Grid-tie with battteryless backup [RE-wrenches]

[Ezra Auerbach, DragonSun Consulting]

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I think that some claim to provide battery less back up. I recall a  
few tries at that objective, a few years ago an inverter manufacturer  
brought out a large capacitor which was going to replace batteries in  
grid tie back up. None of them have apparently figured out how to  
account for changing insolation. From my point of view it seems a  
pretty dicey way to provide power stability, I don't think that you  
can beat batteries (yet).

Cheers,

Ezra

Ezra Auerbach
DragonSun Consulting
Lasqueti Island, B.C. V0R 2J0

ezra at lincsat.com
250 333 8650

On 4-May-08, at 7:36 PM, Mick Abraham wrote:

>
>
> Kurt Albershardt wrote:
>>
>> Do any of the batteryless grid-tie inverter systems allow for
>> disconnected operation when the grid is down?  Automatic
>> disconnect/re-connect would be ideal, but some sort of MTS  
>> arrangement
>> (double throw disconnect switch with aux contacts?) might also be
>> workable.
>>
> Mick says: Check out the EcoJoule 2500:
>
> http://ecopowercorp.com/
>
> I have no "hands on" with this but they claim operability without
> batteries and without the grid. The parent company is "Advanced Energy
> Conversion" in New York. Did I hear bad things about inverters under
> that brand in prior years?
>
> Mick Abraham, Proprietor
> www.abrahamsolar.com
>
>
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