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No Sales Tax 💵 Beat-Anyone Price Match 💲 Free Parts for Life 🛠️ Free Shipping on Most Items 📦

No Sales Tax 💵 Beat-Anyone Price Match 💲 Free Parts for Life 🛠️ Free Shipping on Most Items 📦

No Sales Tax 💵 Beat-Anyone Price Match 💲 Free Parts for Life 🛠️ Free Shipping on Most Items 📦

No Sales Tax 💵 Beat-Anyone Price Match 💲 Free Parts for Life 🛠️ Free Shipping on Most Items 📦

No Sales Tax 💵 Beat-Anyone Price Match 💲 Free Parts for Life 🛠️ Free Shipping on Most Items 📦
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Fortress Power

Fortress Power

Fortress Power Energy Storage

Fortress Power builds LiFePO4 batteries and hybrid inverters for reliable home and commercial energy storage.

eVault, eForce & Envy

Stackable batteries pair with Envy hybrid inverters for scalable whole-home backup and off-grid systems.

Design Your System

Match capacity and inverter to your loads. Shop now or call our experts.

  • Fortress Power Envy True 12kW Solar Hybrid Inverter-ENVYTRUE12 with its front cover open, revealing the internal wiring layout and labeled electrical components
    Fortress Power Envy True 12kW Solar Hybrid Inverter-ENVYTRUE12 with a clean white top panel, dark lower section, and a digital display screen
    Sold out
    Fortress Power Fortress Power Envy True 12kW Solar Hybrid Inverter
    $7,243.99
    $6,298.97

    Envy True 12kW Battery Makes Your Living Room Outage-ProofFortress Power Envy True 12kW Solar Hybrid Inverter - ENVYTRUE12 delivers reliable whole ...

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    $7,243.99
    $6,298.97
    Sold out
  • The opened casing reveals the inner wiring and connectors of the Fortress Power eForce 9.6kW Lithium Battery-EFORCE9.6
    Fortress Power eForce 9.6kW Lithium Battery-EFORCE9.6 is shown as a sleek gray-and-black wall-mounted battery unit with simple side controls
    Sold out
    Fortress Power Fortress Power eForce 9.6kW Lithium Battery
    $6,668.99
    $5,798.97

    Live Brighter With the Fortress 9.6 Battery by Your SideFortress Power eForce 9.6kW Lithium Battery - EFORCE9.6 delivers reliable whole home energy...

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    $6,668.99
    $5,798.97
    Sold out
  • An open battery compartment reveals internal wiring inside the Fortress Power eForce 19.2kW Lithium Battery-EFORCE19.2
    Fortress Power eForce 19.2kW Lithium Battery-EFORCE19.2 is shown as a tall gray and black wall-mounted battery unit
    Sold out
    Fortress Power Fortress Power eForce 19.2kW Lithium Battery
    $11,728.99
    $10,198.97

    Make Every Room Feel Secure With Fortress Eforce 19.2kW BackupFortress Power eForce 19.2kW Lithium Battery - EFORCE19.2 delivers high capacity ener...

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    $11,728.99
    $10,198.97
    Sold out
  • Fortress Power Envy 8kW Solar Hybrid Inverter-ENVYTRUE8 appears angled, showing its sturdy casing and front display screen
    Fortress Power Envy 8kW Solar Hybrid Inverter-ENVYTRUE8 is a wall-mounted white and gray unit with a small digital display
    Sold out
    Fortress Power Fortress Power Envy 8kW Solar Hybrid Inverter
    $6,208.99
    $5,398.97

    Power Your Peace With the Unstoppable Fortress Envy HybridFortress Power Envy 8kW Solar Hybrid Inverter – ENVYTRUE8 delivers reliable whole home ba...

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    $6,208.99
    $5,398.97
    Sold out

The Krato Power Promise

Why customers buy their power systems from us

💵
No Sales Tax
Save hundreds to thousands vs local retail. Why?
💲
Beat-Anyone Price Match
Found it cheaper? We'll beat it. See how
🛠️
Free Parts for Life
Genuine replacement parts, free. Details
📦
Free Shipping on Most Items
Ships in 1 business day. Heavy freight: free to 19 states + DC, flat rate elsewhere.

Questions? Call 1-888-855-7286 - US-based experts, M-F 9-5 CST.