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Fortress Power Envy 8kW/ 10kW Inverter

SKU Envy Inverter 8 KW
Save $1,547.70 Save $696.00
Original price $5,295.00
Original price $5,295.00 - Original price $6,706.70
Original price $5,295.00
Current price $4,599.00
$4,599.00 - $5,159.00
Current price $4,599.00
Availability:
in stock, ready to be shipped
Availability:
in stock, ready to be shipped
Power: 8kW
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Free Shippingon Orders $200+ Ship Within2-3 Business Days Manufacturers Warranty Included Price Match Guarantee

This Item is Currently on Backorder

Units are allocated on a first-come, first-served basis. Reserve the next available one for you with a pre-order. No ETA yet


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Learn more about the

Fortress Power Envy 8kW/ 10kW 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 And AC/DC Combined Coupling
  • Built-In Generator Input
  • 10 Units In Parallel
  • Local And Remote Monitoring/App
  • Color LCD Touch Screen.
  • Batch Settings

Supported Applications:

  • Backup
  • Off-Grid
  • Zero Export
  • Time-Of-Use
  • Virtual Power Plant
  • Peak Shaving
  • Net Metering
  • Smart Load
  • Microgrid

Whole-Home Backup One-Line Diagram

Whole-Home Backup One-Line Diagram

Envy 8kW Envy 10kW
Input DC (PV Side)    
Max. DC Input Power for Single MPPT 6000W / 6000 W 6000W / 6000 W
Max. PV Input Power 13000W 15000W
Max. PV Power Delivered to Battery & AC Outputs 12000W 12000W
DC Input Voltage Range 100V-600V 100V-600V
Nominal DC Input Voltage 360V 360V
Full Power MPPT Voltage Range 170V-500V 210V – 500V
Max. DC Input Current 25A / 25A 25A / 25A
MPPT Number/(Strings per MPPT) 2 / 2 2 / 2
Output/Input AC (Grid)    
Continuous AC Power to Grid 8000W (240V) 10000W (240V)
Continuous AC Power to Load with Grid or Generator 14,400W (240V) AC Passthrough/ 12000W (240) GEN 14,400W (240V) AC Passthrough/ 12000W GEN
Nominal Output Voltage 120V/240V 120V/240V
Max. Continuous AC Current 33.3A @ 240V 41.6A @ 240V
Nominal AC Frequency 50Hz/60Hz 50Hz/60Hz
Output AC (Off-Grid)    
Max. Output Power 8000W 10000W
Nominal Output Voltage 120V/240V 120V/240V
Nominal Output Frequency 50Hz/60Hz 50Hz/60Hz
Nominal Output Current 33.3A @ 240V 41.6A @ 240V
Peak Power 16kW / 500ms 20kW / 500ms
Switching Time Seamless Seamless
Dedicated Auto-start Generator Port 50A / 12kW 50A / 12kW
Battery Parameters    
Compatible Battery Type eVault Max, eFlex, LFP-10 MAX eVault Max, eFlex, LFP-10 MAX
Nominal Battery Voltage 48V 48V
Battery Voltage Range 48V-56V 48V-56V
Maximum Charging/Discharging Current 167A 210A
Maximum Charging/Discharging Power 8000W 10000W
Efficiency    
MPPT Efficiency 99.9% 99.9%
Max. Efficiency 97.5% 97.5%
CEC Efficiency 96.5% 96.5%
Protection    
Anti-islanding Protection YES YES
DC Switch YES YES
Ingress Protect Degree NEMA 4X, IP65 NEMA 4X, IP65
SPD Protection YES YES
AFCI YES YES
RSD Built-in APsmart Transmitter Built-in APsmart Transmitter
General Data    
Dimensions 580 x 490 x 265mm (22.8 x 19.3 x 10.4 in) 580 x 490 x 265mm (22.8 x 19.3 x 10.4 in)
Weight 44kg (97lbs) 44kg (97lbs)
Display Color LCD Color LCD
Ambient Temperature Range -25 to 60 °C (-13 to 140 °F) -25 to 60 °C (-13 to 140 °F)
Cooling FAN FAN
Communication RS485/Wi-Fi/CAN RS485/Wi-Fi/CAN
Standard & Certification    
Certifications UL1741, UL1741SB, IEEE1547A, rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM UL1741, UL1741SB, IEEE1547A, rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM
Warranty 10 Years / Lead Acid or Fortress Lithium Batteries, other 48v battery manufacturers** 10 Years / Lead Acid or Fortress Lithium Batteries, other 48v battery manufacturers**
** BATTERIES TO BE CONFIGURED IN OPEN-LOOP COMMUNICATION

FREE & FAST SHIPPING SAVE Hundreds Today with Free Shipping on All Orders. We Ship to ALL 48 Lower States (We do not ship to Puerto Rico, Hawaii, Alaska)

Lead Time - 3-7 Business Days Depending on Product
 - Once You Place an Order, We immediately begin processing, the order request is sent to our warehouse and is prepared for pickup, it then usually takes around 3-7 business days to be picked up for transit.

