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 <ja...@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 <dahlso...@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 <nsol...@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 <dahlso...@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 >>>> >>>> >>>> >>>> >>>> >>>> Sent from my iPhone >>>> _______________________________________________ >>>> List sponsored by Home Power magazine >>>> >>>> List Address: RE-wrenches@lists.re-wrenches.org >>>> >>>> Change email address & settings: >>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>> >>>> List-Archive: >>>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>>> >>>> List rules & etiquette: >>>> www.re-wrenches.org/etiquette.htm >>>> >>>> Check out participant bios: >>>> www.members.re-wrenches.org >>> >>> >>> >>> -- >>> Cordially, >>> Nick Soleil >>> Field Applications Engineer >>> Enphase Energy >>> Mobile: (707) 321-2937 >>> >>> Enphase Commercial Solar. Limitless. >>> >>> 1420 North McDowell >>> Petaluma, CA 94954 >>> www.enphase.com >>> P: (707) 763-4784 x7267 >>> F: (707) 763-0784 >>> E: nsol...@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 >>> >>> This email message is for the sole use of the intended recipient(s) and may >>> contain confidential and/or privileged information. If you are not an >>> intended recipient, you may not review, use, copy, disclose or distribute >>> this message. If you received this message in error, please contact the >>> sender by reply email and destroy all copies of the original message. > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Change email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org >
_______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
