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Author Topic: Big re-work at Nowty Towers.  (Read 2487 times)
nowty
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« on: March 31, 2019, 01:44:10 PM »

Big re-work at Nowty Towers. bike

No additional PV or Batteries or PV inverters but a big re-configuration and simplification. Masses of wires, relays, power contactors, timers, PSUs and many more items ripped out. surrender

Major addition is a large 8kW SMA Sunny Island running as a “flexible storage with backup system”. Also new is an SMA Sunny Manager to centrally control and monitor everything via SMA Sunny Portal, with incorporated G100 compliant export limitation. extrahappy

No more separate Off Grid system, although the new system will do automatic full house backup in the event of grid failure and still allow solar PV operation whilst grid failed. fingers crossed!

In conjunction with my GSHP running the heating and hot water, Nowty Towers has now been solely solar powered for a whole week, not just in Elecy, but Gas too. ralph

Probably will be a few pics to follow. stir
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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.
pantsmachine
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« Reply #1 on: March 31, 2019, 04:00:24 PM »

Congratulations on the refining and on the week free. Long may it continue.
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HUGE insulation depth.
5.12 kw PV system with Solar edge.
4.8 kw Pylon tech battery storage.
All Low energy bulbs.
Solar I boost charging 210 ltr OSO system tank.
Balanced & zoned CH wet system & Hive 2
Wood fired thermosiphon cedar hot tub.
Masanobu Fukuoka inspired veg garden & fruit trees
todthedog
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« Reply #2 on: March 31, 2019, 04:59:16 PM »

Well done Nowty Grin
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'In a time of universal deceit, telling the truth is a revolutionary act'
nowty
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« Reply #3 on: April 09, 2019, 01:52:54 PM »

OUT - Old Sunny Island and Lead Acid Forklift Batteries - Gone to live in Peak District
STILL IN - SMA 4kW Inverter - Re-used in new system




OUT - 3kW AC coupled Battery Storage Inverter, sad loss as worked fantastically but not powerful enough for my needs - Gone to live in Northern Ireland
STILL IN - Pylontech Lithium Batteries - Re-used in new system



OUT - Growatt Controllers - Gone to live in Germany and Latvia
STILL IN - Growatt Batteries - Re-used in new system
STILL IN - SMA 4kW Inverter - Re-used in new system



OUT - Charge Controller, gone to live in Scotland



OUT - Ditching the complexity



OUT - External Change Over Relay



OUT - CT Clamps, new system uses SMA Energy Meters



OUT - No more craziness integrating Lithium and Lead Acid Batteries



STILL IN - 2 x Immersun Diverters - Still work as before with new system



STILL IN - 24V Growatt Batteries modules - Re wired to 48V and used in new system



IN - Both Pylontech and Growatt Battery banks connected in parallel to give a useable 45kWh(s) of Lithium Battery storage, sorry Tesla Powerall but mines bigger, a lot bigger



IN - New 8kW Sunny Island and is now the new "nowty" avatar



IN - New Grid Point Consumer Unit, incorporating grid disconnection relay, SMA Home Manager, Energy Meter, Battery Inverter connection, Solar Inverter connection and future EV Charger connection



System Specs
10kW of PV
8kW of Solar Inverter Power
6kW of Battery Inverter Power (increases to 8kW in Whole House BackUp mode and allows Solar inverters to still run)
6kW of Battery Charger Power
G100 Compliant Export limitation to 3.68kW
8 x 2.4kWh Pylontech Batteries running own BMS.
8 x 4.8kWh Growatt Batteries (No BMS, but charging limited to 80% of max voltage)
Total Battery size 57.6kWh
Useable Battery size approximately 45kWh


And the really surprising thing is that the new configuration hardly cost me any more as the sale of redundant items almost paid for the new Sunny Island.
« Last Edit: April 09, 2019, 02:16:18 PM by nowty » Logged

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.
Fintray
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« Reply #4 on: April 09, 2019, 02:19:23 PM »

Looking good, you must have freed up a bit of space as well.
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3.87kWp PV
10.24kWp PV SolarEdge system
Tesla Powerwall 2
100 x 47mm Navitron tubes (still being installed!)
MK2 PV router DHW diverter
Morso 5kW WBS
Nissan Leaf
nowty
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« Reply #5 on: April 09, 2019, 02:26:38 PM »

Looking good, you must have freed up a bit of space as well.


