Home
You are here: Home > SOLAR BATTERIES > Solar Battery kWh Sizes > 40 kWh Solar Battery

40 kWh Solar Battery

These solar batteries are rated to deliver 40 kilo-watt hours kWh per cycle. Check your power bills to find the actual kWh consumption for your home or business. Find the average per day and the peak daily kWh consumption. We have solar battery packs available that provide power storage from 1kWh to more than 100 kWh. Learn the price of 40kWh backup battery power storage for the lowest cost 40kWh batteries.


WANT A SOLAR PANEL SYSTEM AT THE LOWEST COST? Start Solar Design
Sort By:
Page of 1
Outback Power EnergyCell 2000RE 24V Outback Power EnergyCell 2200RE 24V Outback EnergyCell RE High Capacity AGM Battery and Rack System, 48V 4 6x2V 960Ah  20hr with interconnects 1100RE
42kWh 24V High Capacity AGM Battery System 2000RE-24
Usually Ships in 1 to 2 Weeks
Your Price: $16,150.00
44kWh 24V High Capacity AGM Battery System 2200RE-24
Usually Ships in 1 to 2 Weeks
Your Price: $16,650.00
46.08kWh 48V High Capacity AGM Battery System 1100RE
Usually Ships in 1 to 2 Weeks
Your Price: $20,350.00
44kWh 48V EnergyCell Nono Carbon AGM Battery System 1100NC 38.4kWh Battery Bank 7.2kW Inverter Outback SystemEdge SE 740RE
44kWh 48V EnergyCell Nono-Carbon AGM Battery System 1100NC
Usually Ships in 1 to 2 Weeks
Your Price: $24,367.79
38.4kWh Battery Bank 7.2kW Inverter Outback SystemEdge SE-740RE
Usually Ships in 2 to 4 Weeks
Your Price: $25,530.00
   
 

What is a Kilo-Watt Hour?

A kilo-watt hour is a measure of 1,000 watts during one hour. The abbreviation for kilo-watt hour is kWh. So 1,000 watts during one hour is 1 kWh. The power company measures energy in kWh in order to calculate your monthly bill.

How Many Kilo-Watt Hours Do You Need?

The average home uses 900 kWh per month, or 10,800 per year, according to the U.S. Energy Information Agency EIA. That means the average power required per day is 30 kWh. Now, when sizing a grid-tied solar battery system for daily usage, you will want a system that can deliver up to 30 kWh, or possibly more for peak usage days. However, if you also want the system to provide off-grid backup battery storage, then you will typically choose 3X to 5X the daily average, or 90 to 150 kWh. This should provide ample storage for complete system autonomy in case of an extended power outage of 3 to 5 days. Combine the battery storage with a PV solar panel system to ensure that you will have a renewable power source to keep the batteries charged.


LOWEST PRICE SOLAR PANELS
Get a FREE solar panel evaluation with the latest prices and rebates   Start Here