Solar Inverter for $5,200


  #1  
Old 04-16-24, 01:06 PM
O
Member
Thread Starter
Join Date: Nov 2014
Location: USA
Posts: 290
Received 3 Upvotes on 3 Posts
Solar Inverter for $5,200

A solar company quoted me a "[EG4-18KPV-12LV] EG4 18KPV Hybrid All In One Inverter 48V 120/240V" for $5,200. Is that a normal rate for what I'll need? I'm considering going into a used system so was wondering if the price drop would be significant if I can get either a used model or something similar. The inverter is costing more than the panels.
 
  #2  
Old 04-16-24, 01:10 PM
O
Member
Thread Starter
Join Date: Nov 2014
Location: USA
Posts: 290
Received 3 Upvotes on 3 Posts
Here's the whole quote BTW:

 
  #3  
Old 04-16-24, 04:38 PM
B
Member
Join Date: Oct 2015
Location: Ct.,USA
Posts: 3,281
Received 306 Upvotes on 271 Posts
Have you checked with poco for compatibility?
 
  #4  
Old 04-16-24, 10:12 PM
d_s_k's Avatar
Member
Join Date: Mar 2007
Location: Norway
Posts: 413
Received 22 Upvotes on 20 Posts
Do you need to use 18 000 Watts at one time? Could units with Electric heating elements be replaced by non electric equipment? You need an extremely large bank of batteries to use that for just an hour.
 
  #5  
Old 04-18-24, 11:42 AM
O
Member
Thread Starter
Join Date: Nov 2014
Location: USA
Posts: 290
Received 3 Upvotes on 3 Posts
@Beelzebob I will bring this to building safety to get their opinions as well, just haven't had the chance yet.

@d_s_k No, but my yearly consumption for electrical usage is around 14,000 kWh (Feb 2023 - Jan 2024). I wouldn't want to change my equipment at this point; for example, my water heater runs on gas, and my kitchen cooktop the same. Maybe somewhere down the line, but I think it's more probable we'll get a second electric car / plug-in hybrid. What specs do you recommend I purchase instead?

 
  #6  
Old 04-18-24, 02:12 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,401
Received 4,046 Upvotes on 3,630 Posts
Are you completely off the grid ?
If yes.... you should not be using any resistive type heating. That is extremely ineffective.

Not sure how the poco is involved here if you are off the grid.
If you are on the grid.... why would you need an inverter ?
You would be sending back into the grid..... not a storage bank.
You would need a grid tie inverter.
 
  #7  
Old 04-19-24, 09:25 AM
O
Member
Thread Starter
Join Date: Nov 2014
Location: USA
Posts: 290
Received 3 Upvotes on 3 Posts
PJmax Can you recommend one then?

I'm not going off grid. Is that what they recommended? Weird.
 
  #8  
Old 04-19-24, 02:35 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,401
Received 4,046 Upvotes on 3,630 Posts
On the grid means you send all solar generated power to the poco thru a grid tied inverter.
You get full credit for all generated power. Nothing is saved locally.

Off the grid means you have a battery bank.
Your solar panels charge the batteries and there is no connection to the power company.

When off the grid.... the inverter is carefully sized to your load requirements and battery bank capability.
 
  #9  
Old 04-21-24, 11:10 AM
O
Member
Thread Starter
Join Date: Nov 2014
Location: USA
Posts: 290
Received 3 Upvotes on 3 Posts
@PJMax I'll go off grid I think. Can I switch later on or no?
 
  #10  
Old 04-21-24, 07:47 PM
A
Member
Join Date: Aug 2015
Location: USA
Posts: 1,096
Upvotes: 0
Received 124 Upvotes on 107 Posts
would probably check with your local power company and get some solar companies to look at what you need looks like they listed 2 inverters , grow watt makes some less expensive inverters and then there's the batteries the most expensive portion of doing off grid would be battery storage you might also price new panels places like ecodirect has some inexpensive panels not sure how much shipping would be though.
your annual usage may not really be a good way to decide on inverter size ultimately its how much energy you need at peak times for your most demanding loads like a/c and heat and appliances like dryer.
 
  #11  
Old 04-21-24, 10:27 PM
d_s_k's Avatar
Member
Join Date: Mar 2007
Location: Norway
Posts: 413
Received 22 Upvotes on 20 Posts
The choice of wattage on the inverter and batteries depends on several factors.
The local deal for selling power when you produce more than you need.
If you want to cower everything for a long period without power-supply from the grid.
If it will be a good solution to have your own power for the most, and let the grid take care of the power peeks.
If you loose the power from the grid, are you willing to cut down your power-consumption? (E.g. only cooling in the bedroom?) prioritizing refrigerator and freezer...??
You have to remember that all such investments has a limited time of life, so may you need new unit and batteries within 10 years.
I really believe that investing in such equipment is a good idea, but it is difficult to get the optimal solution in hence of both economics, and environment whatever you focus on.
 
  #12  
Old 04-22-24, 02:11 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,401
Received 4,046 Upvotes on 3,630 Posts
When you go off grid. The power company is out of the picture.

You have two inverters on the quote. That is incorrect.
The first inverter is a hybrid. It can be grid tied and charge batteries all at the same time,
There are no batteries shown on the quote.
The second inverter is a grid tied inverter only.

Your current quote is for grid tie use on installation.
In that case you would choose the second inverter.

If you are considering a battery backup bank then you would use the first inverter.
Batteries are very expensive plus require maintenance.
A battery bank is worth considering if you have a lot of power outages and want backup power without using a generator.

I'll be glad to work with you for what's best to get.
Why do you want solar ?
Hybrid inverter information
 
orielonline voted this post useful.
  #13  
Old 04-26-24, 11:16 AM
O
Member
Thread Starter
Join Date: Nov 2014
Location: USA
Posts: 290
Received 3 Upvotes on 3 Posts
PJmax I think an on-grid system would be best.

If I remove the hybrid AIO Inverter then the quote comes down to around $6k. That's actually a really attractive deal. So, let me kno wwhat you think. But what about all the other gear needed, like roof mounts / critter guards?
 
  #14  
Old 04-29-24, 10:03 AM
O
Member
Thread Starter
Join Date: Nov 2014
Location: USA
Posts: 290
Received 3 Upvotes on 3 Posts
So here's the latest quote. Is it legit?
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: