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Murdoch

Wonder how much this set up cost??????

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Murdoch

One of my customers has just had this installed:

 

Solar.jpg.6160d9e57edaf84b440dea57c3330077.jpg

 

excluding the food mixer & accessories

Edited by Murdoch

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roys

Take it they have solar panels. Like the colour scheme of the battery bank😀

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Sharpend

Never seen such a large Duracell battery, what voltage is that!! Is it an oversize 9v battery!! 

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roys

Wait till you see the size the door bell

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ProDave

I would love to see the return on investment, and payback time calculations.

 

Every time I try and crunch the numbers, even for a DIY battery storage system, it will never pay for itself before the batteries need replacing.

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binky

that's at least £6k, probably nearer £8k depending on the battery size. 

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binky
2 minutes ago, ProDave said:

I would love to see the return on investment, and payback time calculations.

 

Every time I try and crunch the numbers, even for a DIY battery storage system, it will never pay for itself before the batteries need replacing.

 

the numbers tend to work out at about 12 year payback, based on single charge/ discharge per day. You can enhance this with grid-trading, but as that pays about 5p per kWh it seems daft to spend so uch to gain so little. If,  you can charge / discharge battery several times a day, it does make a big difference to pay back times, but this is an unlikely scenario for most people. Persoanally I reckon you are better off with an electric vehicle that is 'at home' a lot (ie you are retired). Some of the solar inverters have EV charging built in, you then want a unit that can be programmed to charge up car only when surplus leccy is being generated by a set of solar panels. Evn ths doesn't give great pay back, but if you hate paying money to utility companies, it may suite you? 

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Murdoch
21 minutes ago, binky said:

that's at least £6k, probably nearer £8k depending on the battery size. 

 

Is that for the battery only?

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binky
13 minutes ago, Murdoch said:

 

Is that for the battery only?

being a brand like Duracell, very possibly. I've not looked at their gear so don't know their prices. 

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boydy88

That Duracell battery is A BYD battery in a pretty frock. It's only a out 3.3kWh but 100kg. It's a beast and outdated, the next gen is supposed to be good. The Social Energy stuff is a good though. 

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binky
1 hour ago, boydy88 said:

That Duracell battery is A BYD battery in a pretty frock. It's only a out 3.3kWh but 100kg. It's a beast and outdated, the next gen is supposed to be good. The Social Energy stuff is a good though. 

have you had much experience with social energy?

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boltonsparky
On 30/09/2020 at 18:59, binky said:

 

the numbers tend to work out at about 12 year payback, based on single charge/ discharge per day. You can enhance this with grid-trading, but as that pays about 5p per kWh it seems daft to spend so uch to gain so little. If,  you can charge / discharge battery several times a day, it does make a big difference to pay back times, but this is an unlikely scenario for most people. Persoanally I reckon you are better off with an electric vehicle that is 'at home' a lot (ie you are retired). Some of the solar inverters have EV charging built in, you then want a unit that can be programmed to charge up car only when surplus leccy is being generated by a set of solar panels. Evn ths doesn't give great pay back, but if you hate paying money to utility companies, it may suite you? 

 

It might be what you're meaning anyway but I think it might be tesla that you can use the car as the battery or an additional battery, obviously only when it's plugged in. 

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binky
53 minutes ago, boltonsparky said:

 

It might be what you're meaning anyway but I think it might be tesla that you can use the car as the battery or an additional battery, obviously only when it's plugged in. 

 

Tesla aren't the only innovators, but frankly I don't see the benefit of using the car battery, unless you only drive once a week.

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NozSpark
1 hour ago, boltonsparky said:

 

It might be what you're meaning anyway but I think it might be tesla that you can use the car as the battery or an additional battery, obviously only when it's plugged in. 

 

I saw something about this on the news a month or so ago.... IIRC they have trialing using EV's as battery storage, feeding back into the grid at peak demand and charging at low demand (obviously they're selling the electricity at more than they're buying it) .... again IIRC the guy that they were talking to had a Zoe or Leaf and had made about £1k in the previous 12 months.... the charge point with inverter built in cost something like £5k

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binky
On 07/01/2021 at 00:24, NozSpark said:

 

I saw something about this on the news a month or so ago.... IIRC they have trialing using EV's as battery storage, feeding back into the grid at peak demand and charging at low demand (obviously they're selling the electricity at more than they're buying it) .... again IIRC the guy that they were talking to had a Zoe or Leaf and had made about £1k in the previous 12 months.... the charge point with inverter built in cost something like £5k

 

It's all part of 'smart networking' . Give it a few years and there will be a load of systems doing this, all running via t'internet, which is fine until that collapses as it does once in a while 

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NozSpark

I've just had an email today from Wallbox.... it seems that they've developed a "bi-directional" charge point that they're calling "Quasar"... no prices as yet from what I can tell but it'll be interesting.. especially if you can tie it in with the Octopus tariffs

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ProDave

I would NOT entertain the idea of using an EV battery for general house storage.

