[RE-wrenches] Clipping

[Jason Szumlanski]

Yes, Southwest Florida. You're right about the availability of modules.
People look at me like I have three heads when I tell them a 185W and a
250W module are about the same price, but that's the world we're living in.
We always need to consider price efficiency in addition the the electrical
and mechanical specifications of the equipment we sell and install.

*Jason Szumlanski** *

*Fafco Solar*

*
*

On Fri, Mar 22, 2013 at 6:16 PM, Jesse Dahl <dahlsolar at gmail.com> wrote:

> Interesting. Jason you're in FLA right?  I'd like to hear from a northern
> installer who's put in a similar group of enphase.  That's exactly the type
> of info I'm looking for.  Like you mention, this might all be a waste if
> time when you consider module price.  I'm having a hard time getting
> modules under 250W now anyway...
>
> Jesse
>
> Sent from my iPhone
>
> On Mar 22, 2013, at 4:40 PM, Jason Szumlanski <jason at fafcosolar.com>
> wrote:
>
> We now have 230W, 235W, 240W, 245W, and 250W modules on Enphase M215's in
> the field. Initial anecdotal evidence shows that the 250W modules are doing
> better in our area, even when the cost comparison is taken into account
> (normalized for $/watt). I don't have a full year of data yet, but I plan
> to do a non-scientific analysis once I do. Of course, the "sweet spot" in
> any given year will be different.
>
> As with many things, the PV cost as a percentage of total installed price
> is making this quandry less important. Go BIG is becoming the safe bet when
> it's a minimal cost comparison.
>
> *Jason Szumlanski** *
>
> *Fafco Solar*
>
> On Fri, Mar 22, 2013 at 5:23 PM, Jesse Dahl <dahlsolar at gmail.com> wrote:
>
>> Understood. I guess the point/question was, a 250W module with a 215W
>> micro would "flat top" a heck of a lot of power where I live during the 6
>> months of winter we have. I've sized my system to account for increased
>> production during this time. I guess it comes down to sizing. I find it
>> hard to do the 250W to 215W systems seeing what my system does on a regular
>> basis. I'd like to see hard numbers from an enphase system showing the
>> gains on the knee of the curve compared to "flat topping".
>>
>> Jesse
>>
>> Sent from my iPhone
>>
>> On Mar 22, 2013, at 1:11 AM, Nick Soleil <nsoleil at enphaseenergy.com>
>> wrote:
>>
>> Hi Jesse and Wrenches,
>>
>> One thing that should be understood about the production readings from a
>> DC optimizer system is that the module level readings are in DC.  That is
>> the production before being converted to AC, and does not account for the
>> losses of the inverter.  It isn't really an apples to apples comparison to
>> equate that production reading to the 225watt max output of the Enphase
>> M215.
>>
>>
>> On Thu, Mar 21, 2013 at 8:24 PM, Jesse Dahl <dahlsolar at gmail.com> wrote:
>>
>>> Hello,
>>>
>>> Marco's email about Power-1's micros reminded me to send this screen
>>> shot.
>>>
>>> This is from my system at home.  It consists of 9 210W Kyocera modules,
>>> Tigo optimizers and a 2kW PV Powered inverter.  It was very cold and clear
>>> on this day, but every sunny day this winter I've seen numbers similar to
>>> this at some point each day. I was trying to keep track of the amount of
>>> power over the STC rating of the modules, but its getting to be a huge
>>> project. I have hours each day that produce over the 210W.
>>>
>>>
>>> Here is the link to my system. It shows each modules temp, Vdc, Adc and
>>> power.   I don't have the irradiance meter because of cost.
>>>
>>> http://www.tigoenergy.com/site.php?181428c8-1402
>>>
>>> Jesse
>>>
>>>
>>>
>>>
>>
>>
>> --
>>
>> Cordially,
>>
>> *Nick Soleil*
>>
>> *Field Applications Engineer
>> *
>>
>> *Enphase Energy*
>>
>> Mobile: (707) 321-2937
>>
>>
>> **
>>
>> *Enphase Commercial Solar.* *Limitless.*<http://www.enphase.com/commercial?utm_source=email&utm_medium=sig&utm_campaign=Comm2012>
>>
>> *
>> *<http://www.enphase.com/commercial?utm_source=email&utm_medium=sig&utm_campaign=Comm2012>
>>
>> 1420 North McDowell
>>
>> Petaluma, CA 94954
>>
>> www.enphase.com <http://www.enphaseenergy.com/>
>>
>> P: (707) 763-4784 x7267
>>
>> F: (707) 763-0784
>>
>> E: nsoleil at enphaseenergy.com
>>
>> <image002.jpg> Certified Solar PV Installer #03262011-300
>>
>> “Don’t get me wrong: I love nuclear energy! It’s just that I prefer
>> fusion to fission. And it just so happens that there’s an enormous fusion
>> reactor safely banked a few million miles from us. It delivers more than we
>> could ever use in just about 8 minutes. And it’s wireless! .”
>>
>> - William McDonough
>>
>>    www.members.re-wrenches.org
>
>
>
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