Powering a milking parlour with solar/batteries

[wanton dwarf]

I asked that as im not wantin to export but he said definitely not as ni electric has a say what u can do but mabe the laws different in ni

We think along the same lines.

Government wants something for nothing as usual.

So we'll also look to not be connected to the grid by hook or by crook.

 

[renewablejohn]

My thoughts on steam are more along the lines of self generation of energy rather than power stations steam turbines - as I understand it, we cannot afford this technology on a farm scale ?

So I'm thinking more along the lines of a cylinder steam engine.

My two girls are cylinder steam engines the more efficient engines I am looking at are screw expanders. Farm scale is no longer a problem with so many people now offering screw expanders at really small scale and low temperatures.

 

[daveydiesel1]

We have just went through it 30kw system with three phase installed is was coming in at £18000 - £20000. Not sure what batteries size as not a written quote but a battery setup to match the system was £6500.

Iv been told that the battery is around £500 per kw so a 40kw battery is costin around 20k plus 3 k for a charger

 

[daveydiesel1]

So just couple of sales visits. Decided to go for 20kw panels and a 40k battery. Wont eliminate the bill in winter but should in summer. Can always add more down the line if i want

 

[YELROM]

Iv been told that the battery is around £500 per kw so a 40kw battery is costin around 20k plus 3 k for a charger

What is the expected life span of the battery

 

[daveydiesel1]

What is the expected life span of the battery

Guaranteed for 10 years but the man says it should do a good amount more. Panels are german built and guaranteed for 30 years

 

[idgni]

I asked that as im not wantin to export but he said definitely not as ni electric has a say what u can do but mabe the laws different in ni

you can definitely add more panels if you want, you just cant connect them to the Grid,
I have a 20kw array, i know someone who added another 15% as they are only producing 85% on a good day so allowing him max output.

 

[daveydiesel1]

you can definitely add more panels if you want, you just cant connect them to the Grid,
I have a 20kw array, i know someone who added another 15% as they are only producing 85% on a good day so allowing him max output.

Yes found that out today. The answer varies accordin to who u ask

 

[Exfarmer]

So just couple of sales visits. Decided to go for 20kw panels and a 40k battery. Wont eliminate the bill in winter but should in summer. Can always add more down the line if i want

From your usage I think that is too big a battery

 

[wanton dwarf]

Guaranteed for 10 years but the man says it should do a good amount more. Panels are german built and guaranteed for 30 years

If you don't mind me asking what make are the Panels and Batteries ?

 

[daveydiesel1]

If you don't mind me asking what make are the Panels and Batteries ?

I think theyr called solarwatt glass to glass panels and i think the batterys are the same afaik

 

[e3120]

Please keep us updated on progress. Are you willing to share a price ballpark?

 

[daveydiesel1]

Please keep us updated on progress. Are you willing to share a price ballpark?

Yes full deal turn key is 37k. Reckon itl be around 5-6 years payback but thats fine by me

 

[jay]

Yes full deal turn key is 37k. Reckon itl be around 5-6 years payback but thats fine by me

Did you get the system in? If so how are you getting on with it.

 

[daveydiesel1]

Did you get the system in? If so how are you getting on with it.

Yes put in around may time. Works very well when theres sun. These days arent great but in december i was still getting around 40% charge rate, be more like 10-20% now if even some days

 

[Mr Gus]

Iv been told that the battery is around £500 per kw so a 40kw battery is costin around 20k plus 3 k for a charger

I banged up a link especially for folk such as yourself to check out Davey.

If you have the incentive to do it & potentially save some cash.. let us know it would be interesting to see a larger scale battery project..
(no rocket science involved)

Idiot's guide to a self build battery - camelot-forum.co.uk

FYI several other people followed Joe's lead & have also completed pretty quickly their batteries (including lead time for the batteries from overseas) ..take heart, have a read, ask questions (also note you mention single phase supply so no confusion) obviously do the math, you can get a quote for cells from our preferred supplier who pops into the forum link.

Potentially a lot of money to be saved from the cost for not much work, if you follow the thread to the current page you'll see one guy (Caesium) has spent a bit more on a decent carbon conductive grease to assist cell balancing, a good move

see here https://camelot-forum.co.uk/phpBB3/viewtopic.php?f=14&t=1194&hilit=idiots+guide&start=680#p30294

 

[daveydiesel1]

Iv already fitted panels and batteries though

 

[Mr Gus]

Iv already fitted panels and batteries though

You said it yourself about potential need for upgrade down the line, considering the battery in a box cost, (& lack of easy supply currently) piggyback option is there, cost savings potential too..

Worth a look & doing some math to have at hand if you need it but money is tight, if you can simply afford off the shelf at a massive mark up from within your budget then lucky you, the fella in the thread already had off the shelf kit & decided to simply double up, others see that they can cover the cost of their kit by selling their pre-exisitng (mainly) pylontech batteries & go much bigger via simple diy.

How much of the energy is useable in your kit was it the full amount quoted or a percentage held in reserve (as is normal for battery protection)

 

[daveydiesel1]

Discharge at 6kwh and 95% usable

 

[Mr Gus]

Thanks Davey, I'll go back a few posts & see what kit it was etc when I have some time.