User avatar
RegGuheert
Posts: 5430
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: The Enphase Energy Management System

Thu Oct 06, 2016 1:50 pm

drees wrote:
RegGuheert wrote:I cannot understand why the S-Series Micoinverters would be required to allow for this capability.

I believe that the footnote only relates to "power export limiting" since only the S series inverters presumably have the ability to limit their production to anything besides on/off.
That makes sense.

I was thinking in terms of using the Envoy-S together with the AC Battery to limit power export limiting, but based on your comment I can see that it really means limiting export power IN THE ABSENCE OF ANY AC BATTERIES. That could absolutely have value, particularly in locations where there is little or no value in exporting. In my case, I could have used this when I first turned on my system since my meter charged me for electricity flowing in EITHER direction. In that case, exporting electricity had NEGATIVE value, so I would have utilized this feature right away!

It is a bit interesting that there is no mention of this capability included on the datasheet for the S-series microinverters. Further, since I expect that the fourth-generation microinverters almost certainly employ digital control algorithms that they could be updated via firmware to provide the same feature. Assumedly Enphase has decided that it is not worth the engineering effort to implement such a feature on the older units.
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

User avatar
RegGuheert
Posts: 5430
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: The Enphase Energy Management System

Wed Feb 22, 2017 9:08 am

Enphase has announced that U.S.-based installers can now place orders for the AC Battery:
Enphase Energy Blog wrote:Enphase was first to market with a residential energy storage solution that holds UL certification for 2017 National Electrical Code standards. Like all Enphase technology, the storage system achieves industry-leading performance and safety.

Ready to get started? Contact your distributor to order the Enphase Storage System today.
Also, this is what a banner at the top of Enlighten has to say about the matter this morning:
Enlighten Banner wrote:Enphase is introducing new features for AC Battery and Self-suppy/No Export systems. Newly-installed Envoys will be upgraded automatically when connected to Enlighten.
I suppose that is referring to Envoy-S-based systems.
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

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