 1.44kW/ SB3000TL-21 (FIT), 1.28kW/ SB1700 (ROO/FIT). CTC GSi12 heat pump/Ecosol/Flowbox 8010e/Gledhill ASL0085 EHS/3off Navitron 4720AL Solar ET & Immersun T1060/T1070/T1090. 3.375kW/ SMA SB3600TL-21 and a Sunny Island 4.4M-12 c/w 15.2kWh battery and a Renault Zoe.
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« Reply #351 on: April 26, 2019, 04:41:38 PM »

Good Afternoon All,

Been tidying up around the SI install since lunch. Next up will be carrying on de-cluttering after the Growatt removal.

Regards

Richard


* IMG_3059.jpg (167.44 KB, 960x1280 - viewed 211 times.)

* IMG_3060.jpg (213.28 KB, 960x1280 - viewed 205 times.)
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1.28kW on a Lorentz ETATRACK1000 + 1.44kW/ SB3000TL-21 (FIT), 1.28kW/ SB1700 (ROO/FIT). CTC GSi12 heat pump/Ecosol/Flowbox 8010e/Gledhill ASL0085 EHS/3off Navitron 4720AL Solar ET & Immersun T1060/T1070/T1090. 3.375kW/ SMA SB3600TL-21 and a Sunny Island 4.4M-12 c/w 15.2kWh battery and a Renault Zoe.
Philip R
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« Reply #352 on: April 26, 2019, 06:29:09 PM »

Richard,
Those bare live studs should be shrouded. Something could fall against them and the battery and cause a fire.
Philip R
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« Reply #353 on: April 26, 2019, 06:42:24 PM »

Philip R,

You're quite right and there are also the inter battery connections to protect as well. I've still to finalise the battery set-up as it needs more 'fire-proofing' and insulating as we have seen -15oC here. I'll probably end up sticking a small thermostatically controlled heater in there. Once I've enclosed/ insulated these batteries I should get some idea as to how much heat is actually generated by the battery charging/ discharging process.

The wall under the SB3600TL-21 is now looking very bare......

Regards

Richard


* IMG_3063.jpg (357.75 KB, 960x1280 - viewed 180 times.)
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1.28kW on a Lorentz ETATRACK1000 + 1.44kW/ SB3000TL-21 (FIT), 1.28kW/ SB1700 (ROO/FIT). CTC GSi12 heat pump/Ecosol/Flowbox 8010e/Gledhill ASL0085 EHS/3off Navitron 4720AL Solar ET & Immersun T1060/T1070/T1090. 3.375kW/ SMA SB3600TL-21 and a Sunny Island 4.4M-12 c/w 15.2kWh battery and a Renault Zoe.
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« Reply #354 on: April 27, 2019, 08:25:43 AM »

Good Morning All,

I need some help (that's SWMBO's opinion as well Wink).

Seriously I have downloaded an Excel .csv file from the Sunny Portal site so I can attempt to extract some information from it however it isn't presenting in the format I believe it should and would like to know if there is something I need to do by way of settings or whether I need to contact those awfully nice chaps at SMA.

Obviously I can't attach the file to this posting so if interested members PM me and advise their EM address I'll send then the file direct.

After I download it and click on the Downloads icon in the Bottom Bar the small image shown does show it as being in column format but as soon as I open it this MacBook version of Excel doesn't do what it should with it.

Thanks in anticipation.

Late Extra - If it is any help I have just downloaded Apple's 'Numbers' programme and it opens SMA's file perfectly, allows me to save it as an .csv file and I can then open it in Excel as 'normal'.

My immediate aim is to try and determine how much my energy usage i.e. day/ night and overall consumption alters.

Both Sunny Portal and I got the weather wrong yesterday as there was more sun than forecast so I didn't need to have charged the batteries quite as much as I did in the early hours of the morning.


Regards

Richard
« Last Edit: April 27, 2019, 08:58:41 AM by linesrg » Logged

1.28kW on a Lorentz ETATRACK1000 + 1.44kW/ SB3000TL-21 (FIT), 1.28kW/ SB1700 (ROO/FIT). CTC GSi12 heat pump/Ecosol/Flowbox 8010e/Gledhill ASL0085 EHS/3off Navitron 4720AL Solar ET & Immersun T1060/T1070/T1090. 3.375kW/ SMA SB3600TL-21 and a Sunny Island 4.4M-12 c/w 15.2kWh battery and a Renault Zoe.
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« Reply #355 on: April 27, 2019, 09:25:48 AM »

I had the same issue trying to download a "CSV" file from PVGIS and view it in excell.

The problem appears to be "poor standards"

You would thing CSV = Comma Separated Variables would be pretty clear and straightforward, and indeed if the file DOES uses comma's in between the variables, then  all is well.  But a lot of programs that claim to create a CSV file use something other than a comma.

I have never found a way to make excell recognise a different separator character, so your solution of read it into a different program then re save it with propper commas is probably the only way.
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« Reply #356 on: April 27, 2019, 02:12:44 PM »

I have never found a way to make excell recognise a different separator character, so your solution of read it into a different program then re save it with propper commas is probably the only way.