Your not wrong there !
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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.
pantsmachine
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« Reply #6 on: April 09, 2019, 03:28:21 PM »

There's me thinking of adding one more Pylontech, I'll get my coat of not trying hard enough! Great looking set up. Well impressed! Smiley
« Last Edit: April 09, 2019, 03:29:54 PM by pantsmachine » Logged

HUGE insulation depth.
5.12 kw PV system with Solar edge.
4.8 kw Pylon tech battery storage.
All Low energy bulbs.
Solar I boost charging 210 ltr OSO system tank.
Balanced & zoned CH wet system & Hive 2
Wood fired thermosiphon cedar hot tub.
Masanobu Fukuoka inspired veg garden & fruit trees
kristen
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« Reply #7 on: April 09, 2019, 04:14:57 PM »

OUT - CT Clamps, new system uses SMA Energy Meters

Ooooh ... not seen those before. Can I (or rather "my sparky") just bung one on a DIN rail somewhere and a CAT5 plugged in and I have continuous recording?
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dan_b
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WWW
« Reply #8 on: April 09, 2019, 04:38:46 PM »

Impressive! 
I've got system envy.
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3.06kWp SolarEdge system with a split array:
2.18kWp 10x South facing, plus 4x West facing 880W

Mk1 ImmerSUN DHW diverter
4kW PowerVault Battery
linesrg
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« Reply #9 on: April 09, 2019, 05:31:41 PM »

Mike,

Looking at your new consumer unit you're making me think all the more about ditching my outbuilding CU in favour of one bigger, integrated, unit................

Regards

Richard
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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.
nowty
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« Reply #10 on: April 09, 2019, 10:07:07 PM »

OUT - CT Clamps, new system uses SMA Energy Meters

Ooooh ... not seen those before. Can I (or rather "my sparky") just bung one on a DIN rail somewhere and a CAT5 plugged in and I have continuous recording?

Yes, you can have real time info like this,





Or graphs like this,

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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.
nowty
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« Reply #11 on: April 09, 2019, 10:12:20 PM »

Mike,

Looking at your new consumer unit you're making me think all the more about ditching my outbuilding CU in favour of one bigger, integrated, unit................

Regards

Richard

What it looks like in its naked glory.

Note - The two CT clamps are for the Immersun.


« Last Edit: April 09, 2019, 10:20:57 PM by nowty » Logged

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.
biff
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An unpaid Navitron volunteer who lives off-grid.


« Reply #12 on: April 09, 2019, 10:59:30 PM »

Nice Nowty,, Very nice, fingers crossed!
                          Biff
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An unpaid Navitron volunteer,who has been living off-grid,powered by wind and solar,each year better than the last one.
kristen
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« Reply #13 on: April 10, 2019, 07:15:02 AM »

Yes, you can have real time info like this,
Ooooh ... Smiley

You have two, I presume they are for each of the two circuit breakers (even though not adjacent to them, which would have meant rewiring everything to move-it-along-a-bit presumably?

Not sure how much actual din-rail space I have, but multiple loggers is definitely attractive Smiley

I'll book a visit from my Sparky, I need an extra outdoor power location for a robot mower refuelling station too Smiley
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JohnS
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« Reply #14 on: April 10, 2019, 09:18:11 AM »


You have two, I presume they are for each of the two circuit breakers (even though not adjacent to them, which would have meant rewiring everything to move-it-along-a-bit presumably?


No.

The SMA Energy Meter, on the right, measures the amount of import or export.
The Sunny Home Manager, on the left, talks to the inverter and limits generation so that the export limit is not exceeded.

Is that bare copper I see between the units and the grey and brown cables?
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2.1kWp solar PV
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