Goodwe have a very large range of inverters, some I really like, some I'm not so impressed with, so if you are currently deciding on a quote including a Goodwe inverter, then it's important to know which model you are being quoted.
I'll start with two models I don't think are really up to snuff in 2021.
The single phase DN-S model is their top seller and has been now for six years. It was a decent low-cost option a few years ago, but the extra $150 cost for one today, compared to a new Growatt X for example, simply isn't easy to justify. No consumption meter option, or at least, no Goodwe option, as they want you to buy an expensive third party made kit, is a negative.
There have been a few facelifts to the DN-S model over the years, which has been a cause of frustration when we've turned up to replace one under warranty only to find the back-plate that holds it to the wall is different and out comes the drill to start again.
The three phase L-DT model is as old as the DN-S but has stood up to the passage of time better than the single phase DN-S, mainly because their rivals haven't got anything much better in three phase as three phase is only 20% of the residential market. Goodwe released a new-look version, white, not red and with a smaller LCD, the SDT-G2, but under the hood, it's the same.
Would I recommend you spend, for example $1,650 for the 5kW Goodwe LD-T model or $1,770 for the face-lifted SDT-G2? No, not when for $300 more you can get something that's the very latest tech, battery and consumption meter capable. (Huawei M1). However if you are looking for a 5 year solution then why buy a battery capable inverter?
Now I can talk about some Goodwe inverters that are really very good indeed.
The single phase MS range (5, 6, 7, 8.5 and 10kW models) came out in 2020 and they have one unique feature. Three MPPTs. To those who haven't been keeping up on their solar tech terms, that means you can have a string of panels on your North roof, another on your West and a third on your East, and if you thought all inverters should be able to do that, you are probably right, but they don't.
The 5kW MS sells for $1,500 which may seem a bit exxy if you compare it to a 5kW Growatt, Solis, SolaX, Sofar etc that are all $400 cheaper but none of them have that useful 3 x MPPT feature. I see the main market for the MS being over on the East Coast of Australia where they are allowed to install more than 5kW on single phase. In WA 5kW is limit. The 10kW single phase Goodwe MS only cost about $400 more than the 5kW which makes it a very attractive proposition for a big, three roof orientation install in NSW or Victoria where 10kW on single phase is often allowed.
The Goodwe EH inverter is their new single phase 'solar & battery' inverter. All the Goodwe models mentioned above are 'solar only' models.
Goodwe have forged their reputation in Australia at least, with their battery capable inverters, a fact not lost on some of Australia's less honest solar sales reps who sell the basic models above as 'battery inverters'.
The 3.6, 5 and 6kW EH range supports BYD high voltage (400V) batteries. My preference is to install high voltage batteries over low voltage (48V) and that's why I prefer this model over their older ES and EM models.
Goodwe include back-up and a consumption meter in the EH model price which for the 5kW model is $2,250. To put that into perspective, a 5kW Huawei L1 that connects to Huawei's own battery is $600 less, but the Huawei smart meter is an extra $170, and the Huawei back-up option is $600, so in fact, if you want both, the EH is slightly cheaper.
Personally, I prefer it when the battery is made by the inverter manufacturer as it avoids buck-passing of problems, but BYD is a very good battery and Goodwe and BYD have been best buddies for a long time.
The 5, 6, 8 and 10kW ET models are Goodwe's three phase 'solar & battery' offerings which supports LG and BYD batteries (high voltage only) and just like the EH, the price includes the consumption meter and back-up, and again, once compared to rivals Huawei, the price difference is marginal when both these options on Huawei are added.
As Huawei stop at 6kW anyway, the ET has the run of it over that size and only face a challenge from the new Fronius GEN24Plus range who also go up to 10kW and also support BYD batteries.
I like the ET (and the single phase EH) a lot. Would I buy one myself? no, I bought a Huawei, but I live in an area with few grid failures and the real strength of Goodwe's inverters is their back-up capability. It's almost a UPS in that the time it takes to switch over when the grid goes down is milliseconds, where Fronius for example, takes between 40 and 90 seconds to switch-over.
Datasheets, brochures are all on the
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