Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Sustainable Sidetra...
Solar Photovoltaic ...
Solar PV quotes - 4...
 
Notifications
Clear all

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!

Solar PV quotes - 4.9 kW system but 3.6 kW inverter?

 
Solar Photovoltaic (PV)
Last Post by atommyk 4 years ago
1 Posts
1 Users
0 Reactions
3,328 Views
RSS
 atommyk
(@atommyk)
Active Member Member
Joined: 5 years ago
Posts: 12
Topic starter 16/03/2022 11:24 am   [#360]

Hi everyone,

thought I'd ask the hivemind what you thought of the solar PV quote I've received from a company with decent reputation locally. For our east/SE facing roof, they've proposed 

  • 12 x 410W Hyundai panels
  • 3.6 kW Growatt hybrid inverter with 6.5 kWh battery

For £9.9k plus VAT. It's not the cheapest quote I had so far, but from what I gather the Growatt system is better than e.g. GivEnergy.

What I found surprising is that the inverter is smaller than the entire system, and my understanding would have been that the panels, on a sunny summer day, would be able to generate ~4.74 kW but the inverter would only make use of 3.6 kW at any time. Having spoken to the company about this, they argued that a larger inverter would come on later in lower light conditions - e.g. a 5kW inverter would not allow us to generate as much in winter, where it arguably mattered more to squeeze out any last bits of efficiency. An additional factor would be the DNO of course. In their opinion, the efficiency gains in lower light conditions would make up for the restriction in peak output.

Curious to hear everybody's thoughts, and if you had experience with Growatt systems then even better!



   
Quote
Topic Tags
PV solar quote
Forum Jump:
  Previous Topic
Next Topic  
Related Topics
Topic Tags:  PV (6) , solar (8) , quote (2) ,
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Click to access the login or register cheese
Protected By
Shield Security PRO