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5,000 + Solar Kits Sold

FORTRESS POWER Home Battery Backup Systems

  • Save $1,792.00 Save $0.00
    $4,375.00
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    $2,583.00
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    $2,583.00

    Fortress Power eFlex 5.4kWh LFP Battery

    Introducing the Fortress Power eFlex 5.4kWh LFP Battery - the flexible and efficient energy storage solution for your home or business. With a comp...

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    $4,375.00
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    $4,375.00
    $2,583.00
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  • Save $3,185.00 Save $0.00
    $12,500.00
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    $9,315.00
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    $9,315.00

    Fortress Power eVault Max 18.5kWh LFP Battery

    Introducing the Fortress Power eVault Max 18.5kWh LFP Battery - the ultimate energy storage solution for your home or business. With a massive 18.5...

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    $12,500.00
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    $12,500.00
    $9,315.00
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    Save $3,185.00 Save $0.00
  • Save $3,799.75 Save $0.00
    $18,998.75
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    $15,199.00
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    $15,199.00

    Fortress Power Durarack with 4 eFlex Batteries - IP65 Outdoor Rated Enclosure with 4 eFlex Units Included, Total Capacity of 21.6 kWh

    Introducing the Fortress Power Durarack - the ultimate outdoor energy storage solution for your home or business. The Durarack is an IP6...

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    $18,998.75
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    $18,998.75
    $15,199.00
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    Save $3,799.75 Save $0.00
  • Save $2,914.75 Save $0.00
    $14,573.75
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    $11,659.00
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    $11,659.00

    Fortress Power FlexTower With DuraRack & 3 eFlex Batteries 16.2kWh

    Introducing the Fortress Power FlexTower - the ultimate energy storage solution for your home or business. The FlexTower is a complete energy stor...

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    $14,573.75
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    $11,659.00
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    Save $2,914.75 Save $0.00
  • Save $1,332.25 Save $0.00
    $6,531.25
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    $5,199.00
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    $5,199.00

    Fortress Power Envy 12kW

    The Fortress Power Envy 12kW inverter is an all-in-one solution for powering an entire home. It can be paired with either the eFlex 5.4 kWh, eV...

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    $6,531.25
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    $5,199.00
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    Save $1,332.25 Save $0.00
  • Save $257.75 Save $0.00
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    $1,366.00
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    Fortress Power DuraRack – Indoor / Outdoor Enclosure

    Description Expand your energy storage with the Fortress Power DuraRack. This iron enclosure stores up to 4 eFlex 5.4kWh batteries, and is expandab...

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    $1,623.75
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    Save $257.75 Save $0.00
  • Save $1,187.50 Save $0.00
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    $4,750.00
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    Fortress Power LFP-10 MAX – 10kWh Lithium Battery

    The LFP-10 Max battery from Fortress Power is a highly efficient and dependable solution for solar power customers, both new and retrofit. Its inst...

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    $5,937.50
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    $4,750.00
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    Save $1,187.50 Save $0.00