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Midnite Solar is developing what will
in essence be an "E-Panel for the Sunny Island". I believe that it
is in partnership with SMA-America, given the need for so many
third-party components in Sunny Island systems. Midnite is also
developing a transformer under the same auspices. My understanding
is that products will be shipping in 4-6 months.
Allan
Allan Sindelar
On 10/5/2012 9:13 AM, August Goers wrote:[email protected] NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder and Chief Technology Officer Positive Energy, Inc. 3209 Richards Lane (note new address) Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com
I'm looking forward to checking out the SMA Smartformer. We're sending one of our guys to SMA training later this month to learn more about it is depth. Up to date, we used the Outback PSX-240 like the one found here to 120/240 step up:http://www.altestore.com/store/Enclosures-Electrical-Safety/Miscellaneous- Electrical-Parts/Transformers/Outback-PSX-240-Autotransformer-with-Fan/p40 89/ My experience with a handful of Sunny Island backup systems has been really good. The Sunny Island is a very solid piece of equipment and is easy to program if the plan is properly thought through and everything is wired properly. Good luck with your project! -August -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dave Click Sent: Friday, October 05, 2012 6:01 AM To: RE-wrenches Subject: Re: [RE-wrenches] SunnyIsland - was AC coupling and Outback inverters Check out the new SMA Smartformer, though I'm not sure whether it's actually shipping yet. I'm thinking about this for my house eventually (SB5000US). http://www.sma-america.com/en_US/products/off-grid-and-back-up-solutions/s martformer-for-sunny-island.html Alternatively, the new SMA TL inverters (at least the 3, 4, and 5kW units according to the press release) have an "Emergency Power Supply" function that can provide backup power (12A?) during the day when the grid is down. This may meet your customer's requirements. No batteries required, though since the TLs require ungrounded arrays, you may need to rewire the existing array to be compliant with 690.35 (PV Wire or raceway). On 2012/10/5 8:41, Kirk Herander wrote:One Question: Output of the SunnyBoy is 240vac. So this is fed to the critical load panel, of which the SunnyIsland 120 vac output is fed to. So we need a 120/240 step up transformer between the SunnyIsland and the critical load panel to fully take advantage of the Sunnyboy array for battery charging, correct?. Kirk Herander VT Solar, LLC dba Vermont Solar Engineering NABCEP^TM Certified installer Charter Member NYSERDA-eligible Installer VT RE Incentive Program Partner 802.863.1202 *From:*[email protected] [mailto:[email protected]] *On Behalf Of *David Katz *Sent:* Friday, October 05, 2012 2:11 AM *To:* RE-wrenches *Subject:* Re: [RE-wrenches] AC coupling and Outback inverters Hi Kirk, All of the Outback inverters will work AC coupled (GT and FX) as will any bi-directional H-bridge type inverter. I have used old Trace SW's, SunnyIsland, Apollo TSW, Magnum AE and now I am using an Outback Radian to do exactly what you are talking about. I have 6 kW of grid tie inverter and an additional 4kw of modules running through a Xantrex 600 volt charge controller to the batteries that the Radian runs on. It all works flawless as long as you have a provision for protecting the batteries when the gid is down and the grid-tie PV system is making more power than the loads are using. If the customer has SMA inverters, I would recommend using a SunnyIsland because the battery control when the grid goes down is soelegant.Everything else is a bit of a kludge. David Katz CTO & Founder AEE Solar Inc P: 707 825-1200 F: 707 825-1202 [email protected] <mailto:[email protected]> www.aeesolar.com <http://www.aeesolar.com> *From:*[email protected] <mailto:[email protected]> [mailto:[email protected]] <mailto:[mailto:[email protected]]> *On Behalf Of *Kirk Herander *Sent:* Thursday, October 04, 2012 2:11 PM *To:* RE-wrenches *Subject:* [RE-wrenches] AC coupling and Outback inverters I have AC-coupled an Outback quad-stack with multiple SunnyBoy 6000US inverters and it's been running fine for 4 years. I used the off-grid version of Outbacks. Now I have an application where a customer wants to add battery backup to an existing SunnyBoy 5000US system. And expand his array by a couple KW. So I'm thinking of using a GT Outback w/ batteries to handle the critical loads and feed the extra 2kw of PV (charging the batteries through an MX60) to the grid. And I'd like to AC-couple the SunnyBoy so the original 5 kw array can also charge the batteries, BUT I remember, at least I think so, that the GT inverter cannot be AC-coupled, only the off-grid version. Is this correct? Thanks. Kirk Herander VT Solar, LLC dba Vermont Solar Engineering NABCEP^TM Certified installer Charter Member NYSERDA-eligible Installer VT RE Incentive Program Partner 802.863.1202 _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Options & 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: [email protected] Options & 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: [email protected] Options & 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 |
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