Transit Time
 - Transit Time can vary depending on the distance between your location and the warehouse but you can expect the item to arrive between 3-8 business days after pickup.

Our Shipping Partners: FedEx, UPS, Freight Club (among others)

Shipping Partners
We partner with the most reliable freight companies in the USA to ensure your order arrives safe and in a timely manner.

Your Item will ship from warehouses all across the United States to ensure fast and efficient delivery times for our customers.

If there are any delays regarding your product shipment, we will let you know in advance. 

Order Confirmation:

As soon as you place your order, you will receive an order confirmation e-mail. (please allow a few hours for this to come through in some cases) This means that we have received your order in our system and pre-authorized your credit card for the purchase. 

As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment. 

If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

Order Shipment:

If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at contact@topture.com

No Shipping outside the USA. (Some exceptions apply - if the website permits you to check out and enter your shipping address, you will receive your order. Some products in particular are available in Canada).

Shipping Options

Our base "Curb-side" Pickup shipping is always completely free! This option usually takes between 5-15 days to arrive at your doorstep, after you have submitted your order.

Threshold Shipping: This involves the item being brought onto your porch, or into a sheltered/garage area. 

Double-Check Your Address

To ensure that your package is properly delivered and that you receive your package within the time frames we advertise, please make sure that your address is correctly entered and includes all relevant and/or required information. The use of correct
abbreviations, street numbers, building or apartment numbers, and route information (if applicable) is critical for ensuring timely delivery. 
We do not take responsibility for lost, misplaced, or incorrectly delivered shipments if the address information provided is incorrect or incorrectly entered at the time of purchase or not reachable by an 18-wheeler for heavy items without making an indication of that at the point of purchase.

Damages

Please inspect the packaging of your item(s) when they arrive, if you notice any damage, you should make note of it when signing for delivery.  If your item(s) do arrived damaged please send photos of damage, box and SKU, along with a brief description of the damage to contact@topture.com and we will process an insurance claim on your behalf. Photos and videos must be sent for freight damage within 24 hours of arrival or the freight damage claim will not be valid. Any punctures, or visible signs of exterior damage must be reported within 24 hours.

11 Reasons to Choose Topture

1. Free Shipping: Enjoy complimentary standard shipping on 98% of our items, ensuring a hassle-free shopping experience without any hidden costs or surprises as you finalize your purchase. Should any shipping charges apply, they are clearly indicated on the product page for complete transparency and peace of mind.

2. No Sales Tax: The price listed on our website is what you pay, making your shopping experience hassle-free and more affordable.

3. Lowest Price Guarantee: Find a lower price online? We’ll match it! Just email us. Valid on all products, anytime. Shop with confidence at Topture!

4. Dedicated Customer Support: Our team of specialists are available to
assist you via phone, email, or live chat. We are here to provide clear information, support and guidance at every step of your shopping experience.

5. Manufacturer's Warranty: As authorized dealers for all our brands, you can rest assured that you'll receive the full manufacturer's warranty on all products you purchase from us.

6. Fast Order Handling: We usually dispatch orders within 2 business days and provide email confirmations with tracking IDs when your order is shipped.

7. Secure Payments: We use high-standard SSL encryption on all our pages, content, and data
to ensure a safe and secure shopping experience.

8. Hassle-Free Shopping Journey: From selecting the right products to ensuring their safe delivery and setup, we are with you every step of the way.

9. Best Price Guarantee: We always strive to offer you the best personal price possible. Just reach out and we'll be glad to assist!

10. No-Hassle Returns & Fully Insured Shipping: Every shipment is fully covered in case of a lost item or damage. Please refer to the Shipping & Returns tab to learn more about our policy.

11. 100% Safe and Secure Online Shopping: With SSL encryption technology, we guarantee 100% secure transactions. If you prefer to process an order over the phone, just call us at (833) 419-1774.

Still have questions? Feel free to chat with us or call (833) 419-1774 to immediately speak with a team member. We're always here to help!

Frequently Asked Questions

Where do you deliver to?

We offer free Curbside Delivery to all 48 lower states and for some products even Canada.

Do you ship internationally?

International Shipping

Yes, we offer international shipping for many of our products. Customers outside the US can request a personalized shipping quote by contacting us. Please be aware that any applicable taxes or customs fees will be the responsibility of the customer. Note that some items may be subject to shipping restrictions.

