Hoymiles HMS-2000-4T-NA [240]

[ncsolarelectric]

I have been monitoring the new HMS-2000-4T-NA inverters on one of my customer's sites. They are connected to Z-shine 455W Bifacial solar panels, on a Sinclair racking system. I have recorded output from the solar panel up to 512W DC, and output from the Inverters at over 1936W AC. Simply amazing! So I had to try it for myself.
UPDATE TBD

 

[ncsolarelectric]

Wow! 423W DC from a 405W solar panel, and 799.7W AC from the pair on my HMS-2000-4T-NA.

AWESOME!

 

[Danke]

So 94.5% efficient?

 

[ncsolarelectric]

So 94.5% efficient?

This is only the first data point. The CEC-rated efficiency is 96.5% at 480W. However, the efficiency of one solar panel is 104%, which surprised me the most. It shows, solar panels can be pushed above their STC rating with the right inverter.

 

[ChrisFullPower]

What kind of monitoring do these inverters have?

 

[cs1234]

You got the bucket full of rocks mounts. How are you liking them? Which ones did you get?

 

[Nobodybusiness]

I have been monitoring the new HMS-2000-4T-NA inverters on one of my customer's sites. They are connected to Z-shine 455W Bifacial solar panels, on a Sinclair racking system. I have recorded output from the solar panel up to 512W DC, and output from the Inverters at over 1936W AC. Simply amazing! So I had to try it for myself.
UPDATE TBD

View attachment 136356View attachment 136355

I see you set up some more panels.

Looks good!!

 

[ncsolarelectric]

What kind of monitoring do these inverters have?

They communicate with the DTU-Pro-S via a Sub-1G network. The DTU communicates with the cloud over Wifi or Ethernet. There is also a Celluar DTU option. The monitoring platform is on the Hoymiles app, and also on the S-Miles Cloud, online. It's not bad. I use it in conjunction with a WattNode WND meter to monitor consumption and control export. The meter is a pricey add-on but still much cheaper than Enphase.

 

[ncsolarelectric]

You got the bucket full of rocks mounts. How are you liking them? Which ones did you get?

These are Powerfield PowerRacks. I'm actually relocating my panels to the sunny side of the yard and upgrading from a 10-deg tilt Unirac ballasted system, to the 25-deg tilt PowerRacks. The difference is enormous, 10-deg sucks! I'm also having fun with it, and experimenting as usual.

 

[ChrisFullPower]

They communicate with the DTU-Pro-S via a Sub-1G network. The DTU communicates with the cloud over Wifi or Ethernet. There is also a Celluar DTU option. The monitoring platform is on the Hoymiles app, and also on the S-Miles Cloud, online. It's not bad. I use it in conjunction with a WattNode WND meter to monitor consumption and control export. The meter is a pricey add-on but still much cheaper than Enphase.

Thanks for the reply. Was really hoping for a local, non-cloud dependent monitoring option. Enphase used to provide a local API but nixed it recently which has me looking for other microinverters.

 

[ncsolarelectric]

Wow! 423W DC from a 405W solar panel, and 799.7W AC from the pair on my HMS-2000-4T-NA.

AWESOME!

View attachment 136534View attachment 136535

I'm replacing 10 x IQ8+, with 3 x HMS-2000-4T-NA, and adding only 2 more panels. This will boost my AC power production from my original Enphase 2.99kW, all the way up to 4.8kW! I'm excited, can you tell?

 

[ncsolarelectric]

Thanks for the reply. Was really hoping for a local, non-cloud dependent monitoring option. Enphase used to provide a local API but nixed it recently which has me looking for other microinverters.

They do offer an API but it's a paid service that uses the S-Miles cloud, and as I understand it you get your own server to play with.
Locally, the best you can do is Sense Solar to monitor home production and consumption. It works great and for $400 it's worth it.

The Hoymiles inverter does not require a DTU to operate. It doesn't need the cloud in the way Enphase needs the cloud, but without a DTU you can't change the grid profile. It comes from the factory set for CA Rule 21. In NC, I have to change it to IEEE 1547. An installer could set it with his own DTU, then remove it.

 

[cs1234]

These are Powerfield PowerRacks. I'm actually relocating my panels to the sunny side of the yard and upgrading from a 10-deg tilt Unirac ballasted system, to the 25-deg tilt PowerRacks. The difference is enormous, 10-deg sucks! I'm also having fun with it, and experimenting as usual.

Those are the ones I was posting about all the time a while back. Where did you get them and how much for if you don't mind saying?

 

[ChrisFullPower]

They do offer an API but it's a paid service that uses the S-Miles cloud, and as I understand it you get your own server to play with.
Locally, the best you can do is Sense Solar to monitor home production and consumption. It works great and for $400 it's worth it.

