Inverter Load Analysis [RE-wrenches]

[Todd Cory, Mt. Shasta Energy Services]

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Our moisture is seasonal, in the winter. Because of that it is not 
practical to size a off grid system for the winter. To size for the 
winter would require an impractical, gigantic battery bank.

I size for no generator use for the 7 or 8 months of full sun weather we 
have and advise the customer that some generator run time will be 
necessary in the winter.

Todd


Barbra Kerr wrote:

> Jonathan-
> Your comment about sizing for summer came as a surprise to me, as I 
> was trained to design for winter.  I understand all too well the 
> rationale for doing so, as I have lost too many bids in the 
> low-competition off-grid market in my area.
> Question to all off-grid Wrenches:  Do you do this as well?  If 
> sometimes - What (besides the clients budget) is your determining 
> factor to design summer vs winter?
> Thanks
> Barbra K Kerr
> President
> Kerr Enterprises, Inc
> 1-800-886-2258
> Jonathan's comment about sizing for summer
>
>>>>
>>> Ray-
>>
>>
>> To keep costs reasonable, I usually size systems for summer 
>> conditions. When it's less sunny, they can supplement with the genny 
>> until they can afford more modules. customers tend to use a lot less 
>> power when the option is the generator.
>> -- 
>> Jonathan Hill, solar applications engineer
>>

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