Goodwe Hybrid Inverters
 

 

Goodwe Inverters 

Goodwe inverters caught the attention of most solar companies in Australia
when German Photon magazine awarded them a AA rating in their strict testing,
and ranked them 2nd in the residential inverter classification and Top 5 in commercial.

Even the solar trolls on Whirlpool who relentlessly mock anything Chinese found it hard
to say anything bad about this brand.

The comprehensive range of products from Goodwe is frankly unrivalled.

1. DNS range = single phase 3kW to 6kW (non hybrid)

2. DT range = three phase 5kW to 20kW (non hybrid)

3. EM range = single phase 3kW - 5kW HYBRID

4. ES range = single phase 5kW HYBRID (with faster battery charge/discharge rate)

5. ET range = three phase 5kW to 10 HYBRID (due for release Nov/Dec 2018)

6. SBP range = Single and 3 phase 3.6kW to 5kW AC coupled battery charger

7. BP range = Single phase 2.5kW DC to DC coupled battery charger

 

Phew !!

 

Now let's explain what all of this means.(Click blue links for datasheets)

 

1. The DNS range, especially the 3kW and 5kW models, is the top seller of all the Goodwe products. It's a straight forward, well made, reliable inverter that currently has both a screen and in- built WIFI with detailed reporting to smartphone app and internet browser that not only includes current and historical data but also email reports and email fault alerts.

It also includes Goodwe support (based in Australia) for free who have the ability to login and update the inverter firmware or make remote changes to the settings (e.g. counter high grid voltages from Western Power that force ramping down of output). There is a new version coming out in 2019 which looks very flash, doesn't have an LCD screen any more, but the 5kW version includes the Tigo optimiser data logger. This means if you connect Tigo optimisers to your panels to combat some shade then you get panel level reporting of all those optimised panels built-in. SMA have the same thing (SMA own a piece of Tigo) so it was quite a surprise to see them letting a competitor do this, but it's great that they do.

 

It's not a hybrid so you can't connect batteries directly to it, but it's about $800 cheaper than equally non hybrid inverters like Fronius Primo and SMA Sunny Boy. For about $100 you can buy a warranty extension directly from Goodwe to take it to the same as Fronius and SMA (10 year parts and 5 year labour). Seems like a prudent idea even though we have only had one fault to date with any Goodwe inverters (an LCD screen failure).

 

2. The DT range is the same as the DNS except it's for three phase installs, it goes MUCH larger (up to 20kW) and it won't include the Tigo data logger next year. Really nice inverter, love the huge LCD screen and great WIFI and it's about $500 cheaper than Fronius Symo.

 

3. The EM range are hybrid inverters designed to work with low voltage batteries like BYD and LG Chem. The inverter has a UPS not EPS function in the event of grid failure, which means that the battery power is instantly available. If you have a UPS power supply on your PC then you know that if the power fails your PC doesn't crash. EPS is more normal on solar hybrid inverters and means that the emergency circuit gets power quite a few seconds later.

The price of the EM 5kW has come down considerably since Huawei launched their hybrid range in January 2018 and now sells for the same price as Huawei ($1,750). The EM can also be used off-grid.

 

4. The ES range is the same as the EM except for it provides double the charge/discharge rate on the batteries. (4.6kW with ES compared to 2.3kW with EM). You pay $900 more for this extra grunt. Like the EM, the ES can be used off-grid.

 

5. The ET range is the new product in the range. It's a three phase hybrid, this time working with high voltage batteries from BYD, LG Chem and Pylontech. 5kW, 8kW and 10 kW models with UPS. In fact , the ET may not end up being called the ET, but that was what we were told at All Energy Expo in Melbourne in October 2018. First stocks are arriving early November, but are all pre-sold, so new sales will be filled from December 2018 onwards.

If this product is as good as the others, and there is no reason to think it won't be seeing as Goodwe are experts in both 3 phase AND battery technology, then this is going to be a huge seller.

 

6. The SBP range is an AC coupled battery charger that works on both single and three phase and connects to BYD and LG Chem low voltage batteries. It doesn't care what inverter or panels you have which means its a perfect 'retro-fit' product to any existing installation.

Your solar installation does it's normal thing and sends power to your home on what ever phase there is use (load), and then it gets interesting. Normally, any solar power that is surplus to immeadiate requirements is sent to the grid via your meter where you get credited a 7 cents per kWh, but with the Goodwe SBP smart meter monitoring this, it intercepts any surplus and stores it in the battery for night time use. Like the other Goodwe hybrids, it also includes a UPS so that your get battery power if the mains fails. At a bit over $2,100, plus of course the batteries, it's a price competitive and very flexible alternative to other AC coupled products like Tesla Powerwall 2 and SMA Sunny Boy storage.

