diy solar

diy solar

Prices dropping, will this continue?

Ah, in that case do you know engineering?

I worked for many years at Flextronics.
Michael Marks (Harvard MBA) organized the investors who put together the new incarnation (after previous through-hole board stuffing company), grew it mostly through mergers and acquiring factories to $20B. Bought the Warriors. "Retired" to run a VC.

But anyway, "Race to the Bottom" isn't he only way to run a company.
With rising utility rates LG may get away with such high priced equipment, but the numbers aren't compelling.
I would expect only a small market for PV/battery systems that aren't price competitive.

At this time, the turn-key GT PV market is priced around 3x to 6x what hardware costs.
Utility scale PV is much closer to hardware costs.

There ought to be cost-effective systems for home users. But the regulatory agencies will do their best to torpedo the market, protect the utilities.
 
$50/kWh factory selling price * 1.5 dealer markup + $25/cell shipping = $100/kWh delivered to USA. Seems about what we have been paying so far except for cells of unknown quality.
 
Ah, in that case do you know engineering?

I worked for many years at Flextronics.
. . .
Yes, BS in engineering and an MBA . . . what we called "MBA-Tech" back in the day. Flextronics . . . I recall them being in Massachusetts along I-495.

I worked for Data General in Soutbroro MA coming out of school. Then spent some time on the west coast as well in MA working in the electronics industry. Finally ended up in the software industry doing I.T. stuff.
 
Last edited:
When I started planning my LiFePO4 upgrade last year, 100 Ah batteries were about $500. When I bought them recently they were down to about $300. I would expect continuing price drops, but it is hard to say how much. I think the more pricey batteries will probably come down more so than the economy priced . . . (i.e. the higher you are the further you can fall :ROFLMAO: )
280/300Ah 12V are approaching $500 including shipping. So $2k for a 48V 14/15kWh battery with comms from China doesn't seem out of the bounds of possibility.
 
280/300Ah 12V are approaching $500 including shipping. So $2k for a 48V 14/15kWh battery with comms from China doesn't seem out of the bounds of possibility.
The boxes I am getting are costing $1160.00 for a 24v 8s box(7296kwh) My next order will be a little less than that. That is ordering 32 grade A 304ah cells with four complete box kits with jk smart BMS, screens, on/off switches, flexible buss bars, 200amp breakers and front terminals.

6DE2E514-B6CC-4337-BD06-C5E1E35C322B.jpeg
 
1/4 the price of PowerPro!

Are you sure? We've seen 100 Ah around that.
 
Last edited:
That's insane. I'm considering canceling my order. How long is the shipping time?
~40 days.

I had mine custom-made, so production might’ve taken a little longer. But I have seen pictures of what they made for me on their website. So maybe they’re making them already…

“Production/Aging Testing/Assembly is ~30 days”
 
For what I needed, the 100AH Power Queen fit the need quite nicely.
Just bought a Redodo 100ah 12 volt for $200 on Amazon. If you keep looking they will periodically stack discounts. Started at $249 minus 10%, minus a promo. Good for only one. So buy one at a time. 😃. I bought some a while ago for sub $200. But they are trying to hold up prices. This is a full size, not a mini. I have several of these. They all test at about 105ah.
The 100ah batteries are very handy.
 
Batteries prices are declining since Sep 2023. But since last month, most of the batteries prices are stable.
The material price of battery level lithium carbonate does not have much changed.
We have also brought down the price recently.
Brand new 2024 4 pcs Grade A EVE 280Ah cells with factory data - free ship to door is around 329usd in evcomponents.com.
EVE 280K - 61usd
EVE 230K - 47.5usd
EVE 105K - 33.9usd
EVE 50K - 23.9usd
 

Attachments

  • he material price of lithium carbonate.png
    he material price of lithium carbonate.png
    22.3 KB · Views: 7
+$47/cell shipping to FL
No need to use expensive air shipping. Use Sea Shipment to door 329usd for 4pcs. Means 82.25usd/pcs to FL. Deliver to FL is fast about 40 days.
This is really low prices you can find for brand New Gade A EVE 280K cells.
Of course, Higree, Hthium cells can be a bit more lower prices from evcomponents.

All air shipping for batteries - special type is expensinve. That's cost from those shipment agent. So we mainly recommend sea shipment to door for heavy cargo.
 
Last edited:
No need to use expensive air shipping. Use Sea Shipment to door 329usd for 4pcs. Means 82.25usd/pcs to FL. Deliver to FL is fast about 40 days.
This is really low prices you can find for brand New Gade A EVE 280K cells.
Of course, Higree, Hthium cells can be a bit more lower prices from evcomponents.

All air shipping for batteries - special type is expensinve. That's cost from those shipment agent. So we mainly recommend sea shipment to door for heavy cargo.
Is this correct, v3 is half the charge/discharge rate of V2? Or just nonsense?

"QUICK OVERVIEW
This is EVE 280K V2 version which is Max Charge 1C 280Ampere and Max discharge 1C 280Ampere. There are another EVE 280K V3 version which is Max 0.5C 140Ampere Charge and 0.5C 140Ampere discharge. V2 EVE280K with higher charge discharge rate. V3 EVE280K with lower C rate but 5% higher real capacity than V2 EVE 280K. Just order the version you need in your application. EVE 280K V2 Real capacity around 297Ah. EVE 280K V3 Real capacity around 310Ah"
 
Is this correct, v3 is half the charge/discharge rate of V2? Or just nonsense?

"QUICK OVERVIEW
This is EVE 280K V2 version which is Max Charge 1C 280Ampere and Max discharge 1C 280Ampere. There are another EVE 280K V3 version which is Max 0.5C 140Ampere Charge and 0.5C 140Ampere discharge. V2 EVE280K with higher charge discharge rate. V3 EVE280K with lower C rate but 5% higher real capacity than V2 EVE 280K. Just order the version you need in your application. EVE 280K V2 Real capacity around 297Ah. EVE 280K V3 Real capacity around 310Ah"
V2 used 1C to test in EVE and V3 used 0.5C to test. So there are some difference in cycle life.
The engineer from EVE told us that both of them does not have much difference.
Below link is V3
https://www.evcomponents.com/eve-3-2v-280ah-prismatic-lifepo4-cell-280kv3.html
 
I think if you're buying direct from China it is good to buy now. If you're buying locally, many batteries are still expensive and the sellers either didn;t realise they are thrying to overvalue them by 30% in today's market or are just hoping buyers don't notice.

I second the advice, if you need cells, buy them now. I'm doing that and I'm not having an easy time getting them. I had to switch from 100AH to 280AH raising my cost signifficantly for the 16S battery - just because no-one has 100AH in Europe in good prices now, while 280AH were available at a very good discount. Likewise with 100ah 24V complete batteries. You either get - not in stock, 45 days wait (despite the fact it may say next day delivery until you pay), or you get a substandard product I described in another thread.

This was not the case 3 months ago. Personally I think two things happened. 1 - buyers around here noticed cheaper prices and decided to buy-buy-buy. Some importers noticed dropping prices around January and decided to delay their early February orders in hope(or in fear) prices will drop even more so the product arrived to a cell-starved market around late March and got sold immediately. This way there is no 100AH cell to be had in the EU unless you're willing to pay 2x the price. Earliest I'm told this will resolve is beginning of June.
 
Back
Top