The Hoymiles inverter does not require a DTU to operate. It doesn't need the cloud in the way Enphase needs the cloud, but without a DTU you can't change the grid profile. It comes from the factory set for CA Rule 21. In NC, I have to change it to IEEE 1547. An installer could set it with his own DTU, then remove it.

I ended up doing some research and turns out the DTU Pro has modbus capabilities - both RS485/RTU and TCP! Someone even wrote a MQTT translator for it too!!

GitHub - wasilukm/hoymiles-mqtt: Send data from Hoymiles PV plant to Home Assistant without cloud

Send data from Hoymiles PV plant to Home Assistant without cloud - wasilukm/hoymiles-mqtt

github.com

 

[zanydroid]

I ended up doing some research and turns out the DTU Pro has modbus capabilities - both RS485/RTU and TCP! Someone even wrote a MQTT translator for it too!!

GitHub - wasilukm/hoymiles-mqtt: Send data from Hoymiles PV plant to Home Assistant without cloud

Send data from Hoymiles PV plant to Home Assistant without cloud - wasilukm/hoymiles-mqtt

github.com

The modbus registers are fairly well documented by Hoymiles. You can also use the DTU to send commands down, like curtailing the output, which I think will be useful if I try AC coupling to HM microinverters.

 

[Danke]

I'm replacing 10 x IQ8+, with 3 x HMS-2000-4T-NA, and adding only 2 more panels. This will boost my AC power production from my original Enphase 2.99kW, all the way up to 4.8kW! I'm excited, can you tell?

Specs say 4 x 16A, what gauge wire is required?

 

[ncsolarelectric]

20A rated or higher. I use #10 awg PV wire, same as always.

 

[Danke]

20A rated or higher. I use #10 awg PV wire, same as always.

Sorry if you already answered this before, but you replaced your Enphase Q8s. Can the Hoymiles also independently work with the grid down?

 

[ncsolarelectric]

Sorry if you already answered this before, but you replaced your Enphase Q8s. Can the Hoymiles also independently work with the grid down?

They can operate in parallel with my IQ Battery 3T. Both are UL1741SB compliant so they can control the microgrid to be stable, well enough for my needs so far. No, they can't operate independently off-grid. Neither can IQ8s. They require a System Controller 2, (2) Load Controllers, the Envoy, and a Cellular Modem to operate off-grid.

The Cyboinveter can run off-grid, but I haven't tested one yet.

 

[ncsolarelectric]

I passed my final permit inspection today! The inspector showed up a day early, I still have 4 panels to wire up. He was cool with it. I'm slacking!



These are 400W and 405W solar panels on a 20C day. There is 900W AC being produced from 2 panels, and over 1.7kW from 4 panels, using the HMS-2000-4T-NA 4-in-1 microinverters.

 

[rmacgurn]

They do offer an API but it's a paid service that uses the S-Miles cloud, and as I understand it you get your own server to play with.
Locally, the best you can do is Sense Solar to monitor home production and consumption. It works great and for $400 it's worth it.

The Hoymiles inverter does not require a DTU to operate. It doesn't need the cloud in the way Enphase needs the cloud, but without a DTU you can't change the grid profile. It comes from the factory set for CA Rule 21. In NC, I have to change it to IEEE 1547. An installer could set it with his own DTU, then remove it.

does Hoymiles now offer any box to allow battery backup and self consumption modes with only residual export of unused energy (or can you cap your export in the DTU?)

thanks trying to decide between this system and Enphase for 30 520 watt CS panel system.

 

[Nobodybusiness]

does Hoymiles now offer any box to allow battery backup and self consumption modes with only residual export of unused energy (or can you cap your export in the DTU?)

thanks trying to decide between this system and Enphase for 30 520 watt CS panel system.

@ncsolarelectric

 

[JoeHam]

Those are the ones I was posting about all the time a while back. Where did you get them and how much for if you don't mind saying?

Wondering the same thing ?

 

[zanydroid]

I have about 15kW-AC of HM microinverters on my roof

DTU has zero export/export limit mode with a Carlo whositthat, energy meter for feed in limit compliance. I expect that is fairly widely deployed overseas but I don’t know that for certain.

I haven’t looked at the hybrid inverters/storage from Hoymiles yet.

I was planning on looking in 1-2 years at whatever hoymiles have at that point, plus whatever the cool kids in 2025 use for AC coupled hybrid inverter.

 

[agarg]

It comes from the factory set for CA Rule 21. In NC, I have to change it to IEEE 1547. An installer could set it with his own DTU, then remove it.

That is innovative.