Original price
$3,549.00
-Original price
$3,819.00
Original price
$3,549.00
$3,549.00-$3,819.00
Current price
$3,549.00
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8kW / 10kW · Hybrid · 10-Year Warranty
Fortress Power Envy 8kW/10kW Hybrid Inverter
The Envy 8/10kW is a single hybrid inverter configurable for either 8kW or 10kW of continuous output, with dual MPPT solar input and a 60A AC passthrough for whole-home or essential-circuit backup.
It parallels with up to 9 more units for up to 100kW combined, and integrates with Fortress Power's eVault MAX, eFlex, eFlex MAX, and LFP-10 MAX batteries.
10-Year Warranty
Lowest Price Guarantee
Authorized Fortress Power Dealer
Free Shipping
0% APR Financing
Expert Support: (303) 876-7654
Why the Envy 8/10kW
8kW or 10kW, One Inverter
A single inverter selectable between 8kW and 10kW continuous output, so you pick the capacity that matches your load without buying a different model.
Dual MPPT, Up to 15kW of Solar Input
Two independent MPPT trackers accept up to 13kW (8kW mode) or 15kW (10kW mode) of solar PV input across separate strings.
Parallel Up to 10 Units
Stack up to 10 units for up to 80kW (8kW mode) or 100kW (10kW mode) of combined AC output as a system grows.
60A AC Passthrough
Delivers consistent power to essential circuits or the whole home during grid outages, with seamless switching.
Rapid Shutdown Built In
An integrated APsmart Module Level Rapid Shutdown transmitter and button meet NEC 2017/2020 code requirements without external devices.
Remote Monitoring and Firmware Updates
Monitor performance and push firmware updates remotely through the Fortress Power app — no truck roll for routine checks.
What's Included
What You Get
1 × Fortress Power Envy 8kW/10kW Hybrid Inverter (select 8kW or 10kW mode at setup)
Integrated AC and DC breakers
APsmart Rapid Shutdown Transmitter and button
Documentation
Battery bank and solar array sold separately.
8kW vs. 10kW Mode
Same inverter, two output modes — pick the one that matches your system.
Spec
8kW Mode
10kW Mode
Continuous AC Output
8,000W (240V)
10,000W (240V)
Peak Output
16kW for 500ms
20kW for 500ms
Max PV Input
13,000W
15,000W
Max Continuous AC Current
33.3A @ 240V
41.6A @ 240V
Max Charge/Discharge Current
167A
210A
Max Combined Output, Paralleled (10 units)
80kW
100kW
Full Specifications
Model
Fortress Power Envy 8kW/10kW Hybrid Inverter
DC Input Voltage Range
100V–600V (nominal 360V)
MPPT Trackers
2
Max DC Input Per MPPT
6,000W
Max Power to Battery & AC Outputs
12,000W
AC Passthrough (Grid or Generator)
14,400W (240V) AC passthrough / 12,000W (240V) generator
UL1741, UL1741SB, IEEE1547A, Rule 21, ISO-NE, FCC15 Class B, HECO, CEC, Luma, SGIP, NOM
Warranty
10 years
Monitoring
Real-time inverter monitoring via RS485/Wi-Fi/CAN, instant warranty registration
Authorized Fortress Power Dealer
We sell genuine Fortress Power products backed by Fortress Power's own warranty.
Lowest Price Guarantee
Find it cheaper from another authorized dealer? Call (303) 876-7654 before you order.
Real Support, Not a Ticket Queue
Sizing a system or checking inverter compatibility? Call (303) 876-7654 and talk to a person.
Fortress Power Envy 8kW/10kW Hybrid Inverter: Frequently Asked Questions
How do I choose between 8kW and 10kW mode?
It's the same inverter, configured for your load at setup — 8kW suits a smaller backup circuit, 10kW covers more of a whole-home system. Call (303) 876-7654 and we can help you size it to your actual panel and appliance loads.
What batteries does this work with?
Fortress Power's eVault MAX, eFlex, eFlex MAX, and LFP-10 MAX batteries at a nominal 48V. Confirm compatibility with your specific battery model — call (303) 876-7654 if you're not sure.
Can I run this in a 3-phase commercial setup?
Yes, with two or more inverters it supports 120/208V three-phase configurations in addition to standard residential 120/240V split-phase.
Can I add more inverters later for more power?
Yes, up to 10 units can be paralleled for up to 80kW (8kW mode) or 100kW (10kW mode) of combined AC output.
Does this qualify for Virtual Power Plant programs?
It's VPP-ready and utility-approved across the U.S. and Puerto Rico, so it can participate in demand-response programs that pay for discharging stored energy during peak demand, where those programs are available.
Can I install this myself, or do I need an electrician?
Fortress Power's equipment is designed for professional installation. We strongly recommend a licensed electrician or solar installer for any battery, inverter, or enclosure installation — call (303) 876-7654 if you need a referral in your area.
Do you offer financing or price matching?
Yes. We offer 0% APR financing options through Affirm at checkout, and our Lowest Price Guarantee applies — if you find this product cheaper at another authorized Fortress Power dealer, call us at (303) 876-7654 before you order and we'll take care of it.
