Red T

F

f0ster

Member
not got one but looked in to it quite a lot, they are claiming 20 year life span with minimal degradation and power reduction over time period. could be worth while if you can charge it up from your own solar or wind. one of my customers has a 100kw turbine but he still has a significant electric bill because it does not always blow when he needs the power.
 
Ukjay

Ukjay

Member
Location
Wales!
f0ster said:
not got one but looked in to it quite a lot, they are claiming 20 year life span with minimal degradation and power reduction over time period. could be worth while if you can charge it up from your own solar or wind. one of my customers has a 100kw turbine but he still has a significant electric bill because it does not always blow when he needs the power.
Click to expand...

That is what intrigues me - they claim that you can deplete all the power and it has no affect on the battery performance due to how the liquids do not have the memory as like normal batteries. The vanadium redox flow intrigues me somewhat, thus \i am trying to learn more.
 
F

f0ster

Member
you have two sets of plates similar to a lead acid battery but the pos and the neg plates are kept separate with a membrane, there is no electrolyte within the plates, it is kept separate in two tanks, a pos tank and a neg tank, when you want power you pump the electrolyte through the plates (both half's) and as it is being pumped through you produce power, you do the reverse to charge it, ie, pump the electrolyte as you charge it. the power is stored in the electrolyte so in reality you can have a large store of power such as 10kw of power for 5 hours duration or 5kw for 10 hours, there are different combinations, I think each set of plates delivers a set amount of power and for more you double them up. there are quite a few manufacturers in the states doing these. they use vanadium oxide or something like that, some uni grads down south made a one in the lab on a small scale.
 
Ukjay

Ukjay

Member
Location
Wales!
f0ster said:
you have two sets of plates similar to a lead acid battery but the pos and the neg plates are kept separate with a membrane, there is no electrolyte within the plates, it is kept separate in two tanks, a pos tank and a neg tank, when you want power you pump the electrolyte through the plates (both half's) and as it is being pumped through you produce power, you do the reverse to charge it, ie, pump the electrolyte as you charge it. the power is stored in the electrolyte so in reality you can have a large store of power such as 10kw of power for 5 hours duration or 5kw for 10 hours, there are different combinations, I think each set of plates delivers a set amount of power and for more you double them up. there are quite a few manufacturers in the states doing these. they use vanadium oxide or something like that, some uni grads down south made a one in the lab on a small scale.
Click to expand...

Do you have any links to the other companies that make these kinds of units - as it will be interesting reading up further?
 
F

f0ster

Member
it is a large battery of similar construction to a lead acid battery except the plates that deliver the charge in a this flow battery are constructed as pos in one cell stack and neg in another cell stack, they are then separated by a membrane, the electrolyte that holds the charge in these is held in two separate tanks, a pos tank and a neg tank. when you want power the electrolyte is pumped through the two banks of plates, when you want to charge these the electrolyte is once again pumped through the plates, you can have a reservoir of electrolyte of whatever size you want in order to increase the kw capacity of the battery. to deliver more kw you double up the cell stack or more. they are claiming 20 year life span for the ones in the states, with minimal degradation of performance over the 20 years.not sure about this one yet. for someone with a large solar array or a wind turbine it enables you to use your own electricity anytime you want instead of only when the turbine/solar is producing.
there are lots of combinations or power output such as 10kw for 15 hours duration. or 5kw for 30 hours duration. there are far to many combinations to list here. they have 100% depth of discharge without any detrimental effects to the battery.
 
Last edited:
DC21

DC21

Member
Need to be careful with your FiT schemes. You get paid to generate provided the energy is used on site or export.. last time I checked storing energy was not within the legislation.
 
Exfarmer

Exfarmer

Member
Location
Bury St Edmunds
DC21 said:
Need to be careful with your FiT schemes. You get paid to generate provided the energy is used on site or export.. last time I checked storing energy was not within the legislation.
Click to expand...
I think provided the power is used in some fashion rather than being wasted it still qualifies for FITs, even if you are sub 30kw and not exporting at all
 
R

Rhubarb10690

New Member
Ukjay said:
That is what intrigues me - they claim that you can deplete all the power and it has no affect on the battery performance due to how the liquids do not have the memory as like normal batteries. The vanadium redox flow intrigues me somewhat, thus \i am trying to learn more.
Click to expand...

they have a video on youtube that seems to explain it quite well
 
Ukjay

Ukjay

Member
Location
Wales!
farmerfred86 said:
I asked for a quote recently but haven't heard anything back yet. That alone gives me cause for concern!?
Click to expand...

Doesn't sound very good - but quite often in this day and age, company firewalls chuck a lot of relevant communications into the spam filter unfortunately, as it searches words it thinks are harmful.
 

SFI - What % were you taking out of production?

  • 0 %

    Votes: 102 41.5%

  • Up to 25%

    Votes: 90 36.6%

  • 25-50%

    Votes: 36 14.6%

  • 50-75%

    Votes: 5 2.0%

  • 75-100%

    Votes: 3 1.2%

  • 100% I’ve had enough of farming!

    Votes: 10 4.1%
See comments…

May Event: The most profitable farm diversification strategy 2024 - Mobile Data Centres

Apr 02
  • 768
  • 11
With just a internet connection and a plug socket you too can join over 70 farms currently earning up to £1.27 ppkw ~ 201% ROI

Register Here: https://www.eventbrite.com/e/the-mo...2024-mobile-data-centres-tickets-871045770347

Tuesday, May 21 · 10am - 2pm GMT+1

Location: Village Hotel Bury, Rochdale Road, Bury, BL9 7BQ

The Farming Forum has teamed up with the award winning hardware manufacturer Easy Compute to bring you an educational talk about how AI and blockchain technology is helping farmers to diversify their land.

Over the past 7 years, Easy Compute have been working with farmers, agricultural businesses, and renewable energy farms all across the UK to help turn leftover space into mini data centres. With...
News
Continue…

Share this page

Top