SKU: 57594689420

1,144 KWh (1 MWh) Industrial Battery Backup And Energy Storage Systems (ESS) (277/480Y Three Phase)

Sale price$667180.80 Regular price$741312.00
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Description

1,144 KWh (1 MWh) Industrial Battery Backup And Energy Storage Systems (ESS) (277/480Y Three Phase)The industrial battery backup and energy storage system for generator replacement can typically power a 500 KVA 480 VAC load for over 2 hours. Backup time increases as the load drops with minor energy consumption adjustments like selectively running HVAC, turning off all unnecessary lights, and powering down and unplugging all non critical appliances. Need more backup time? Just add another unit. The only limit is the number of circuits available on

The industrial battery backup and energy storage system for generator replacement can typically power a 500 KVA 480 VAC load for over 2 hours. Backup time increases as the load drops with minor energy consumption adjustments like selectively running HVAC, turning off all unnecessary lights, and powering down and unplugging all non-critical appliances. 

Need more backup time? Just add another unit. The only limit is the number of circuits available on your electrical panel. One unit takes up one breaker space.

The system is UL and CE listed, made in the USA (California), and made up of LiFePO4 (lithium iron phosphate) batteries. LiFePO4 batteries are much, much safer than standard lithium batteries and have a 10 year minimum approximate useful life. 

Besides acting as a battery backup system, it also allows for demand charge reduction (lower electric bill), peak shaving (lower electric bill), and integrates with solar panels (micro inverter systems), wind power, or other energy sources.  

  • Voltage/Connection: 277/480 Three Phase
    • Uses 350 Amp Three Pole Breaker Minimum
  • Power Rating: 500 KVA Minimum
  • Battery Capacity: 1,144 KWh (1 MWh)
    • Typically Runs A 500 KVA Load For ~2 Hours
    • Typically Runs A 250 KVA Load For ~4 Hours
    • Typically Runs A 100 KVA Load For ~ 10 Hours
    • Typically Runs A 50 KVA Load For ~ 20 Hours
  • DC Bus Voltage: 666 Volts
  • DC Amp Hours: 1,728 Ah
  • Dimensions (D x W x H): 20' x 8' x 8'
  • Weight: 15.7 tons
  • Container: NEMA 3R / IP 54
  • Compliance: CE, UL
    • Batteries Are UL 1973
    • Inverter Is UL 1741
  • Standard Warranty: 10 Years
  • Operation Mode: On Grid or Off Grid
  • Part Number: BBP-EP-500KVA-1144KWH-277480SP

For more information, please contact Battery Backup Power, Inc. at by phone at (855) 330-7799, by chat (lower right hand corner of this screen), or by email at [email protected]

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 57594689420

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Donna A.
Massapequa, US
★★★★★ 5
Very comfy sheets, nice fabric
Size: Full, Color: Oatmeal
I wasn’t expecting such good quality forthis price. They’re very soft, but of fairly thick fabric. I’m sleeping great on them. The pockets are deep enough for an 8” foam mattress plus my 3” topper. Will be getting another set for the second bedroom.
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H. Simon
Birmingham, US
★★★★★ 5
Great Sheets!
Size: Twin, Color: Oatmeal
Super soft, wash up beautifully, seem well made — very happy! It’s very hard to find 100% cotton t-shirt type sheets and these are really lovely.
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Reviewed in the United States on June 1, 2026
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Chris
Fort Morgan, US
★★★★★ 3
Weirdly textured
Size: King, Color: Dark Gray
I have bought and loved jersey sheets in the past, that have all been as soft as a well worn cotton t-shirt. These arent soft. They have the stretch of jersey, but not the soft smooth texture that they should have. Even after washing a few times these are one of my least favorite sheets I've ever bought on Amazon.
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Reviewed in the United States on May 30, 2026
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Aimee H
Charlottesville, US
★★★★★ 5
I love these! Great quality
Color: Brown, Lens Width: 37 Millimeters
I love these! Perfect glasses!!! Absolutely gorgeous!!!
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Reviewed in the United States on January 10, 2026
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Angela Z.
Fort Morgan, US
★★★★★ 5
My second pair! ❤️
Color: Brown, Lens Width: 37 Millimeters, Color: Brown, Lens Width: 37 Millimeters
If I could give these glasses ten stars, I would! In fact I just ordered a second pair. I’ve been an Amazon customer for years and this is by far the best deal I’ve ever had. These are legit, well made Harley Davidson sunglasses with the Harley tag attached. They are worth WAY more than the $13 that I paid. They came in a hard shell Harley Davidson case! Last year I bought the same case for my husband’s glasses and the case alone was $14.99! Don’t hesitate to buy these! I was concerned about the size but figured I could return them. The size is perfect and comparable to glasses you’d find anywhere.
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Reviewed in the United States on November 29, 2025

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