Not used "real" excel for a little while, I use a free clone on my PC. But I used to regularly have this problem when processing various data sets at work.  But I am sure you used to be able to define the separator. The way I used to do it was to rename the file with a .txt extension rather than .csv Then open the file and when excel loads it it puts up a dialog box which first asks if it is a fixed or variable field. If fixed it asks for how many fields, what widths etc. If you select variable it then asks you what the separator character is.

Another option in Windows on a PC/Laptop is to go to START -> Control Panel -> Region, click on Additional Settings and you will see a box with "List Separator". Change this. This will of course change ALL csv's saved by Excel and also mean you can't load "normal" CSV files unless you go the txt route.

Hope that helps.

Roger
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3.15kWpk (15xSharp ND210)/SB3000. & 3.675kWpk (15 x Suntech 245WD)/SB4000TL, 10kW GSHP driving Wirsbo underfloor heating from 1200m ground loops. 10' x 7' solar wall (experimental). Clearview 650 Wood Burning Stove. MHRV - diy retrofit. Triple glazing.
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« Reply #357 on: April 27, 2019, 05:55:10 PM »

Good Evening All,

As I have no wish to upset any members of a certain nationality on the forum but which bit of 'Comma' don't SMA understand? They have clearly used semi-colons.

I don't know what has triggered it but I have just tried downloading an updated .csv from Sunny Portal and the MacBook chose to open it using 'Numbers'. I closed it down and then opened the document in Excel and it recognised something wasn't 'right' and basically took me the route Roger proposed.

The whole process of installing the SHM 2.0/ Energy Meter and Sunny Island is anything but clear and I have benefitted from nowty's learning curve. Their manuals are anything but clear overall, suffer from equipment being 'ahead' of some of the documents on their web site. Try and make sense of their postings about which Edimax plug is currently working with Sunny Portal.

My Sunny Island is brand new and hot from the factory and comes complete with a piece of paper inviting me to register the device. OK so please follow this:-

1. Go to the SMA site (www.SMA-Solar.com), then follow the route Service & Support>Downloads>Battery Inverters/SI4.4M-12/SI6.0H-12/SI.8.0-12>Technical Information and find the file entitled 'Information Sheet for Sunny Island Systems'. I hope you have more success than I have.

Why am I being asked to fill in a paper form and presumably 'post' it?

Why do you have to print out, fill in and post a three page form and then post' it to get a code to alter settings and also have to pay a 50 fine, sorry fee?

Then for a laugh try going for the support option - every time I work my way through the pages and hit the final submit button I get an error message.

SMA is what is called a technology company hysteria

Regards

Richard
« Last Edit: April 27, 2019, 05:57:16 PM by linesrg » Logged

1.28kW on a Lorentz ETATRACK1000 + 1.44kW/ SB3000TL-21 (FIT), 1.28kW/ SB1700 (ROO/FIT). CTC GSi12 heat pump/Ecosol/Flowbox 8010e/Gledhill ASL0085 EHS/3off Navitron 4720AL Solar ET & Immersun T1060/T1070/T1090. 3.375kW/ SMA SB3600TL-21 and a Sunny Island 4.4M-12 c/w 15.2kWh battery and a Renault Zoe.
Tinbum
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« Reply #358 on: April 27, 2019, 06:13:24 PM »

Then for a laugh try going for the support option - every time I work my way through the pages and hit the final submit button I get an error message.

So have I for years so I email them direct.
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85no 58mm solar thermal tubes, 28.5Kw PV, 3 x Sunny Backup 5048, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, Atmos wood gasification boiler, Brosley wood burner, 2000lt buffer tank and 250lt DHW
nowty
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« Reply #359 on: April 27, 2019, 07:41:33 PM »

My Sunny Island is brand new and hot from the factory and comes complete with a piece of paper inviting me to register the device. OK so please follow this:-

1. Go to the SMA site (www.SMA-Solar.com), then follow the route Service & Support>Downloads>Battery Inverters/SI4.4M-12/SI6.0H-12/SI.8.0-12>Technical Information and find the file entitled 'Information Sheet for Sunny Island Systems'. I hope you have more success than I have.


Yeah I failed with this too, it invites you to get a free warranty extension from 5 years to 10 years if you register within 1 month of commissioning but as you say, you follow the instructions and the doc is not there. I looked everywhere on their websites and still no help. I kept thinking I will contact them tomorrow, then before I knew it I was over the first month.

I have had a hell of a learning curve with setting it up, far worse than the old one. And your right, their documentation is, well on one hand, looks very comprehensive, on the other, sometimes incomprehensible, what they write sometimes does not work and you have to do something else.

But in the end it does work and works very well.
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11kW+ of PV installed and 54+ MWh generated.
Lithium battery storage of 50+ kWh.
Hot water storage of 15+ kWh.
Heat storage of 15+ kWh.
6kW Ground source heatpump.
EV BMW i3 (another 30+ kWh's of storage).
250,000+ litres of water harvested from underground river.
Home grown Fruit and Veg.
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