Spend my money!!!

Sort of, I currently have solar on my RV but my friends are always asking for advice on their future setup.
And to be honest I still don't know what the "best bang for the buck" would be.
So let's budget for $2500 and roof space is not an issue.
It would be to power (hopefully) a mini split air conditioner as well as other smaller 120v appliances.
Battery weight limit at around 400 lbs
Totally off grid with NO gen back-up
Wire is free
AGM's are preferred
What do you think?


  • CariboocootCariboocoot Banned Posts: 17,615 ✭✭✭
    Re: Spend my money!!!

    I think $2500 is not a lot of money for solar, especially in Canada.

    I also think that trying to design generic systems is a waste of time as everyone's situation, including usage and economic priorities, is different.

    Then there is the inevitable fact that today's deals are gone tomorrow.
  • 8lander8lander Registered Users Posts: 18
    Re: Spend my money!!!

    Ya the $2500 was in USD (so pushing $3500 by the time it gets here)
    It'd just be used during the summer months for camping...
  • BB.BB. Super Moderators, Administrators Posts: 33,327 admin
    Re: Spend my money!!!

    As Marc/Cariboocoot says--Generic designing here often causes more confusion than clarifiation.

    You have to choose a starting point. How much loads (ideal)--As this is what you really want--A system that can power your loads--Not just some of them, or worst yet, wasted $$$ on over sized system.

    Or, you can pick a limitations--The maximium size battery bank (space/weight, AGM vs Flooded Cell, or even LiFePO4 for RV applications). Or roof space for solar array, etc... Then do a "rule of thumbs" design to fit that limitation.

    Or, pick a "class" of system you would like:

    500 WH per day (approx 40 AH @ 12 volts) to run lights, a small laptop, charge cell phone
    1,000 WH per day to run above + water pump, more laptop/TV/small fan.
    3,300 WH per day, more of the above plus a full size Energy Star type Refrigerator
    10,000 WH per day, a full size city home with centeral heat, natural gas/propane for heating/hot water cooking/etc...

    Got to start somewhere. The actual hardware and system choices to build each of the above systems is "different" and handwaving discussions about those differences when designing a generic system get real confusing real fast.

    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • westbranchwestbranch Solar Expert Posts: 5,183 ✭✭✭✭
    Re: Spend my money!!!

    that amount of money would pull together a nice system that will NOT run the AC but most likely the rest of an average RV sans A/C or microwave...
    KID #51B  4s 140W to 24V 900Ah C&D AGM
    CL#29032 FW 2126/ 2073/ 2133 175A E-Panel WBjr, 3 x 4s 140W to 24V 900Ah C&D AGM 
    Cotek ST1500W 24V Inverter,OmniCharge 3024,
    2 x Cisco WRT54GL i/c DD-WRT Rtr & Bridge,
    Eu3/2/1000i Gens, 1680W & E-Panel/WBjr to come, CL #647 asleep
    West Chilcotin, BC, Canada
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