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Recommend Enphase?

PostPosted: Wed Oct 11, 2017 11:22 am
by Different Computers
I'm at the very beginning of investigating going solar.

Do users here still all recommend Enphase? Good experiences? How valuable (in a literal $$ sense) do you find the Indigo integration? Do you wish you had gone with something else?

Re: Recommend Enphase?

PostPosted: Wed Oct 11, 2017 12:00 pm
by mclass
I have recently installed a 6kW system, and after investigation settled on 2 x 3kW Fronius inverters. Happy with the result and in particular the Fronius "solarweb" interface.

Fronius have published their API and I have managed to import data into Indigo for display on a control page - but a plug in is beyond my limited time availability - not to mention my even more limited coding skills :(

Having had this data visible has proved useful, as it identified an over-voltage issue on the grid, that was sending the inverters into power limiting mode and in extreme cases shutdown of export to the grid. This is regularly (almost daily) limiting the energy exported to the grid and the financial benefits of the associated feed-in tariff. The supply authority has acknowledged the issue and is in the process of rectifying it.

In making the decision on "matters solar", I found this web site useful:
http://www.solarquotes.com.au

Although specific to the Australian market, it does provide some useful equipment comparisons and user reviews that may have more global application/value.

Good luck with your investigations!

mclass

Recommend Enphase?

PostPosted: Wed Oct 11, 2017 7:45 pm
by GlennNZ
Different Computers wrote:
I'm at the very beginning of investigating going solar.

Do users here still all recommend Enphase? Good experiences? How valuable (in a literal $$ sense) do you find the Indigo integration? Do you wish you had gone with something else?


Good luck with your researching. I have a 16KW system over three roof aspects. NWE.

I think the major starting point is how much kW and over what roof aspects?

Bigger the better in my mind - particularly to deal with battery charging down the track.

If you are using multiple roof aspects then a ‘per-panel’ solution is needed. Otherwise without a per-panel solution the output of all the panels is reduced to the output of the lowest producing panel.

My system is a microinverter array - Enphase. Which had the advantage of a micro-inverter behind each panel giving a per-panel solution. The other options are a panel device which can optimise each panel; such as TigoTS4 and solaredge power optimisers. They are more expensive but obviously worth the money if big array across a few aspects/or occasional shading on some panels.

If you are having 5kw system small array single roof aspect/no shading issues (even at times) then it is an easier choice.

See here: (agree with the website advice!)
https://www.solarquotes.com.au/inverters/micro/
&
https://www.solarquotes.com.au/blog/dis ... ope-shade/



Glenn

Re: Recommend Enphase?

PostPosted: Thu Dec 27, 2018 7:08 pm
by Bcirulis
mclass wrote:
I have recently installed a 6kW system, and after investigation settled on 2 x 3kW Fronius inverters. Happy with the result and in particular the Fronius "solarweb" interface.

Fronius have published their API and I have managed to import data into Indigo for display on a control page - but a plug in is beyond my limited time availability - not to mention my even more limited coding skills :(

Having had this data visible has proved useful, as it identified an over-voltage issue on the grid, that was sending the inverters into power limiting mode and in extreme cases shutdown of export to the grid. This is regularly (almost daily) limiting the energy exported to the grid and the financial benefits of the associated feed-in tariff. The supply authority has acknowledged the issue and is in the process of rectifying it.

In making the decision on "matters solar", I found this web site useful:
http://www.solarquotes.com.au

Although specific to the Australian market, it does provide some useful equipment comparisons and user reviews that may have more global application/value.

Good luck with your investigations!

mclass


Hi mclass, we have just installed a Fronius system too and are playing around with Indigo. Is there any chance you’d be willing to share your code (and any tips) on how you used the Fronius API? Thanks in advance!

Re: Recommend Enphase?

PostPosted: Thu Dec 27, 2018 8:02 pm
by mclass
Thanks for your enquiry!

Initially I had written some (very!) basic scripts to access the Fronius data and store in variables.

However, I subsequently discovered the excellent Ghost XML plug in, and am using that with great success as the Fronius responses are in JASON format

Depending what data you are seeking, depends on which Ghost XML device to create. I have two Fronius 3 kW inverters, together with a Fronius Meter that records the production of the two inverters, and sit consumption. To meet my needs, I have created four different Ghost XML devices in accordance with the plugin's documentation.

These devices are (where XXX.XXX.XXX.XXX is the IP address of your inverter):

Fronius System using the following URL in the Ghost XML device configuration window:
Code: Select all
http://XXX.XXX.XXX.XXX/solar_api/v1/GetInverterRealtimeData.cgi?Scope=System


Fronius Power Flow:
Code: Select all
http://XXX.XXX.XXX.XXX/solar_api/v1/GetPowerFlowRealtimeData.fcgi


Fronius Meter Data:
Code: Select all
http://XXX.XXX.XXX.XXX/solar_api/v1/GetMeterRealtimeData.cgi?Scope=System


I have attached an image of one of the Ghost XML config pages to provide further info.

Each of these devices have custom states that can be used on a control page. I am also using Matplotlib plugin to provide graphical representation of system performance. The attached example displays data that has been obtained from the custom states of the Ghost XML devices.

Our Fronius installation is in our beach house, with air con running and multiple operations of the clothes washer to support our extended family that's in residence for our summer holidays! The graph is a lot less crazy during "normal" occupations. :D

Hope this helps!

mclass

Re: Recommend Enphase?

PostPosted: Sat Feb 02, 2019 7:52 pm
by agame
I'm looking to install a solar system with battery backup at a remote site - integration with Indigo is an important consideration.

It seems like a year since discussion on this thread so wondering if any update to suitable inverter choices for Indigo compatibility? Enphase integration still working well?

Re: Recommend Enphase?

PostPosted: Sun Feb 03, 2019 4:04 am
by mclass
I have successfully integrated Enphase micro inverters (using the Enphase plug-in ) for a 3 kw system and Fronius Primo inverters (2x 3kw inverters) using the Fronius api and the Ghost XML plug-in. Neither system has batteries but the Fronius API does appear to include provision for battery reporting.

The charts in earlier posts in this thread were produced using the Matplotlib plug-in using data derived from the Enphase or Ghost XML devices.

The principal advantage of the Enphase approach is that allows tracking of the output of each individual PV panel.

But no experience with batteries, sorry

Mclass


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