Shipping to Hawaii, Alaska, and Puerto Rico

We ship to Hawaii, Alaska, and Puerto Rico, although most items are subject to additional shipping fees. To obtain specific rates and prevent any restocking fees, please email us at contact@topture.com.

How long will it take for my items to arrive?

If your order is in stock, the following times apply:

Lead Time - 3-7 Business Days Depending on Product - Once You Place an Order, We immediately begin processing, the order request is sent to our warehouse and is prepared for pickup, it then usually takes around 3-7 business days to be picked up for transit.

Transit Time - Transit Time can vary depending on the distance between your location and the warehouse but you can expect the item to arrive between 3-8 business days after pickup.

For Pre-Order items you can find the expected back in stock date on the product page

Is there a warranty?

Yes, all products come with a manufacturer warranty.

Do you have a showroom?

We don’t have a showroom, which means we can bring you the lowest prices as we don’t need to worry about any extra costs!

Do you offer a price-matching service?

Yes, we do. To request a price match, email us a link to where you've found the lower price, including their shipping and tax.

More questions? See our full FAQ

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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 And AC/DC Combined Coupling
  • Built-In Generator Input
  • 10 Units In Parallel
  • Local And Remote Monitoring/App
  • Color LCD Touch Screen.
  • Batch Settings

Supported Applications:

  • Backup
  • Off-Grid
  • Zero Export
  • Time-Of-Use
  • Virtual Power Plant
  • Peak Shaving
  • Net Metering
  • Smart Load
  • Microgrid

Whole-Home Backup One-Line Diagram

Whole-Home Backup One-Line Diagram

Envy 8kW Envy 10kW
Input DC (PV Side)    
Max. DC Input Power for Single MPPT 6000W / 6000 W 6000W / 6000 W
Max. PV Input Power 13000W 15000W
Max. PV Power Delivered to Battery & AC Outputs 12000W 12000W
DC Input Voltage Range 100V-600V 100V-600V
Nominal DC Input Voltage 360V 360V
Full Power MPPT Voltage Range 170V-500V 210V – 500V
Max. DC Input Current 25A / 25A 25A / 25A
MPPT Number/(Strings per MPPT) 2 / 2 2 / 2
Output/Input AC (Grid)    
Continuous AC Power to Grid 8000W (240V) 10000W (240V)
Continuous AC Power to Load with Grid or Generator 14,400W (240V) AC Passthrough/ 12000W (240) GEN 14,400W (240V) AC Passthrough/ 12000W GEN
Nominal Output Voltage 120V/240V 120V/240V
Max. Continuous AC Current 33.3A @ 240V 41.6A @ 240V
Nominal AC Frequency 50Hz/60Hz 50Hz/60Hz
Output AC (Off-Grid)    
Max. Output Power 8000W 10000W
Nominal Output Voltage 120V/240V 120V/240V
Nominal Output Frequency 50Hz/60Hz 50Hz/60Hz
Nominal Output Current 33.3A @ 240V 41.6A @ 240V
Peak Power 16kW / 500ms 20kW / 500ms
Switching Time Seamless Seamless
Dedicated Auto-start Generator Port 50A / 12kW 50A / 12kW
Battery Parameters    
Compatible Battery Type eVault Max, eFlex, LFP-10 MAX eVault Max, eFlex, LFP-10 MAX
Nominal Battery Voltage 48V 48V
Battery Voltage Range 48V-56V 48V-56V
Maximum Charging/Discharging Current 167A 210A
Maximum Charging/Discharging Power 8000W 10000W
Efficiency    
MPPT Efficiency 99.9% 99.9%
Max. Efficiency 97.5% 97.5%
CEC Efficiency 96.5% 96.5%
Protection    
Anti-islanding Protection YES YES
DC Switch YES YES
Ingress Protect Degree NEMA 4X, IP65 NEMA 4X, IP65
SPD Protection YES YES
AFCI YES YES
RSD Built-in APsmart Transmitter Built-in APsmart Transmitter
General Data    
Dimensions 580 x 490 x 265mm (22.8 x 19.3 x 10.4 in) 580 x 490 x 265mm (22.8 x 19.3 x 10.4 in)
Weight 44kg (97lbs) 44kg (97lbs)
Display Color LCD Color LCD
Ambient Temperature Range -25 to 60 °C (-13 to 140 °F) -25 to 60 °C (-13 to 140 °F)
Cooling FAN FAN
Communication RS485/Wi-Fi/CAN RS485/Wi-Fi/CAN
Standard & Certification    
Certifications UL1741, UL1741SB, IEEE1547A, rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM UL1741, UL1741SB, IEEE1547A, rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM
Warranty 10 Years / Lead Acid or Fortress Lithium Batteries, other 48v battery manufacturers** 10 Years / Lead Acid or Fortress Lithium Batteries, other 48v battery manufacturers**
** BATTERIES TO BE CONFIGURED IN OPEN-LOOP COMMUNICATION

