Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Inverter Sizing
Just looking for advice on required inverter sizing vs hypothetical peak solar array output.
I've had a quote proposing 18 x Perlight Delta 425W Total Black Mono panels = 7.65 kWp (at STC) pared with a Huawei 6kW hybrid inverter. Roof is dead on south facing, 40 degree pitch.
Stated logic, as I understand it, is that a) inverters work more efficiently towards the top end of their power output b) unlikely to see > 6kW often (would be full array operating >78% stated max)
and I guess c) some degradation in array output is anticipated over its lifespan
Please can I ask for thoughts on whether this seems reasonable / is in line with accepted logic?
- 27 Forums
- 2,783 Topics
- 65.6 K Posts
- 2,438 Online
- 7,187 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
Samgsung Quint is an A2W heat pump that also does A2A i...
By Rob of York , 4 minutes ago
-
RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
I'd be surprised if it wasn't a noise consideration. Ne...
By Majordennisbloodnok , 1 hour ago
-
RE: Indevolt Batteries UK Support & Info Thread
I've got a podcast recording scheduled this week where ...
By Mars , 14 hours ago
-
RE: Renewable Heating Hub Homeowners' Q&A Podcast
I’m a little late posting this, but it’s genuinely one ...
By Mars , 14 hours ago
-
RE: How should the Boiler Upgrade Scheme be reformed?
Ah, that makes sense when a combi is in place. The boil...
By Batpred , 16 hours ago
-
RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
@bobflux Thanks, that gives me something to check the i...
By Paul1098 , 17 hours ago
-
RE: Tesla Powerwall (2) Calibration Cycles
For Powerwall calibration, avoid forcing repeated deep ...
By EnergyStorageTech , 1 day ago
-
Over the years, due to the non barrier PEX underfloor h...
By bobflux , 2 days ago
-
RE: Getting closer to a finished Haier system
All the 45° elbows required for getting the primaries i...
By Singlespeed , 2 days ago
-
RE: battery storage without solar
Indeed, current on the grid input = current used for ch...
By bobflux , 3 days ago
-
RE: Who's your electricity provider and what's your tariff?
@papahuhu @papahuhu A lot of tears and sweat went into ...
By Andris , 3 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
We have the same problem, 12 mature trees clip the morn...
By Papahuhu , 4 days ago
-
RE: Solis inverters S6-EH1P: pros and cons and battery options
I had a battery and inverter installed a while ago, my ...
By Batpred , 4 days ago
-
RE: Is This Initial Free Quote From Octopus Trusted Partner Reasonable?
@ltron2 The EPC on our house is A-92, however that i...
By Rob of York , 4 days ago
-
RE: Heat pump branding. Clever, contemporary… or a bit too much?
The layout is confusing - much better like this: We b...
By downfield , 5 days ago



