Type of pump for deep well

[malejandro]

i am trying to determine what type of pump i need to get for a well that is roughly 160ft deep. this well would be completely offgrid. Im looking at solar and i would like to try to to keep my cost to a minium.

I guess the choices i have are AC or DC type pump.
GPM would not be to big of an issue, as i would be pumping to a storage tank roughly 500 gallons....

...any advice would be appreciated, Ive looked at shurflo 9300, Grundos (expensive)...etc.

[Mike90250]

Well. In my case, I was going to be needing 240VAC anyway, so I went with a conventional pump, and am pumping to storage tanks 160' above my pond. Gives me 65psi at the house.
To duplicate only the pumping, I would install 1KW of PV, MPPT charge controller, 400ah battery bank, 240VAC pump and the xw6048 inverter

Starting from scratch, some of the solar options are 600W (3, 200w panels) PV, Grundfos DC pump, Grundfos MPPT pump controller, float switch

There's some ideas to start with.

[malejandro]

wow...ok, well let me through this in to see how it will fit into the equation. In addition to the well, i am also going to be setting up an offgrid cabin. the system i am looking at from sunelec is the 2100 watt system.

My initial thoughts were to seperate the two systems, one for the well another for the cabin. Would it be wiser to just do one system and integrate the well?

[Mike90250]

wow...ok, well let me through this in to see how it will fit into the equation. In addition to the well, i am also going to be setting up an offgrid cabin. the system i am looking at from sunelec is the 2100 watt system.

My initial thoughts were to seperate the two systems, one for the well another for the cabin. Would it be wiser to just do one system and integrate the well?

Price it out all 3 ways. I strongly suggest a single 48V system with pure sine 240VAC inverter. I had to run #6 cable 300' to my pump shed, and another 100' into the pond, so include the lengths of wire for your pump system. Also check out arizona wind sun for parts/prices too.

[malejandro]

i think going with a 48v system is going to be a little to rich for my blood.....im gonna have to stick wtih 24v.

[Mike90250]

The disadvantages to a 24 v system, are:

you still need the same capacity of battery bank, but must now use parallel batteries, which becomes problematic.

You may need 2 charge controllers, for the same PV wattage, because as the volts go lower, the amps go up, and controllers are rated in output amps.

larger wire gauges to carry the extra current

24V sine inverters are only a little less than the 48V versions
xw4028 sine inverter 240VAC
or here's a little smaller one http://www.solar-electric.com/maenms4040wa1.html

[Sunking]

Go with 48 volt, it is less expensive in up front cost. The extra copper and charge controller cost will offset the higher inverter price, not too mention 400% more efficient than 24 volts.