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Fortress Power Solar hybrid inverter; Max 13KW PV array; IP 65 outdoor rated; Built-in APSmart RSD Transmitter - Envy 8 kW

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Fortress Power Solar hybrid inverter; Max 13KW PV array; IP 65 outdoor rated; Built-in APSmart RSD Transmitter - Envy 8 kW

$4,231.94 USD

$ $4,231.94 USD

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9+ sold

In the last 7 days

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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 Portlandia Electric Supply. 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 Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Fortress Power Envy 8 kW — Whole-Home Hybrid Inverter

The Fortress Power Solar hybrid inverter – Envy 8 kW is a powerful, intelligent energy solution designed for modern solar and battery systems. Built for efficiency, durability, and seamless energy management, this advanced hybrid inverter supports both grid-tied and off-grid uses. With a Max 13KW PV array, IP 65 outdoor rated enclosure, and a Built-in APSmart RSD Transmitter – Envy 8 kW, it delivers unmatched performance for residential and light commercial installations.

Engineered to adapt to fluctuating energy needs, the Fortress Power Solar hybrid inverter – Envy 8 kW lets users generate, store, and manage power efficiently while maintaining system safety and long-term reliability.

Fortress Power Envy 8 kW is an all-in-one hybrid inverter that enables whole-home backup, AC/DC coupling, built-in generator input, and integrated APSmart rapid-shutdown transmitter for fast, code-friendly installs on 120/240 V split-phase (and also 120/208 V / 208 V 3-phase capable). ^[datasheet]

Key features

2 MPPT with max 13 kW PV input; 12 kW PV power delivered to battery & AC outputs
8 kW continuous AC output @ 240 V; 16 kW surge (500 ms)
NEMA 4X / IP65 outdoor-rated enclosure; color LCD; Wi-Fi/RS485/CAN monitoring
50 A / 12 kW auto-start generator port; parallel up to 10 inverters
Built-in APSmart RSD transmitter (SunSpec PLC); Tigo transmitters compatible (see manual)

Specifications

**Envy 8 kW** — specification box
PV input (DC)
MPPTs / strings	2 MPPT (2 strings each)
Max PV input	13,000 W
PV → battery & AC (max)	12,000 W
Voltage window	100–600 V (recommended max 550 V); full-power MPPT 170–500 V
Current limits	25 A / 25 A (I_sc 31 A / 31 A)
AC (grid / passthrough)
Continuous to grid	8,000 W @ 240 V (also 8,000 W @ 208 V)
AC passthrough / GEN	14,400 W passthrough · 50 A / 12 kW generator input
Nominal voltages	120/240 V split-phase; 120/208 V split-phase; 208 V 3-phase
AC output (backup/off-grid)
Rated output	8,000 W @ 240 V
Surge	16 kW (500 ms); transfer time < 20 ms
Battery interface
Voltage / range	48 V nominal (40–60 V)
Max charge/discharge	167 A · 8,000 W
Chemistry	LiFePO₄ (eVault MAX, eFlex, LFP-10 MAX) or other lithium (open-loop) / lead-acid
Efficiency & protection
MPPT / Max / CEC	99.9% / 97.5% / 96.5%
Ratings	NEMA 4X · IP65 · AFCI · SPD · anti-islanding · DC switch
Rapid shutdown	Built-in APSmart transmitter (SunSpec PLC); Tigo TX compatible
General
Dimensions (H × W × D)	29.5″ × 20.5″ × 11.23″
Weight	≈ 110 lb
Comms	RS485 · Wi-Fi · CAN; app & remote monitoring
Certifications	UL1741, UL1741SB, IEEE 1547A, Rule 21, ISO-NE, FCC15-B, HECO, CEC, Luma, SGIP, NOM
Warranty	10 years

Figures have been verified from the official Fortress Power datasheet & installation manual; price/availability confirmed on supplier & dealer pages. ^{[datasheet / manual / dealers]}

What Makes the Fortress Power Solar hybrid inverter - Envy 8 kW Stand Out?

The Fortress Power Solar hybrid inverter - Envy 8 kW is designed using cutting-edge technology to ensure consistent power flow and smart energy distribution. Its hybrid mode allows smooth switching between solar energy, battery storage, and utility grid, ensuring uninterrupted supply during outages or peak demand.

With support for a Max 13KW PV array, this unit accommodates high solar input, fitting properties with expanding solar capacity. When paired with lithium batteries or as a grid-interactive system, it offers flexible settings for diverse energy needs.

High-Capacity Performance with Max 13KW PV Array

One main advantage of the Fortress Power Solar hybrid inverter - Envy 8 kW is its ability to handle a Max 13KW PV array. It enables more solar production without losing system efficiency. This guarantees optimal energy harvest even during peak sunlight.

