Fortress Power Hybrid Power Kit | 12kW 120/240 Output 48VDC - 28.8kWh System Bundle | Envy12 Hybrid Inverter + eForce 28.8kWh Stackable Lithium Battery | Guardian Battery Monitor
Description
This Fortress Power indoor bundle includes (1) 12kW Envy12 Hybrid Inverter, (1) eForce 28.8kWh Stackable Lithium Iron Phosphate (LiFePO4) Battery, and (1) Guardian Battery Monitor. Designed for high-performance and long-lasting reliability, this robust system ensures an uninterrupted power supply for medium to large homes or businesses. With its advanced technology and impressive energy storage capacity, it offers reliable protection against power outages and blackouts, delivering a seamless and efficient energy solution for all your needs.
Envy 12: The Fortress Power Envy True 12 kW – a whole-home, all-in-one 12kW 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 200A AC passthrough providing up to 12kW (50A @ 240V) or 10.4kW (50A @208V) of whole-home backup power or small commercial. The Envy features a built-in generator input with AC/DC coupling, on- and off-grid capabilities, plus a 3 MPPT output allowing for a maximum of 21 kW PV array. The Envy is equipped with a built-in APsmart Module Level Rapid Shutdown Transmitter and Button, along with Pre-built AC & DC breakers allowing for fast installation and commissioning. Use our online monitoring app to access your system from anywhere.
eForce: The Fortress Power eForce 9.6 kWh Lithium Iron Phosphate (LFP) battery is a modular energy storage solution designed for durability and efficiency. Each unit offers 9.6 kWh of energy capacity and features a built-in temperature sensor-controlled heating system, ensuring optimal performance across various weather conditions.
Guardian Battery Monitor: The Fortress Power Guardian is a gateway device that connects Fortress Power Batteries to the cloud. Paired with the companion app, the Guardian will automatically discover connected Fortress Power batteries. This enables battery-level monitoring of key values such as State of Charge, Voltage, Current and Battery Temperature as well as faster, more accurate technical support. Remotely update battery firmware, submit support tickets, chat live with technical support, complete warranty submissions, and securely share installation and monitoring data directly with support engineers-right from the companion app.
Product Specifications
Fortress Power Envy 12kW All-In-One Split Phase Hybrid Inverter | 120/240VAC | 48VDC Product Specifications
| Input DC (PV Side) |
| Max. DC Input Power for Single MPPT |
12000W/7000W/7000W 1 x 12kW, 2 x 7kW |
| Max. PV Input Power |
21000W |
| Max. PV Power Delivered to Battery & AC Outputs |
18000W |
| DC Input Voltage Range |
100V-600V |
| Nominal DC Input Voltage |
360V |
| Full Power MPPT Voltage Range |
230V-500V |
| Max. DC Input Current |
25A/15A/15A |
| MPPT Number/(Strings per MPPT) |
3(2/1/1) |
| Output/Input AC (Grid) |
| Continuous AC Power to Grid |
12000W (240V) |
| Continuous AC Power to Load with Grid or Generator |
48000W (240V) |
| Nominal Output Voltage |
120/240V Single Split Phase, 120/208V Single Split Phase, 120/208V Three Phase |
| Max. Continuous AC Current |
50A @ 240V |
| Nominal AC Frequency |
