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Back-up Power for Emergency and Essential Loads

Battery Back-up Power for Emergency and Essential Loads

A well designed stand-alone solar electric system will supply electricity come rain or shine. That kind of independent, or off-grid, system stores energy for nights and cloudy days in a bank of batteries. However, those of us with grid-intertied electric systems or houses and businesses which totally rely on the local utility company, lose all power during a temporary blackout or when weather damage knocks out power lines for days.

With a Battery Back-up Power System, even when the grid goes down, you can still have power for essential electrical loads—with or without an alternate source of power. Back-up power systems rely on a bank of batteries to store enough energy to power certain appliances. The kind of back-up power system you choose will depend on whether you plan to charge your batteries with grid power, solar power, or with a combination of the two. See diagram of Back-up power components.

Wholesale Solar's Pre-Wired, Pre-Assembled, Pre-Tested
Expandable Battery Back-up Power Packages:

Grid Assisted Battery Backup
Solar Battery Backup
Solar Panel Add-on
Battery Add-on
Basic Mobile Backup

Plug 'n Play Back-up Power Systems, Grid-Powered
Plug n Play Backup Power Systems, Grid-Powered
Inverter Output AC Volts Batteries Power Supply Part Number Price
4,000 watts 120 9.6kW Grid 9222100 $5,699
4,000 watts 240 5.3kW Grid 9244480 $5,899
You can increase the storage capacity of your Back-up Power System with our Battery Add-on Packages.

*The above systems do not come with solar panels, but could be charged by solar panels or a generator of your choice. See Solar Options below. By plugging these systems into an electrical outlet, the batteries are kept charged and are ready to supply power if the grid goes down. The batteries will supply electricity for a critical amount of time, but not indefinitely. Using a generator for recharging batteries is an option for areas with little sun, but you must store fuel and maintain a generator that may suffer from lack of regular use.
By adding just ONE solar panel to your Back-up Power System, you will have an extra source for recharging your batteries AND your system will qualify for a Federal tax credit of up to 30% off total cost of the system, as well as solar rebates in many states.

Plug 'n Play Battery Back-up Systems, Grid-Tied with Solar Panels

Plug n' Play Backup Power Systems, Grid- and Solar-Powered
Inverter Output Batteries Power Supply Part Number Price
600 watts 2.4kW one Kyocera KD135 watt solar panel, and grid, if available 9206100 $2,399
3,600 watts 5.3kW four Kyocera KD135 watt solar panels, and grid, if available 9336480 $7,622
*Both of the above systems will be constantly charged by grid power while it is available and, by solar power, when the sun is shining. The combination gives you reliable backup power and can be sized for your budget and your electrical needs. Both qualify for Federal Tax Credit of 30% of the cost of the system. You can increase the storage capacity of your Back-up Power System with our Battery Add-on Packages.


How many hours will my backup power system run? How big a system should I buy?
The amount of back-up power available is determined by several factors— the number and storage capacity of your batteries, the amount of electricity you are drawing from the batteries, and the amount of recharging you get from your recharge source. Your decision of how big a system to buy may be determined by your budget, or you may have to size it for particular emergency loads.

Sizing a system exactly for certain loads is the same as sizing an off-grid solar power system. See this power usage chart of common appliances to help you determine your storage needs. Then download this Load Evaluation Worksheet to figure out how much electricity your essential loads will require. Call Wholesale Solar to help you size your system: 1 (800) 472-1142.

back up solar power Download Specifications
magnum inverter solar backup power Basic Battery Backup Power Package solar backup power Specs
Magnum Energy MS 4024
sinewave inverter
Wholesale Solar's Basic Backup Power Packages

Info Center Battery Backup Systems

4.8 kWh solar backup power
Above: 4.8 kWh Basic Backup Power Package

Below: 9.6 kWh Basic Backup Power Package
9.6 kWh solar backup power


Solar Add-On Packages

Click for List of Components
Part Number Price

WSS Backup Power Solar Option One

9230200

$2,299

WSS Backup Power Solar Option Two
9230202

$2,035


Adding solar panels to your Back-up Power System qualifies you for a Federal tax credit of up to 30% off total cost, as well as solar rebates in many states.

The addition of solar panels to your Back-up Power System allows you to re-charge your battery bank when power lines are down and when obtaining gasoline for a gas generator is impossible or undesirable.

This is a necessary add-on for emergency back-up power in areas that get hit by hurricanes. We also sell the Basic Back-up Power Package with Solar Option 1 or 2 for off-grid living in cabins, boats and RV's.

This is easy, affordable energy independence!

solar backup power package

Solar Option 1 includes 4 Kyocera KC 130 panels, a Xantrex C40 charge controller, an MNPV-6 combiner box, an 8' of cable extension, and an OBPV-15 series protection


Battery Add-On Packages

Click for List of Components
Download Manual (PDF) Part Number Price
WSS MNBE-B Battery box with 9.6kW Batteries, Cables
58KB (PDF) 9210150

$2,454

WSS MNBE-C Battery box with 14.4kW Batteries, Cables
65KB (PDF) 9220150

$3,794

The more batteries you use to store energy, the longer your Back-up Power System will supply power during an emergency.

Here are two options for expanding your Back-up Power System. With the 8 Battery Add-On, you add eight 200 amp hour 6 volt UPG batteries for an additional 9.6 kW/hours of stored power. With the12 Battery Add-On, you add twelve 200 amp hour 6 volt UPG batteries for an additional 14.4 kW/hours of stored power!





MidNite Solar MNBE-B battery enclosure backup power
Our 8 Battery Add-on houses 8 UPG 200 amp 6 volt AGM batteries in a Midnite Solar MNBE-B battery enclosure with locking door.

solar power battery backup

Here's a 12 Battery Add-on housed in Midnite Solar's MNBE-C battery enclosure with locking door.



Simple, Mobile Back-up Power

Item: Part Number Price:
2417042 $505

Back-up power systems can be as simple as a roll-around cart with a charged battery and small inverter that you plug into when the power goes down.

The Xantrex Xpower Powerpack 1500 X is an alternative to a generator—no noise, no fumes, no fuel, and no moving parts.  With the accessories provided, it can be recharged using utility power from your wall outlet, from your vehicle, or from a solar panel.


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