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Fortress Envy 12 kW + eVault MAX 18.5 + Guardian monitoring
Fortress Envy 12 kW + eVault MAX 18.5 + Guardian monitoring
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Fortress Power Envy 12kW, One eVault Max 18.5, One guardian battery monitoring Envy12KW-Evault-BMG

Fortress Power Envy 12kW, One eVault Max 18.5, One guardian battery monitoring Envy12KW-Evault-BMG

$19,357.21 USD
$ $19,357.21 USD
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Unlimited lifetime support, always available.

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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 Envy 12 kW + eVault MAX 18.5 kWh + Guardian Gateway

SKU/MPN: Envy12KW-Evault-BMG • Application: Whole-home backup / grid-tied with storage • Chemistry: LiFePO4 (48 V) • Designed and engineered by Fortress, a leading innovator in energy solutions.

This carefully crafted product bundle from Fortress offers a complete hybrid energy solution for residential and light commercial use. It is designed to deliver reliable power storage and usage flexibility. The Fortress Envy 12 kW inverter combined with the eVault MAX battery creates a robust system that supports both backup and grid-tied setups. The Guardian Gateway adds an intelligent layer of monitoring and control, ensuring optimal performance.

What’s included in this Fortress Bundle

  • 1× Envy True 12 kW Hybrid Inverter — This inverter features 200 A AC passthrough and has three MPPTs capable of handling up to 21 kW of PV input. It supports both AC and DC coupling, allowing integration with new or existing solar panels. It also includes a generator input for added backup flexibility. The enclosure is rated NEMA 4X/IP65, making it suitable for outdoor use. (Dimensions: 34.2 × 20.5 × 11.2 in; Weight: 127 lb). [Datasheet / Manual]
  • 1× eVault MAX 18.5 kWh Battery — A high-capacity 51.2 V, 360 Ah lithium iron phosphate (LiFePO4) battery with integrated Battery Management System (BMS) and touchscreen display. The battery is protected by an IP55-rated aluminum enclosure. The large form factor ensures significant energy storage capability. Dimensions: 20.3 × 20.3 × 42.2 in; Weight: 520 lb. [Datasheet / Install Manual]
  • 1× Guardian Gateway — This gateway device provides battery-level monitoring including state of charge, voltage, current, and temperature. It supports remote firmware updates through its app interface. The device is designed for indoor use with an IP23 rating. (Dimensions: 7.25 × 6 × 1.25 in; Weight: 0.8 lb). [Datasheet]

Why choose this Fortress bundle

The Fortress bundle stands out for its flexibility and reliability in integrating energy systems. It adapts seamlessly to new or existing photovoltaic (PV) arrays using either AC or DC coupling. The fast transfer time improves power continuity during outages. The generator input makes the system generator-ready, increasing its backup capabilities.

Fortress has engineered a closed-loop integration feature in the system. This includes CAN/RS-485 communication between the Envy inverter and Fortress batteries. It allows smart charging and ensures performance and warranty compliance optimization. This cooperation between components enhances system stability and lifespan.

The hardware is also built for outdoor durability. The Envy inverter enclosure meets NEMA 4X/IP65 standards, making it weather-resistant and reliable in various environments. The eVault MAX battery uses a robust IP55 aluminum enclosure. The Guardian Gateway is rated IP23 for indoor installation, ensuring appropriate protection where it is installed.

The Fortress company ensures all products meet strict codes and utility requirements. The Envy inverter is certified to UL1741SB and IEEE 1547 standards. The eVault MAX battery carries certifications UL9540, UL1973, and UL9540A, with UN38.3 shipping classification. This certification package guarantees both safety and quality while complying with regulatory requirements.

Key specs of the Fortress Envy 12 kW + eVault MAX system

Inverter Output 12 kW continuous power; 120/240 V split-phase output (10.4 kW at 120/208 V); transfer time under 20 ms
PV Input Supports up to 21,000 watts across three Maximum Power Point Trackers (MPPTs) arranged in 2/1/1 strings
Battery Capacity Nominal capacity of 18.5 kWh (rated at 18.43 kWh at 0.5C); voltage 51.2 V with 360 Ah current
Enclosures Envy inverter: NEMA 4X/IP65 • eVault MAX: IP55 aluminum • Guardian Gateway: IP23 for indoor use
Certifications Envy: UL1741, UL1741SB, IEEE 1547A • eVault MAX: UL9540, UL1973, UL9540A; UN38.3 shipping
Dimensions (largest enclosure) eVault MAX: 20.3 W × 20.3 D × 42.2 H inches
Approx. Combined Weight About 648 pounds total (Envy 127 lb + eVault 520 lb + Guardian 0.8 lb)

All specifications are sourced from Fortress Power datasheets and manuals published by Fortress Investment Group. It is essential to size conductors and overcurrent protection devices properly. Provide necessary clearances and commission installations per manufacturer manuals and local codes. This fortress investment ensures you receive top-tier product quality and excellent service. Choosing this fortress company’s energy solutions is a reliable and advanced investment in your energy independence and sustainability.