FREE & FAST SHIPPING SAVE Hundreds Today with Free Shipping on All Orders. We Ship to ALL 48 Lower States (We do not ship to Puerto Rico, Hawaii, Alaska)

Lead Time - 3-7 Business Days Depending on Product
 - Once You Place an Order, We immediately begin processing, the order request is sent to our warehouse and is prepared for pickup, it then usually takes around 3-7 business days to be picked up for transit.

Transit Time
 - Transit Time can vary depending on the distance between your location and the warehouse but you can expect the item to arrive between 3-8 business days after pickup.

Our Shipping Partners: FedEx, UPS, Freight Club (among others)

Shipping Partners
We partner with the most reliable freight companies in the USA to ensure your order arrives safe and in a timely manner.

Your Item will ship from warehouses all across the United States to ensure fast and efficient delivery times for our customers.

If there are any delays regarding your product shipment, we will let you know in advance. 

Order Confirmation:

As soon as you place your order, you will receive an order confirmation e-mail. (please allow a few hours for this to come through in some cases) This means that we have received your order in our system and pre-authorized your credit card for the purchase. 

As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment. 

If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

Order Shipment:

If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at contact@topture.com

No Shipping outside the USA. (Some exceptions apply - if the website permits you to check out and enter your shipping address, you will receive your order. Some products in particular are available in Canada).

Shipping Options

Our base "Curb-side" Pickup shipping is always completely free! This option usually takes between 5-15 days to arrive at your doorstep, after you have submitted your order.

Threshold Shipping: This involves the item being brought onto your porch, or into a sheltered/garage area. 

Double-Check Your Address

To ensure that your package is properly delivered and that you receive your package within the time frames we advertise, please make sure that your address is correctly entered and includes all relevant and/or required information. The use of correct
abbreviations, street numbers, building or apartment numbers, and route information (if applicable) is critical for ensuring timely delivery. 
We do not take responsibility for lost, misplaced, or incorrectly delivered shipments if the address information provided is incorrect or incorrectly entered at the time of purchase or not reachable by an 18-wheeler for heavy items without making an indication of that at the point of purchase.

Damages

Please inspect the packaging of your item(s) when they arrive, if you notice any damage, you should make note of it when signing for delivery.  If your item(s) do arrived damaged please send photos of damage, box and SKU, along with a brief description of the damage to contact@topture.com and we will process an insurance claim on your behalf. Photos and videos must be sent for freight damage within 24 hours of arrival or the freight damage claim will not be valid. Any punctures, or visible signs of exterior damage must be reported within 24 hours.

11 Reasons to Choose Topture

1. Free Shipping: Enjoy complimentary standard shipping on 98% of our items, ensuring a hassle-free shopping experience without any hidden costs or surprises as you finalize your purchase. Should any shipping charges apply, they are clearly indicated on the product page for complete transparency and peace of mind.

2. No Sales Tax: The price listed on our website is what you pay, making your shopping experience hassle-free and more affordable.

3. Lowest Price Guarantee: Find a lower price online? We’ll match it! Just email us. Valid on all products, anytime. Shop with confidence at Topture!

4. Dedicated Customer Support: Our team of specialists are available to
assist you via phone, email, or live chat. We are here to provide clear information, support and guidance at every step of your shopping experience.

5. Manufacturer's Warranty: As authorized dealers for all our brands, you can rest assured that you'll receive the full manufacturer's warranty on all products you purchase from us.

6. Fast Order Handling: We usually dispatch orders within 2 business days and provide email confirmations with tracking IDs when your order is shipped.

7. Secure Payments: We use high-standard SSL encryption on all our pages, content, and data
to ensure a safe and secure shopping experience.

8. Hassle-Free Shopping Journey: From selecting the right products to ensuring their safe delivery and setup, we are with you every step of the way.

9. Best Price Guarantee: We always strive to offer you the best personal price possible. Just reach out and we'll be glad to assist!

10. No-Hassle Returns & Fully Insured Shipping: Every shipment is fully covered in case of a lost item or damage. Please refer to the Shipping & Returns tab to learn more about our policy.

11. 100% Safe and Secure Online Shopping: With SSL encryption technology, we guarantee 100% secure transactions. If you prefer to process an order over the phone, just call us at (833) 419-1774.

Still have questions? Feel free to chat with us or call (833) 419-1774 to immediately speak with a team member. We're always here to help!