Forums

Forums
Renewable Heating
Solar Thermal & Pow...
Which micro inverte...
 
Notifications
Clear all

Which micro inverter is more suitable? Balcony photovoltaic system

 
Solar Thermal & Power Diverters
Last Post by Mars 1 year ago
5 Posts
5 Users
1 Reactions
1,280 Views
RSS
 greenleaf
(@greenleaf)
Active Member Member
207 kWhs
Joined: 2 years ago
Posts: 4
Topic starter 02/08/2023 6:46 am  

Hi everyone, I have a question and would like to hear your thoughts. I'm looking for a micro-inverter to be used in a balcony photovoltaic system, the system size is about 800W.

I looked for products from some big name manufacturers, I think Enphase's IQ7A model and apsystems' DS3D model are good. But the DS3D of apsystems seems to be suitable for the power system of 1800W, which is much higher than the power of the photovoltaic system on the balcony I planned. Will this affect anything?

In addition, I recently got information that the brand of photovoltaic panels I purchased, Maysun Solar, recently launched a new balcony photovoltaic product, using hoymiles micro-inverters. It just so happened that I noticed the hoymiles brand during my search, and the PV panel model I plan to use for the PV system is roughly the same model as the one in the new product. So I also want to know about the hoymiles HMS-400-1A model micro inverter.

Has anyone used the same model inverter? Are there any caveats or suggestions?

What do you think?


   
Quote
 Prunus
(@prunus)
Estimable Member Member
166 kWhs
Joined: 4 years ago
Posts: 56
25/08/2023 6:29 pm  

There shouldn’t be a problem using an inverter rated higher than your panel output. Maybe there will be a small efficiency loss at the low end (grey day in winter kind of thing), I don’t know.

 However it is also possible to go smaller than your rated panel size. Panels are typically rated for 1kW/m2 of sunlight which is roughly the sunlight you get at the equator. If the panels are at a different latitude or tilted then you get less. So an 800W inverter would capture the peak output of the panels, but much of the time the output is going to be less. If it is, a smaller inverter would miss out on the last few watts of peak generation but might be sufficient say 95% of the time.

 

 If you do the calculations for your site (I recommend Global Solar Atlas) you may find the actual output is much less than 800W and a smaller inverter will suit.

This post was modified 2 years ago 2 times by Prunus

   
👍
1
ReplyQuote
 Lenabc
(@lenabc)
New Member Member
36 kWhs
Joined: 1 year ago
Posts: 1
23/01/2024 8:31 am  

Hi everyone, I am new to photovoltaic system installation, can you guys give me some advice.

Currently I plan to purchase a Maysun Solar 800W balcony photovoltaic system. By understanding the accessories information, I found that there is currently a lack of special input sockets matching the system and a professional two-way electricity meter.

Do you need to find professional installers to test and install these equipment? Are there any brand recommendations for related equipment?

Thank you everyone.


   
ReplyQuote
Transparent
 Transparent
(@transparent)
Illustrious Member Moderator
12942 kWhs
Veteran Expert
Joined: 3 years ago
Posts: 2276
23/01/2024 11:13 am  

@lenabc There's another topic about a balcony PV approach from a few months back.

@editor can we move the above comment across there so that the two respondents can communicate with each other more easily?

Save energy... recycle electrons!


   
ReplyQuote
Mars
 Mars
(@editor)
Illustrious Member Admin
26254 kWhs
Veteran
Joined: 4 years ago
Posts: 2979
23/01/2024 10:20 pm  

@lenabc as suggested by @transparent please see above.

Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Share:

Join Us!

Heat Pump Dramas?

Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.

✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)

👉 Book a one-to-one consultation now.

Latest Posts

x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
Shield Security →