The inverter manages DC-to-AC conversion efficiently while maintaining high efficiency rates. Advanced MPPT tracking maximizes power extraction, reducing energy loss and boosting overall output. It is perfect for users aiming to maximize solar use and lower grid dependency.

IP 65 Outdoor Rated Design for All-Weather Reliability

The IP 65 outdoor rated enclosure ensures the Fortress Power Solar hybrid inverter – Envy 8 kW operates reliably in tough environments. It protects fully against dust, moisture, and water jets, suitable for outdoor installation without extra housing.

This strong design boosts durability and reduces maintenance, ensuring steady performance in all climates. Whether in hot, humid, or cold areas, the inverter guarantees stable operation and dependable power delivery.

Built-in APSmart RSD Transmitter – Envy 8 kW for Enhanced Safety

Safety is key in modern solar systems, and the Built-in APSmart RSD Transmitter – Envy 8 kW provides crucial protection. This rapid shutdown feature meets electrical safety standards and allows quick disconnection of solar arrays in emergencies.

Embedding the APSmart RSD transmitter into the inverter simplifies installation while improving system reliability. This feature benefits homes and businesses that value safety, compliance, and easy maintenance.

Intelligent Energy Management & Battery Compatibility

The Fortress Power Solar hybrid inverter – Envy 8 kW integrates fully with advanced battery systems. Users can store excess solar energy for night or backup use. Smart energy management controls load prioritization and efficient battery charging/discharging in real time.

These smart controls help optimize energy use, cut electricity bills, and ensure power remains available during outages. The inverter is a future-ready solution for evolving energy demands.

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

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?

Fortress Power Envy 8 kW — Whole-Home Hybrid Inverter

Key features

2 MPPT with max 13 kW PV input; 12 kW PV power delivered to battery & AC outputs
8 kW continuous AC output @ 240 V; 16 kW surge (500 ms)
NEMA 4X / IP65 outdoor-rated enclosure; color LCD; Wi-Fi/RS485/CAN monitoring
50 A / 12 kW auto-start generator port; parallel up to 10 inverters
Built-in APSmart RSD transmitter (SunSpec PLC); Tigo transmitters compatible (see manual)

Specifications

**Envy 8 kW** — specification box
PV input (DC)
MPPTs / strings	2 MPPT (2 strings each)
Max PV input	13,000 W
PV → battery & AC (max)	12,000 W
Voltage window	100–600 V (recommended max 550 V); full-power MPPT 170–500 V
Current limits	25 A / 25 A (I_sc 31 A / 31 A)
AC (grid / passthrough)
Continuous to grid	8,000 W @ 240 V (also 8,000 W @ 208 V)
AC passthrough / GEN	14,400 W passthrough · 50 A / 12 kW generator input
Nominal voltages	120/240 V split-phase; 120/208 V split-phase; 208 V 3-phase
AC output (backup/off-grid)
Rated output	8,000 W @ 240 V
Surge	16 kW (500 ms); transfer time < 20 ms
Battery interface
Voltage / range	48 V nominal (40–60 V)
Max charge/discharge	167 A · 8,000 W
Chemistry	LiFePO₄ (eVault MAX, eFlex, LFP-10 MAX) or other lithium (open-loop) / lead-acid
Efficiency & protection
MPPT / Max / CEC	99.9% / 97.5% / 96.5%
Ratings	NEMA 4X · IP65 · AFCI · SPD · anti-islanding · DC switch
Rapid shutdown	Built-in APSmart transmitter (SunSpec PLC); Tigo TX compatible
General
Dimensions (H × W × D)	29.5″ × 20.5″ × 11.23″
Weight	≈ 110 lb
Comms	RS485 · Wi-Fi · CAN; app & remote monitoring
Certifications	UL1741, UL1741SB, IEEE 1547A, Rule 21, ISO-NE, FCC15-B, HECO, CEC, Luma, SGIP, NOM
Warranty	10 years

Figures have been verified from the official Fortress Power datasheet & installation manual; price/availability confirmed on supplier & dealer pages. ^{[datasheet / manual / dealers]}

What Makes the Fortress Power Solar hybrid inverter - Envy 8 kW Stand Out?

High-Capacity Performance with Max 13KW PV Array

IP 65 Outdoor Rated Design for All-Weather Reliability

Built-in APSmart RSD Transmitter – Envy 8 kW for Enhanced Safety

Intelligent Energy Management & Battery Compatibility

These smart controls help optimize energy use, cut electricity bills, and ensure power remains available during outages. The inverter is a future-ready solution for evolving energy demands.

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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 Portlandia Electric supply 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 Portlandia Electric Supply.

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 Portlandia Electric Supply 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 Portlandia Electric Supply. 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 Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply 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 Portlandia Electric Supply 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.

Jacob B

Easy Process, Genuine Support

Patrick B

Off Grid Solar Purchase

James Martin

Highly Recommend

Brian H

Solar Kit for Mobile Work Van

Keith S

Best Tech Support

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