 

I saw a good analysis of a typical EV battery usage, given the range of the car on a full charge, and charging once when flat, then given the expected life of the battery in charge / discharge cycles, it was clear that the battery would last well in excess of 200,000 miles.  So in practical terms the battery should last the life of the vehicle.

 

Start charging and discharging it daily for house use as well and you would kill the battery life and it would be unlikely to do that same 200K miles.

 

That brings you to a good question to ask, if buying a second hand EV:  "Has the car battery ever been used for home or grid storage?"  If yes, the car should be devalued appropriately.

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binky

you can buy battery systems designed specifically to take advantage of 'smart grid' tariffs, I wouldn't waste a car battery for such purposes.

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SPECIAL LOCATION

Dunno why..

 

But my gut feeling is if you can afford to have an electric car plugged into your house supplying power back to the grid......

then you probably DONT need the electric car in the first place!!!!!!!!!!!!!!

 

:C

 

 

e.g. If you only have one car...   

its not much good having its fuel supply drained down so when you may need it it hasn't got enough capacity to go where you need to go,

without waiting several hours for it to charge it back up again!

 

Guinness   

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NozSpark

I think that the idea is to use them as short term boosts to the network, much like the Dinorwic hydroelectric dam.... and that you can set how much battery capacity you plan on needing, at a set time, and it works it out to ensure that happens..... on the other hand it would not do the battery any good having it constantly plugged in and at 100% at all... (that is something that kills the battery capacity over time)

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Sharpend

Oh and how long before the power companies want separate metering for EV incorporating a ‘smart’ meter function to give them control? 

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Murdoch
47 minutes ago, Sharpend said:

Oh and how long before the power companies want separate metering for EV incorporating a ‘smart’ meter function to give them control? 


or more likely the ability to charge more to charge EV’s

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NozSpark
10 hours ago, Sharpend said:

Oh and how long before the power companies want separate metering for EV incorporating a ‘smart’ meter function to give them control? 

 

A part of the approval for the OZEV grant for charge points is that they are "Smart"..... as well as giving the user more control of when the car is charged,,, it may give the DNO some load throttling ability in the future

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Sharpend

Smart is rarely in favour of consumer. 

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SPECIAL LOCATION
11 hours ago, Sharpend said:

Oh and how long before the power companies want separate metering for EV incorporating a ‘smart’ meter function to give them control? 

 

10 hours ago, Murdoch said:


or more likely the ability to charge more to charge EV’s

 

45 minutes ago, NozSpark said:

 

A part of the approval for the OZEV grant for charge points is that they are "Smart"..... as well as giving the user more control of when the car is charged,,, it may give the DNO some load throttling ability in the future

 

Well..... :|

 

If "Smart Meters" are anything to go by it will be a long time before they get any other "Smart" technology working reliably...  :yawn

 

It's certainly been at least 12 years, (2008 ish), maybe more since UK domestic smart meters started being fitted..

And they are still NOT working 100% reliably yet in Jan 2021!!!!!!!!!

 

So...  gawd help us if they are also trying to work out EV charging and/or supply back into the grid!!!

 

Theoretically with "Smart Meters" you will no longer get "Estimated" bills..   

But NO.. this is untrue!!!

So how would "estimated" power back into the grid work?????????????????????????????????????????????????  :C:shakehead:Chairfall

 

Just to back-up my above "allegations"..

1. Personally I don't have any aversion to the concept of "smart meters" 

2. We have had smart electric &  gas meters fitted since July 2008.

3. When the electric meter went round the clock.. (99999 back to 00000) the automatic calculation failed!!

4. New meter fitted..

5. Even with new meter the "accurate automatic correct billing" still doesn't work all of the time!

6. 7th of Jan 2021, bill is "ESTIMATED" for the electric aspect. (gas OK).

7. 26th of  Nov 2020, Supplier sends e-mail, admitting they have a problem with their "Smart Meters" and request you to log on to give "Manual Readings".

 

SO....

12+ years and they still haven't got the technology working reliably and correctly!!

 

I rest my case Your honour! :Salute

  

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