Is a wind turbine worth it?

I always start with the math to check for basic sizing/balance... 4 kWatt AC inverter is not a small system... 2,000 Watt or less--medium.

Anyway, assuming you are full time off grid, 2 days of stored energy, 50% max (planned) discharge... Based on your battery bank:

• 360 AH * 48 volts * 0.85 AC inverter eff * 1/2 days storage * 0.50 max discharge = 3,672 WH per day

As a start, I would be suggesting something like a 1,200-1,500 AC inverter, 3,300 WH per day, to run a full size refrigerator, LED lighting, washing machine, solar friendly well pump, LED TV, Laptop computer, cell phone charging, etc... Pretty close to a "near normal" electric existence for off grid home (using propane, etc. for cooking, heating, hot water, etc.).

Next, charging the battery bank... 5% to 13%+ typical--5% for weekend/sunny weather, 10%+ suggested for full time off grid:

• 360 AH * 59 volts charging * 1/0.77 panel+controller deratings * 0.05 rate of charge = 1,379 Watt array minimum
• 360 AH * 59 volts charging * 1/0.77 panel+controller deratings * 0.10 rate of charge = 2,758 Watt array nominal
• 360 AH * 59 volts charging * 1/0.77 panel+controller deratings * 0.13 rate of charge = 3,586 Watt array "typical" cost effective maximum
  

And based on location (hours of sun per day, by season). Deming NM, fixed array, facing south, 32 degrees elevation (1kWatt array below). Looking at the first column is hours of sun per day (ignore the next two):
https://pvwatts.nrel.gov/pvwatts.php

Month	Solar Radiation ( kWh / m2 / day )	AC Energy ( kWh )	Value ( $ )
January	6.09	136	17
February	6.70	131	16
March	7.36	157	19
April	7.81	156	19
May	7.60	155	19
June	7.28	139	17
July	6.69	133	16
August	6.92	136	17
September	7.12	138	17
October	6.83	143	18
November	6.15	129	16
December	5.79	129	16
Annual	6.86	1,682	$ 207

Based on 3,672 WH per day, December 5.79 hours of sun per day:

• 3,672 WH per day * 1/0.52 off grid AC system eff * 1/5.79 hours of sun per day = 1,220 Watt array "December break even"

You have lots of sun year round--So, 5% to 10% charging array would be 1,379 to 2,758 Watt array minimum suggested... 

For a 360 AH @ 48 volt battery bank, roughly a 3,600 Watt max inverter suggested (call it 4 kWatt--close enough for solar)... However, depending on how you use your power (lots of power all day and/or all night long, then ~1,800 Watt AC inverter minimum is not bad to run the fridge and the rest of the loads. If you have a solar "unfriendly" well pump (240 VAC, 2 HP or so), then a near 4 kWatt inverter could be needed to start/run the pump motor.

A 4k Watt inverter would use the 3,672 WH daily harvest in less than 1 hour at "full power"... Unless you have a shop (or larger well pump) with large loads that run short periods of time, your conservation minded home is usually going to draw much less average power.

If you plan on getting utility power in a hand full of years and would be "happy" with just a backup genset for a few days/week or so of power failure (once a year or less)--The Hybrid solar system is a pretty expensive solution. A GT solar power system is just panels + GT inverter--No batteries, no charge controllers, no battery replacement every 5-7 or so years, etc.... GT systems are generally much cheaper to install and maintain (replace a bad panel or bad inverter every 5-10+ years) vs the cost of a full battery bank hybrid inverter system (something like 1/4 the cost for GT system of similar capacity).

Down side is see if your utilty even allows GT Inverter connection (some may give problems with Hybrid (Battery) inverter systems)... The utilities and state PUCs are becoming less enamored with GT power systems (and reducing the subsidies that GT inverter systems receive).

-Bill