[RE-wrenches] Ni-Fe update?

[Ray]

Charge efficiency is really low,  Charging parameters can be hard to get 
right, Voltage is not stable under heavy loads, and they are really 
expensive to boot.  I've never sold them for these reasons, but I have 
replaced some sets that customers were unhappy with.  They seem to work 
OK, only if there are no large surge loads, and the battery and array 
are sized large enough. Unfortunately because of the cost, folks seem to 
really under size them, which only exasperates the above issues.

There's good reasons this old battery chemistry has not been widely 
adopted by the solar industry.  It does have its place, and I understand 
the train industry uses it because A) they have cheap on grid charging 
available, so efficiency doesn't matter, and B) they have telecomm type 
loads with very little surge.

Ray Walters
Remote Solar
303 505-8760

On 11/21/18 10:55 AM, dan at foxfire-energy.com wrote:
> Hi Guys, I have a potential customer inquiring about installing a pre 
> packaged Iron Edison system.. I recall hearing strange stories about 
> Ni-Fe batteries but don't recall the specifics. I have done a few 
> searches with mixed results.. And have friends advising I run like a 
> Rabbit.. Thought I'd run it by you folks for an update..
> Thanks, and Happy Turkey Day.
>
> db
>
>
> Dan Brown
> Foxfire Energy Corp.
> Renewable Energy Systems
> (802)-483-2564
> www.Foxfire-Energy.com <http://www.Foxfire-Energy.com>
>
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