Fortress Power Envy 10kW Inverter -
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Fortress Power Envy True 10 | 10kW Whole Home Solar Storage Inverter

Current price $5,850
Original price $7,312
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Fortress Power Envy True 10 | 10kW Whole Home Solar Storage Inverter

The Fortress Power Envy 8kW and 10kW are a whole-home, all-in-one inverter solution. Paired with the Fortress Power eFlex 5.4 kWh, the eVault MAX 18.5 kWh or LFP-10 MAX batteries, the Envy features a 90A AC passthrough providing up to 8kW (33.3@ 240V) or 10kw (41.6A @240V) of whole-home backup power.

The Envy features a built-in generator input with AC/DC coupling, on- and off-grid capabilities, plus a 2 MPPT output allowing for a maximum of 13 kW PV array (Envy 8kW) or 15kW PV array (Envy 10kW). The Envy is equipped with a built-in APsmart Module Level Rapid Shutdown Transmitter and Button, along with integrated AC & DC breakers allowing for fast installation and commissioning. Use our online monitoring app to access your system from anywhere.

Key Features:

  • IP65 Rated For Indoor & Outdoor Installations
  • 2 MPPTs Output For:
    - Max Input 13KW PV Array (Envy 8kW)
    - Max Input 15KW PV Array (Envy 10kW)
  • AC/DC Coupling
  • 90A Built-In Auto Transfer Switch
  • Built-In Generator Input
  • 5 Units In Parallel
  • Online Monitoring/App
  • Color LCD Touch Screen.
  • 3 Phase Compatible (Upcoming Feature)

Supported Applications:

  • Backup
  • Off-Grid
  • Zero Export
  • Time-Of-Use
  • Virtual Power Plant

Fortress Power Envy 10KW Specifications

Input DC (PV Side)

  • Max. DC Input Power for Single MPPT 6000W / 6000 W
  • Max. PV Input Power 15000W
  • Max. PV Power Delivered to Battery & AC Outputs 12000W
  • DC Input Voltage Range 100V-600V
  • Nominal DC Input Voltage 360V
  • Full Power MPPT Voltage Range 210V-500V
  • Max. DC Input Current 25A / 25A
  • MPPT Number/(Strings per MPPT) 2 / 2

Output/Input AC (Grid)

  • Continuous AC Power to Grid 10000W (240V)
  • Continuous AC Power to Load with Grid or Generator 21000W (240V) AC Passthrough/ 12000W (240) GEN
  • Nominal Output Voltage 120V/240V
  • Max. Continuous AC Current 41.6A @ 240V
  • Nominal AC Frequency 50Hz/60Hz

Output AC (Off-Grid)

  • Max. Output Power 10000W
  • Nominal Output Voltage 120V/240V
  • Nominal Output Frequency 50Hz/60hZ
  • Nominal Output Current 41.6A @ 240V
  • Peak Power 20kW / 500ms
  • Switching Time Seamless
  • Dedicated Auto-start Generator Port 50A / 12kW 

Battery Parameters

  • Compatible Battery Type eVault Max, eFlex, LFP-10 MAX
  • Nominal Battery Voltage 48V
  • Battery Voltage Range 48V-56V
  • Maximum Charging/Discharging Current 210A
  • Maximum Charging/Discharging Power 10000W


  • Max. Efficiency 97.5%
  • MPPT Efficiency 99.9%
  • CEC Efficiency 96.5%

General Data

  • Dimensions 580 x 490 x 265mm (22.8 x 19.3 x 10.4 in)
  • Weight 44kg (97lbs)
  • Display Color LCD
  • Ambient Temperature Range -25 to 60 °C (-13 to 140 °F)
  • Cooling FAN
  • Communication RS485/Wi-Fi/CAN
  • Warranty 10 Years

Still Have Questions? Give us a call today 1-877-242-2792

What is the Shop Solar Kits returns policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer must pay for the return shipping costs. See our complete return policy on our Shipping, Deliver, and Returns page.

What’s covered by the Shop Solar Kits returns policy?

Our returns policy covers all purchases made through Shop Solar Kits. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my Shop Solar Kits order?

All orders are processed within 72 hours and you can expect delivery within 5 to 10 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are the financing and payment options at Shop Solar Kits?

We offer several ways to pay to make getting your solar kit simple:

  • Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer
  • You can arrange financing during the checkout process, see our Financing page for more details

How does the Shop Solar Kits Lifetime Support work?

Our legendary lifetime customer support has helped make us the #1 solar kit retailer. We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Shop Solar Kits equipment, we’ve got you covered: we’re always only a phone call or email away.

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