Fortress Power Envy True 8 | 8kW 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 8KW Specifications
Input DC (PV Side)
- Max. DC Input Power for Single MPPT 6000W / 6000 W
- Max. PV Input Power 13000W
- 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 170V-500V
- Max. DC Input Current 25A / 25A
- MPPT Number/(Strings per MPPT) 2 / 2
Output/Input AC (Grid)
- Continuous AC Power to Grid 8000W (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 33.3A @ 240V
- Nominal AC Frequency 50Hz/60Hz
Output AC (Off-Grid)
- Max. Output Power 8000W
- Nominal Output Voltage 120V/240V
- Nominal Output Frequency 50Hz/60hZ
- Nominal Output Current 33.3A @ 240V
- Peak Power 16kW / 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 167A
- Maximum Charging/Discharging Power 8000W
Efficiency
- 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 5 Years
Still Have Questions? Give us a call today 1-877-242-2792
What is your return policy?
Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.
What’s covered by your return policy?
Our returns policy covers all purchases made through Shop Solar. 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 order?
All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 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 your financing and payment options?
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, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.
How does your Lifetime Customer Support work?
Our legendary lifetime customer support has helped make us the #1 online solar 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.
Top Solar Company in the USA
The prestigious ranking by Consumer Affairs is based on comprehensive evaluations, including ratings and reviews, equipment options, support services, pricing transparency, warranties, and various other factors. Among the top 6 nominated companies, Shop Solar stands out with the highest review rating, reaffirming its dedication to customer satisfaction and product quality.
Best Components, Lowest Prices
We cut out the bloat of traditional solar companies and pass those savings off to you. Plus, we provide free shipping on all solar kits and lifetime customer service on everything we sell.
Expert Guidance
Our team of solar professionals is here 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.
We’re people just like you
We’re not corporate and neither are our customers. We’re just a group of 50+ solar enthusiasts who are passionate about providing an honest, no-BS way for anyone, anywhere to improve their lives and the world around them with solar power.
Trusted Solar Authority
With over 40,000+ happy customers, 2,500+ positive reviews, and decades of experience in the industry, we’re proud to say we’re America’s #1 solar power solutions provider. You can trust us to provide you with top-notch products and legendary customer service at every step of the way.
Prepare for Anything
From hurricanes to blackouts, reliable solar power ensures you're able to keep your home & family safe no matter what comes your way.
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Making one-click solar solutions simple since 2018. Whether you’re powering a cabin, charging devices, or backing up your home.
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Say goodbye to reliance on the energy companies. Enjoy the same freedom that 50,000+ customers have with their own solar power system.
Why Choose Shop Solar
Go Solar Now, Pay Later
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How we compare to the others!
Tired of the costly and complicated traditional solar sales model? At ShopSolar.com, we streamline the process with our digital-first platform, offering one-click complete solar power solutions that save you up to 50%, often including batteries, for true energy independence. Join over 45,000 satisfied customers enjoying affordable solar energy. Start your journey towards saving thousands at ShopSolar.com today!
Customer Success Stories
Troy P
EG4 off-grid base kit, Happy with my purchase.
This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.
Jacob B
Easy Process, Genuine Support
Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Shop Solar team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Shop Solar.
Patrick B
Off Grid Solar Purchase
I wanted to get an offgrid solar system for years but didn’t know where to start. I found Shop Solar on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!
James Martin
Highly Recommend
I would like to take the time to express the outstanding service that I was provided with by Shop Solar. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Shop Solar Kits.
Brian H
Solar Kit for Mobile Work Van
As a professional videographer, I needed reliable power on the go. ShopSolar's Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.
Keith S
Best Tech Support
You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!
Coll A
Great Experience
My experience with Shop Solar has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.
Troy P
EG4 off-grid base kit, Happy with my purchase.
This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.
Jacob B
Easy Process, Genuine Support
Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Shop Solar team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Shop Solar.
Patrick B
Off Grid Solar Purchase
I wanted to get an offgrid solar system for years but didn’t know where to start. I found Shop Solar on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!
James Martin
Highly Recommend
I would like to take the time to express the outstanding service that I was provided with by Shop Solar. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Shop Solar Kits.
Brian H
Solar Kit for Mobile Work Van
As a professional videographer, I needed reliable power on the go. ShopSolar's Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.
Keith S
Best Tech Support
You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!
Coll A
Great Experience
My experience with Shop Solar has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.
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