Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: ShopSolar's image for the "1 Envy Duo 21 Hybrid Inverter + 2 eBoost 16kWh Batteries" option (SKU FP-1EnvyDuo-2EBoost) of its "Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65" listing: the picture its product data assigns to this option. Seller listing image, not a manufacturer-issued photo. Paid link.32 kWh battery
Paid link · price checked
From the seller's published contents list.
| Qty | Part | Type | Product page |
|---|---|---|---|
| ×1 | Fortress Power Envy Duo 21 Hybrid Inverter | Inverter | View product › |
| ×2 | Fortress Power eBoost 16kWh LFP Battery | Battery | View product › |
| ×1 | Fortress Power eWay Conduit Box DetailsThe listing prints "Fortress Power eWay Conduit Box". Distributor product page: ShopSolar listing: Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65 (shopsolarkits.com, October 1, 2026 capture) Paid link.Checked · Earlier document | Enclosure | View product › |
Stock keeping unit ShopSolar prints for this kit option in its listing's product data ("sku":"FP-1EnvyDuo-2EBoost"). The listing does not say whether it is the store's own code or the maker's.
Distributor product page: ShopSolar listing: Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65 (shopsolarkits.com, October 1, 2026 capture) Paid link.Checked · Earlier documentLocation: Embedded product data, variant SKU
Documented
Calculated: 2 x 16 kWh = 32 kWh
Calculated from the count and the unit rating ShopSolar prints together in the name of this kit option, "1 Envy Duo 21 Hybrid Inverter + 2 eBoost 16kWh Batteries" (SKU FP-1EnvyDuo-2EBoost), on its listing "Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65", captured October 1, 2026: 2 eBoost batteries of 16 kWh each; the listing's Specs in a Glance also print "Battery (per unit): 16kWh usable energy (LFP), 48V". The listing title prints "16.1kWh LFP Battery" for the eBoost; the option and specification figure, 16 kWh, is the one recorded. The listing prints no total for this option. Seller statement for its own kit, not a manufacturer document.
Distributor product page: ShopSolar listing: Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65 (shopsolarkits.com, October 1, 2026 capture) Paid link.Checked · Earlier documentLocation: Variant selector, option "1 Envy Duo 21 Hybrid Inverter + 2 eBoost 16kWh Batteries"
Calculated
3 specs not documented yet: rated capacity, usable capacity, dimensionsHelp fill in ›
Published claims and calculations are not independently tested lifetime output.
Calculated: 2 x 16 kWh = 32 kWh
Calculated from the count and the unit rating ShopSolar prints together in the name of this kit option, "1 Envy Duo 21 Hybrid Inverter + 2 eBoost 16kWh Batteries" (SKU FP-1EnvyDuo-2EBoost), on its listing "Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65", captured October 1, 2026: 2 eBoost batteries of 16 kWh each; the listing's Specs in a Glance also print "Battery (per unit): 16kWh usable energy (LFP), 48V". The listing title prints "16.1kWh LFP Battery" for the eBoost; the option and specification figure, 16 kWh, is the one recorded. The listing prints no total for this option. Seller statement for its own kit, not a manufacturer document.
Distributor product page: ShopSolar listing: Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65 (shopsolarkits.com, October 1, 2026 capture) Paid link.Checked · Earlier documentLocation: Variant selector, option "1 Envy Duo 21 Hybrid Inverter + 2 eBoost 16kWh Batteries"
Calculated
The kit option as ShopSolar's listing prints it in its variant selector, under the listing title "Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65", captured October 1, 2026. Seller statement; the parts are listed one by one under included parts.
Distributor product page: ShopSolar listing: Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65 (shopsolarkits.com, October 1, 2026 capture) Paid link.Checked · Earlier documentLocation: Variant selector
Documented
Published claims and calculations, not independent test results.
Archived copy captured on 2026-10-01.
Location: listing title, variant selector, description and the embedded product data
Retrieved
ShopSolar's own product page, captured October 1, 2026. It establishes what this affiliate store lists, its kit options, the SKU, price and availability its product data prints for each option, and the contents it describes. It is a seller statement throughout: not a manufacturer datasheet, and it establishes no manufacturer part number, test condition or certification.
Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65 - 1 Envy Duo 21 Hybrid Inverter + 2 eBoost 16kWh Batteries
No warranty terms on file.
Affiliate links below. Affiliate disclosure
Price for one unit, as listed by the seller. Does not include shipping. Price checked .
The seller lists this as a new unit. Condition checked .
Distributor product page: ShopSolar listing: Fortress Power Envy Duo 21 + eBoost 16 Bundle | 12kW 48V Hybrid Inverter + 16.1kWh LFP Battery | 3 MPPT | NEMA 4X/IP66 + IP65 (shopsolarkits.com, October 1, 2026 capture) Paid link.Checked · Earlier documentPrices we read at ShopSolar · 26 readings from to
Since · Listing price (USD)
A break in a line is a gap in our readings: no price is drawn for days we did not read.
| Checked (UTC) | Seller | Price |
|---|---|---|
| Oct 1, 2026, 11:45 AM PDT | ShopSolar Paid link. | $14,424.55 |
| Oct 4, 2026, 1:06 AM PDT | ShopSolar Paid link. | $14,424.55 |
| Oct 5, 2026, 1:05 AM PDT | ShopSolar Paid link. | $14,424.55 |
| Oct 6, 2026, 1:05 AM PDT | ShopSolar Paid link. | $14,424.55 |
| Oct 8, 2026, 1:06 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 11, 2026, 1:05 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 13, 2026, 1:15 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 16, 2026, 1:06 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 17, 2026, 1:16 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 18, 2026, 1:06 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 20, 2026, 9:17 PM PDT | ShopSolar Paid link. | $13,334 |
| Oct 23, 2026, 3:10 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 24, 2026, 1:06 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 25, 2026, 1:06 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 26, 2026, 1:07 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 27, 2026, 1:07 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 29, 2026, 1:16 AM PDT | ShopSolar Paid link. | $13,334 |
| Oct 30, 2026, 1:26 AM PDT | ShopSolar Paid link. | $13,334 |
| Nov 1, 2026, 1:07 AM PDT | ShopSolar Paid link. | $13,334 |
| Nov 3, 2026, 1:06 AM PST | ShopSolar Paid link. | $13,334 |
| Nov 4, 2026, 3:21 AM PST | ShopSolar Paid link. | $13,334 |
| Nov 5, 2026, 1:06 AM PST | ShopSolar Paid link. | $13,334 |
| Nov 6, 2026, 1:07 AM PST | ShopSolar Paid link. | $13,334 |
| Nov 7, 2026, 1:17 AM PST | ShopSolar Paid link. | $13,334 |
| Nov 8, 2026, 1:16 AM PST | ShopSolar Paid link. | $13,334 |
| Nov 12, 2026, 2:00 AM PST | ShopSolar Paid link. | $13,334 |
No reviews yet
Own one? A verified review needs a receipt and a serial number photo, and counts 19× in the owner rating.
This category has no Evidence score.
No certificates on file. Certificate guide
No sourced accessories or replacement parts listed yet.
Manufacturer SKU FP-1EnvyDuo-2EBoost · US market
No historical observations recorded yet.
No discussions linked yet. Search DIY Solar Forum
No recalls or legal notices on file; this is not a complete recall or court search. All notices · Report a notice
Something wrong that is not one of the values above?
Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.
