Do grid tie inverter have "NO LOAD CONSUMPTION"

non-EV Solar, Wind and other renewable power sources
non-EV batteries and other energy storage stuff
Forum rules
Important!
This forum is for discussion of Non-EV matters.
Post Reply
hary
Groupie
Posts: 40
Joined: Sun, 07 Apr 2019, 03:40

Do grid tie inverter have "NO LOAD CONSUMPTION"

Post by hary » Fri, 12 Apr 2019, 00:37

My question might be a little stupid, but learning about inverters, I discovered that off grid inverter would have a quite high "NO LOAD CONSUMPTION".

Some have 25W, 50W when on standby mode, and some up to 192W (PV3000-MPK from MUST-SOLAR°
So I wonder if grid tie inverter would have such kind of consumption when not producing at night ?

antiscab
Senior Member
Posts: 2486
Joined: Mon, 26 Nov 2007, 05:39
Real Name: Matthew Lacey
Location: Perth, WA

Re: Do grid tie inverter have "NO LOAD CONSUMPTION"

Post by antiscab » Fri, 12 Apr 2019, 09:54

Designs that are entirely solar powered are never at no load when it matters. Ie, the only time they are at no load is when the sun is out and the grid is offline.

Designs that are partially mains powered (Solax comes to mind) for their display, Wi-Fi and control hardware do use power at no load. Ie at night and the grid is up
Matt
2017 Renault zoe - 25'000km
2007 vectrix - 156'000km
1998 prius - needs Batt
1999 Prius - needs batt
2000 prius - has 200 x headway 38120 cells

antiscab
Senior Member
Posts: 2486
Joined: Mon, 26 Nov 2007, 05:39
Real Name: Matthew Lacey
Location: Perth, WA

Re: Do grid tie inverter have "NO LOAD CONSUMPTION"

Post by antiscab » Fri, 12 Apr 2019, 10:04

Solax no load is 3.5w for their single phase grid tie only units.

I imagine it would be similar for their non isolated battery units, where the battery design voltage is above 300v.
Matt
2017 Renault zoe - 25'000km
2007 vectrix - 156'000km
1998 prius - needs Batt
1999 Prius - needs batt
2000 prius - has 200 x headway 38120 cells

Honu
Noobie
Posts: 3
Joined: Mon, 25 Mar 2019, 19:19

Re: Do grid tie inverter have "NO LOAD CONSUMPTION"

Post by Honu » Thu, 25 Apr 2019, 18:24

hary wrote:
Fri, 12 Apr 2019, 00:37
My question might be a little stupid, but learning about inverters, I discovered that off grid inverter would have a quite high "NO LOAD CONSUMPTION".

Some have 25W, 50W when on standby mode, and some up to 192W (PV3000-MPK from MUST-SOLAR°
So I wonder if grid tie inverter would have such kind of consumption when not producing at night ?
Hi,
Got to add some details here, a victron will draw like 5W in sleep mode, it send some beat of sinusoid (evry sec or every 5s, do not remember) and wake up if the demand go over a threshold (let's say 50W, configurable).

Post Reply