 

7. The smart little BP unit is another retro-fit option to existing solar installations that connects to low voltage batteries from BYD and LG Chem. It's not an inverter, so it doesn't ever convert DC to AC and vice versa, it's a DC to DC converter. It is installed in-between the cables coming down from your solar panels, and your existing inverter. It comes with a Goodwe smart meter that does the exact same job as the Goodwe smart meter in the SBP and hybrids above. If it detects that there is surplus solar to your immeadiate requirements, it stores that surplus in the battery, letting the rest from the panels flow through to the existing inverter to be converted to AC power to service the household demand (load). At night it keeps both itself and your existing inverter alive with a small amount of stored battery power, and then sends its stored battery power to the house (max 2.5kW power) to meet the load.

 

 

 

 

Warranty and support
If you want to extend the warranty from the standard 5 years parts and labour, for less than $100 on most of the range you can but an extra 5 years factory warranty.

Goodwe Australia support 0393240559 or michael.zhang@goodwe.com

Goodwe WIFI Setup Instructions



Datasheets

Note:

MPPT indicates how many roof orientations can be supported for panel installation
Single means one only, e.g. only on North, or only on East etc
Two MPPT means panels can be installed on for instance, North AND West

Goodwe product ranges (Australia)

Click the blue links to view the brochure/datasheet for each range.


NS range - All are single phase, single MPPT

GW1500-NS - 1.5kW AC output, 1.95kW max solar panel power
GW2000-NS - 2kW AC output, 2.6kW max solar panel power
GW2500-NS - 2.5kW AC output, 3.3kW max solar panel power

GW3000-NS - 3kW AC output, 3.9kW max solar panel power

DNS Range - All are single phase, Two MPPT

GW3000D-NS - 3kW AC output, 3.9kW max solar panel power

GW3600D-NS - 3.68kW AC output, 4.9kW max solar panel power

GW4200D-NS - 4.2kW AC output, 5.5kW max solar panel power

GW5000D-NS - 4.95kW AC output, 6.6kW max solar panel power

LDT Range - 3 phase, Two MPPT

GW4000L-DT - 4kW AC output, 5.33kW max solar panel power

GW5000L-DT - 5kW AC output, 6.66kW max solar panel power

GW6000L-DT - 6kW AC output, 8kW max solar panel power

GW10K-DT - 10kW AC output, 13.3kW max solar panel power

GW25K-DT - 25kW AC output, 33.3kW max solar panel power


Goodwe Hybrid inverters works with DC coupled batteries, single phase, two MPPT

GW5048D-ES - 5kW AC output, 6.6kW max solar panel power

GW5048D-EM - 5kW AC output, 6.6kW max solar panel power

(The EM is cheaper and newer but has a slightly lower battery charge discharge rate)

Goodwe retro fit DC coupled battery storage system

GW 2500-BP Connect up to 10Kwh of battery storage. See below for full description

 

If you already have solar and want batteries, you can retro fit the clever GW2500-BP interface and smart meter.

 

Goodwe WiFi

The level of data available on the free WiFi feature of Goodwe inverters is excellent. You can view the data on a web browser or via their SmartPhone App (EziViewer). Here are some screen shots of some of what you get. (You get a lot more information if you have batteries connected).

1. This is a chart of the power produced over the day by a 3kW system in Perth on a mostly sunny day in May (see how it drops off at 12.30pm when some clouds came over).

2. This is a chart of the the power produced by the same 3kW system for a few days since installation on May 3rd

3. The drop down list on the right shows some of the many options you can report on. Not just power produced, but voltages & current from the grid or solar panels, battery storage/use, panel temperatures and much more. The software can also easily be set up to send you reports automatically by email every day, week, month and also email you an alert if the inverter detects a problem.

Goodwe software upgrade for AC grid voltage
Western Power are notorious for delivering very high AC voltages. There is a software tool available here to lift the voltage maximum on the inverter to 270V (the maximum allowed).
If this is not done, then if the voltage spikes about the default limit (262V) then the inverter will protect itself by shutting down until lower voltages are detected.

Click this link to download the zip file. It contains 4 files, including a PDF of the pretty simple to follow instructions. Extract the zip file so that you have a folder containjng the Calibrate.exe file, Settings and English files as well as the instructions.