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
- 2,054 Topics
- 44.8 K Posts
- 22 Online
- 3,285 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
-
RE: Plate heat exchanger considerations
Work on 2-3 percent per degree. This is a reasonable e...
By JamesPa , 4 hours ago
-
RE: Advice for ground source heat pump in new build with PV and batteries
The useful bit is the bit that specifies the heat loss ...
By JamesPa , 4 hours ago
-
RE: Yes, the "zoning with ASHP" topic again...
@harryrea In a heat pump only system you are never heat...
By JamesPa , 4 hours ago
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
You’re absolutely right that during defrost the refrige...
By Mars , 6 hours ago
-
@editor thanks Mars that’s the same table I found in th...
By Gary , 11 hours ago
-
RE: Tariff and charging strategy advice please
They haven't asked me to prove that I have an EV (I do)...
By JamesPa , 14 hours ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Took a while to find on the OFGEN site: ”The FIT sche...
By AgentGeorge , 19 hours ago
-
RE: why solar diverters for HW instead of the heat pump?
For me there are few factors why you may want to heat w...
By Johnmo , 20 hours ago
-
RE: Hydronic plinth heaters and ASHPs
@editor yes I think so. It will be a while until I get ...
By benson , 21 hours ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
I’m an Aira customer with a 6kW Outdoor Unit in a small...
By KevinPotts , 1 day ago
-
RE: Is your heat pump insured?
@richard24738 good to hear. I’ll also review them this ...
By Mars , 1 day ago
-
RE: Warm weather and heat pumps.
Just looked at my WC setting, it is programmed for 25 D...
By Johnmo , 1 day ago
-
RE: How to disable radiator heating in LG HM161MR
Just to add to above,when adjusting WC heat pump should...
By JamesPa , 2 days ago
-
@johnmo yes I can believe that. It seems to be human na...
By SUNandAIR , 2 days ago
-
RE: Help optimising my system!
I would be doing things a little more simply. Your heat...
By Johnmo , 2 days ago
-
RE: Renewables & Heat Pumps in the News
If you want to read a huge amount of speculation, fabri...
By Judith , 2 days ago
-
IVT Greenline high pressure switch and electrical cassette errors
I have an IVT Greenline HT Plus C heat pump that is con...
By tdudgeon , 2 days ago
-
RE: Additional Battery v Wind Turbine v Ripple
There was a call today for Ripple investors and amongst...
By Judith , 4 days ago
-