Which micro inverter is more suitable? Balcony photovoltaic system
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?
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.
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.
@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!
@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
- 22 Forums
- 2,061 Topics
- 45.1 K Posts
- 28 Online
- 3,325 Members
Join Us!
Trusted Installers
Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.
✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available
Latest Posts
-
By the way, I also think our industry need to get on bo...
By ASHP-BOBBA , 1 hour ago
-
RE: Say hello and introduce yourself
Good questions. Dr Modesta’s gas kWh/HDD formula is...
By Mars , 1 hour ago
-
RE: Planning Update: 1 Metre Boundary Rule for Heat Pumps Has Been Scrapped
Finally happen then 🙂 I was waiting for this for a lon...
By ASHP-BOBBA , 2 hours ago
-
RE: Vaillant & OVO partner up to offer Heat Pump Plus
@westkent sorry to hear that you were mis-advised, but ...
By Judith , 9 hours ago
-
RE: Ripped Off: How UK Homeowners Are Paying Gas Prices for Wind Energy
That's a curious conclusion with which I am struggling,...
By JamesPa , 16 hours ago
-
RE: Rate the quality of your heat pump design and installation
Cool sounds good
By Johnmo , 18 hours ago
-
RE: Grant Aerona3 - Home Assistant control via Modbus
That's interesting, @grantmethestrength. I'm a little s...
By Majordennisbloodnok , 1 day ago
-
@allyfish That's impressive. We are on a similar journe...
By ChandyKris , 1 day ago
-
RE: Enabling WiFi: Samsung ASHP on Smart Things App
Hi, good to hear. To be honest, I've given up with the ...
By Profzarkov , 1 day ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
I feel like a record is on it's way this month. Scotlan...
By Andris , 2 days ago
-
RE: Discharging battery to grid whilst charging EV
@majordennisbloodnok Well, I tried it and nothing burne...
By AndrewJ , 2 days ago
-
RE: Using AI to optimise your system
@marvinator80 Two of the best resources on Youtube that...
By Grantmethestrength , 2 days ago
-
RE: Renewables & Heat Pumps in the News
@johnmo Ours is powered from solar energy (with grid ba...
By Toodles , 3 days ago
-
RE: Heat Pump Manufacturers Recommending Buffer Tanks
I'm curious who you think are the reluctant ears. Cert...
By JamesPa , 4 days ago
-
RE: Commencing on an ASHP Installation Process
If that is the case then I would add to my earlier post...
By JamesPa , 4 days ago
-
RE: Battery sizing - How low can you go!
The second 6.5 kWh Growatt battery was installed today....
By ChandyKris , 5 days ago
-
RE: IVT Greenline high pressure switch and electrical cassette errors
Your system seems to be more modern than mine, mine was...
By abbote , 5 days ago
-
RE: Advice for ground source heat pump in new build with PV and batteries
Braver person than me. No way I would go down that rout...
By Johnmo , 6 days ago
-
RE: Getting the best out of a heat pump - is Homely a possible answer?
@arundalep yes I have no issue with this. The observati...
By benson , 6 days ago
-