Customer Reviews

Be the first to write a review
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(0)
0%
(0)
0%
(0)
0%
(0)
0%
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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 Envy 12 kW + eVault MAX 18.5 kWh + Guardian Gateway

SKU/MPN: Envy12KW-Evault-BMG • Application: Whole-home backup / grid-tied with storage • Chemistry: LiFePO4 (48 V) • Designed and engineered by Fortress, a leading innovator in energy solutions.

This carefully crafted product bundle from Fortress offers a complete hybrid energy solution for residential and light commercial use. It is designed to deliver reliable power storage and usage flexibility. The Fortress Envy 12 kW inverter combined with the eVault MAX battery creates a robust system that supports both backup and grid-tied setups. The Guardian Gateway adds an intelligent layer of monitoring and control, ensuring optimal performance.

What’s included in this Fortress Bundle

  • 1× Envy True 12 kW Hybrid Inverter — This inverter features 200 A AC passthrough and has three MPPTs capable of handling up to 21 kW of PV input. It supports both AC and DC coupling, allowing integration with new or existing solar panels. It also includes a generator input for added backup flexibility. The enclosure is rated NEMA 4X/IP65, making it suitable for outdoor use. (Dimensions: 34.2 × 20.5 × 11.2 in; Weight: 127 lb). [Datasheet / Manual]
  • 1× eVault MAX 18.5 kWh Battery — A high-capacity 51.2 V, 360 Ah lithium iron phosphate (LiFePO4) battery with integrated Battery Management System (BMS) and touchscreen display. The battery is protected by an IP55-rated aluminum enclosure. The large form factor ensures significant energy storage capability. Dimensions: 20.3 × 20.3 × 42.2 in; Weight: 520 lb. [Datasheet / Install Manual]
  • 1× Guardian Gateway — This gateway device provides battery-level monitoring including state of charge, voltage, current, and temperature. It supports remote firmware updates through its app interface. The device is designed for indoor use with an IP23 rating. (Dimensions: 7.25 × 6 × 1.25 in; Weight: 0.8 lb). [Datasheet]

Why choose this Fortress bundle

The Fortress bundle stands out for its flexibility and reliability in integrating energy systems. It adapts seamlessly to new or existing photovoltaic (PV) arrays using either AC or DC coupling. The fast transfer time improves power continuity during outages. The generator input makes the system generator-ready, increasing its backup capabilities.

Fortress has engineered a closed-loop integration feature in the system. This includes CAN/RS-485 communication between the Envy inverter and Fortress batteries. It allows smart charging and ensures performance and warranty compliance optimization. This cooperation between components enhances system stability and lifespan.

The hardware is also built for outdoor durability. The Envy inverter enclosure meets NEMA 4X/IP65 standards, making it weather-resistant and reliable in various environments. The eVault MAX battery uses a robust IP55 aluminum enclosure. The Guardian Gateway is rated IP23 for indoor installation, ensuring appropriate protection where it is installed.

The Fortress company ensures all products meet strict codes and utility requirements. The Envy inverter is certified to UL1741SB and IEEE 1547 standards. The eVault MAX battery carries certifications UL9540, UL1973, and UL9540A, with UN38.3 shipping classification. This certification package guarantees both safety and quality while complying with regulatory requirements.

Key specs of the Fortress Envy 12 kW + eVault MAX system

Inverter Output 12 kW continuous power; 120/240 V split-phase output (10.4 kW at 120/208 V); transfer time under 20 ms
PV Input Supports up to 21,000 watts across three Maximum Power Point Trackers (MPPTs) arranged in 2/1/1 strings
Battery Capacity Nominal capacity of 18.5 kWh (rated at 18.43 kWh at 0.5C); voltage 51.2 V with 360 Ah current
Enclosures Envy inverter: NEMA 4X/IP65 • eVault MAX: IP55 aluminum • Guardian Gateway: IP23 for indoor use
Certifications Envy: UL1741, UL1741SB, IEEE 1547A • eVault MAX: UL9540, UL1973, UL9540A; UN38.3 shipping
Dimensions (largest enclosure) eVault MAX: 20.3 W × 20.3 D × 42.2 H inches
Approx. Combined Weight About 648 pounds total (Envy 127 lb + eVault 520 lb + Guardian 0.8 lb)

All specifications are sourced from Fortress Power datasheets and manuals published by Fortress Investment Group. It is essential to size conductors and overcurrent protection devices properly. Provide necessary clearances and commission installations per manufacturer manuals and local codes. This fortress investment ensures you receive top-tier product quality and excellent service. Choosing this fortress company’s energy solutions is a reliable and advanced investment in your energy independence and sustainability.
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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.

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.

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Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Be Smart, Buy From an Authorized Dealer

When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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