On-grid domestic battery storage

newbuilder

Starfrog said:

1961Nick said:

Pylons come with a terminated earth strap so it's no hardship to fit it. 

i am happy to fit all the earth cables but what would i attach it to in my garage without driving a spike into the concrete floor ? 

Does it not get connected to the earth screw in the inverter which in turn is connected inside to the earth going back to the fuse box and then into the house earthing? Maybe an assumption I made

Starfrog

newbuilder said:

Starfrog said:

1961Nick said:

Pylons come with a terminated earth strap so it's no hardship to fit it. 

i am happy to fit all the earth cables but what would i attach it to in my garage without driving a spike into the concrete floor ? 

Does it not get connected to the earth screw in the inverter which in turn is connected inside to the earth going back to the fuse box and then into the house earthing? Maybe an assumption I made

dont know ill have to look to see if theres an earth on the inverter 

EVandPV

newbuilder said:

Starfrog said:

1961Nick said:

Pylons come with a terminated earth strap so it's no hardship to fit it. 

i am happy to fit all the earth cables but what would i attach it to in my garage without driving a spike into the concrete floor ? 

Does it not get connected to the earth screw in the inverter which in turn is connected inside to the earth going back to the fuse box and then into the house earthing? Maybe an assumption I made

Spot on. That's where ours connects to.

Solarchaser

Yeah on the inverter there is an earth.

I have to say though, at 48v... can't really see the need for an earth.
Certainly 3 years for me with batts and I think I used one for my first install only.
If you had put 4 car batteries in series there would be no earth, so... yeah.

1961Nick

Starfrog said:

1961Nick said:

Pylons come with a terminated earth strap so it's no hardship to fit it. 

i am happy to fit all the earth cables but what would i attach it to in my garage without driving a spike into the concrete floor ? 

The inverter case, a pipe, the CU?

Starfrog

Ok I apologise if this is a dump question (waits for replies of "yes this is a dumb question") but with my setup and the Luxpower ACS 3.6 inverter I get clipping from my solar array which want to go a lot higher than the 3.5 it tops out at in fact I would think it can go up to at least 5.40 which is nearly 2kWh of power that im missing each sunny. Is there an inverter out there that will allow me to benefit from my full solar array but also limit the grid dumping to only 3.6 which is why I think the inverter has that limit ? Id rather not dump anything to the grid and just store it all in battery and my hot water tank. it seems such a waste that i am losing the potential of the full array (another 35+% or power). ideas suggestions welcome. 

QrizB

Starfrog said:

Ok I apologise if this is a dump question (waits for replies of "yes this is a dumb question") but with my setup and the Luxpower ACS 3.6 inverter I get clipping from my solar array which want to go a lot higher than the 3.5 it tops out at in fact I would think it can go up to at least 5.40 which is nearly 2kWh of power that im missing each sunny. Is there an inverter out there that will allow me to benefit from my full solar array but also limit the grid dumping to only 3.6 which is why I think the inverter has that limit ? Id rather not dump anything to the grid and just store it all in battery and my hot water tank. it seems such a waste that i am losing the potential of the full array (another 35+% or power). ideas suggestions welcome. 

I think @Reed_Richards has a system like that; the inverter limits his export but that's net of his own consumption. Hopefully he'll give you the full SP.

Reed_Richards

QrizB said:

Starfrog said:

Ok I apologise if this is a dump question (waits for replies of "yes this is a dumb question") but with my setup and the Luxpower ACS 3.6 inverter I get clipping from my solar array which want to go a lot higher than the 3.5 it tops out at in fact I would think it can go up to at least 5.40 which is nearly 2kWh of power that im missing each sunny. Is there an inverter out there that will allow me to benefit from my full solar array but also limit the grid dumping to only 3.6 which is why I think the inverter has that limit ? Id rather not dump anything to the grid and just store it all in battery and my hot water tank. it seems such a waste that i am losing the potential of the full array (another 35+% or power). ideas suggestions welcome. 

I think @Reed_Richards has a system like that; the inverter limits his export but that's net of his own consumption. Hopefully he'll give you the full SP.

My inverter is made by a company called Goodwe; I have never seen them mentioned on this forum but it came as part of the system.  It controls the export in software so my house can use more solar power if more power is available.  It runs a battery which is in my loft and connected to the DC side of the inverter.  It can switch the battery to act as a back-up in the event of a power failure and it logs data to a central store somewhere so, I think, I can view the performance of my panels online for every day since I enabled that facility (coming up to 3 years).   

Starfrog

Interesting could you share photos and is there a daily real-time data collection available via remote ? 

shavy65

Hi guys, been interested in Battery Storage for my Solar PV system for a long time and been getting excited as the install prices gradually fall....
I`ve now had a quote from Greener Energy Group who have offered a 5 Kwh battery and inverter for £5800. Im assuming this seems slightly expensive for the amount of storage I`d actually be getting? They offer an interest free loan 0% for up to £6k for us living in Scotland.
I`ve asked them to revise the quote for x2 of these batteries, any thoughts?
I`m really not clued up enough on the in`s and out`s of storage to make a proper informed decision as it stands, TIA.