Batteries and Solar Panels required to accomodate daily avg. need for 11 KWH

[Silver_Is_Money]

In the dreaming and planning stage presently. For a 48 volt system, would 24 x 2V 1,100 AH batteries and 18 x 250 Watt solar panels be sufficient for an area which averages about 4.1 hours of sunshine daily and for a home which consumes roughly 11 KWH per day on average? Would this all pretty well balance out, or is something way off base here?

[Sunking]

Forget average daily sun hours for off grid. You use worse case in winter like December/January Sun Hours.

As for battery they can provide about 11 Kwh/day so you got that right. With 4500 watts of panels if your minimum Sun Hours in winter are 3.5 hours or longer should produce at least 11 Kwh per day with clear skies. If less than 3.5 hours will need larger panels or more fuel for the generator.

[Silver_Is_Money]

Forget average daily sun hours for off grid. You use worse case in winter like December/January Sun Hours.

As for battery they can provide about 11 Kwh/day so you got that right. With 4500 watts of panels if your minimum Sun Hours in winter are 3.5 hours or longer should produce at least 11 Kwh per day with clear skies. If less than 3.5 hours will need larger panels or more fuel for the generator.

My locations solar insolation for November is 2.5, December is 2.0, January is 2.5, and February is 3.4. All other months are at 4.0 to 5.5. These figures are for panels fixed at latitude angle. How much would I be relying upon a generator in the months that fall below an average of 3.5? What size of generator would I need?

[paulcheung]

You need at least 28 panels and a 6000 watts generator to charge those batteries properly.

[Sunking]

Regardless any off grid system is required to have a generator. The size of that generator to minimize fuel burn and minimize run time should be able to supply the batteries a C/8 charge current. C/8 for 1100 AH = 1100 AH / 8 Hours = 137.5 amps. It would take a 10 Kwh generator to do that. !37 amps is an odd number and 48 volt 100 amp rectifiers are common and would require a 7 Kw genny to power it.

[Silver_Is_Money]

Regardless any off grid system is required to have a generator. The size of that generator to minimize fuel burn and minimize run time should be able to supply the batteries a C/8 charge current. C/8 for 1100 AH = 1100 AH / 8 Hours = 137.5 amps. It would take a 10 Kwh generator to do that. !37 amps is an odd number and 48 volt 100 amp rectifiers are common and would require a 7 Kw genny to power it.

Would a hybrid inverter such as the Outback Radian GS 8048 or the Schneider Conext XW 6048 contain such a rectifier as a standard built in feature (or perhaps as an add-on)?

[Sunking]

Would a hybrid inverter such as the Outback Radian GS 8048 or the Schneider Conext XW 6048 contain such a rectifier as a standard built in feature (or perhaps as an add-on)?

YES,

It has built-in AC charger which is the same thing basically. The charger uses either commercial AC power or generator if AC is unavailable and generator is available.