50Hz/60Hz |
| Output AC (Off-Grid) |
| Max. Output Power |
12000W (240V) |
| Nominal Output Voltage |
120/240, Single Split Phase, 120/208V Single Split Phase, 120/208V Three Phase |
| Nominal Output Frequency |
50Hz/60hZ |
| Nominal Output Current |
50A @ 240V / 50A @208V
|
| Peak Power |
14kW 10 minutes / 16kW 5 minutes / 20kW 500ms |
| Switching Time |
Seamless
|
| Battery Parameters |
| Compatible Battery Type |
Lithium and Lead acid batteries |
| Nominal Battery Voltage |
48V |
| Battery Voltage Range |
48V-56V |
| Maximum Charging/Discharging Current |
250A |
| Maximum Charging/Discharging Power |
12000W |
| Efficiency |
| MPPT Efficiency |
99.9% |
| Max. Efficiency |
97.5% |
| CEC Efficiency |
96.5% |
| Protection |
| Anti-islanding Protection |
YES |
| DC Switch |
YES |
| Ingress Protect Degree |
NEMA 4X, IP65 |
| SPD Protection |
YES |
| AFCI |
OPT |
| RSD |
Built-in APsmart Transmitter |
| General Data |
| Dimensions |
31.1 x 20.5 x 10.4 in (790 x 520 x 264 mm) |
| Weight |
127 lbs (58 kg) |
| Display |
Color LCD |
| Ambient Temperature Range |
-20 to 60 °C (-4 to 140 °F) |
| Cooling |
FAN |
| Communication |
RS485/Wi-Fi/CAN |
| Standard & Certification |
| Certifications |
UL1741, UL1741SB, IEEE1547A, Rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM |
| Warranty |
10 Years |
Fortress Power eForce 19.2kWh Stackable Lithium Iron Phosphate Battery (400Ah) Product Specifications
| 9.6 kWh |
19.2 kWh vertical |
19.2 kWh horizontal |
28.8 kWh vertical |
28.8 kWh horizontal |
| Battery Parameters |
|
|
|
|
|
| Maximum Units In Parallel |
16 |
8/16 |
5/16 |
| Cell Type |
Tier-1 Prismatic 15 Cell LF |
|
|
|
|
| Nominal Capacity |
200Ah |
2*200Ah |
3*200Ah |
| Nominal Energy |
9.6KWh |
19.2KWh |
28.8KWh |
| Operating Voltage Range |
39~54V |
39~54V |
39~54V |
| Nominal Charge/Discharge (A) |
120/160 |
240/250 |
240/320 |
250/250 |
360/480 |
| Open Loop Charge/Discharge (A) |
100/100 |
100/100 |
200/200 |
100/100 |
300/300 |
| Bulk Absorption Charge (V) |
51.5V |
| Open Loop/Closed Loop (V) |
51.5V |
| Max Charge/Discharge (A) |
195/195 |
250/250 |
390/390 |
250/250 |
585/585 |
| Surge Discharge Power W (10s) |
14,400 |
14,400 |
28,800 |
14,400 |
43,200 |
| Cycle Life @ EOL 70% |
8000 |
| General Data |
|
|
|
|
|
| Ambient Temperature Range |
-4-140°F (-20-60°C) |
| Ingress Protect Degree |
IP65 |
| Communication |
RS485/Wi-Fi/CAN |
| Weight |
249 Ibs (112.9 kg) |
465 Ibs (210.9 kg) |
681 Ibs (308.9 kg) |
| Dimension (W*D*H) (mm) |
24.4x9.4x33.5 in
(620x240x851 mm) |
24.4x9.4x53.1 in
(620x240x1351 mm) |
24.4x9.4x72.9 in
(620x240x1851 mm) |
| Warranty |
10 years |
| Standard & Certification |
|
|
|
|
|
| Safety Standard |
UL1741, UL1973, UL9540/A DC ESS |
| EMC |
IEEE1547, FCC, SDOC |
| Grid Standards |
IEEE1547 |
| Transportation |
UN38.3 |
Fortress Power Guardian Battery Monitor Product Specifications
| Feature |
Specification |
| Power Consumption |
5W – 24V @ 1A power supply |
| AC/DC Adapter |
120V / 5A, 24V DC, 5.5mm connector |
| Supported Communication Types |
1x MODBUS/TCP, 2x MODBUS/RTU, 2x CAN 2.0 |
| Operation Frequency |
2.4 GHz |
| Weight (Device Only) |
0.8 lbs (0.4 kg) |
| Dimensions (Device Only) |
7.25" x 6" x 1.25" (WxHxD) |
| Shipping Package Dimensions |
14" x 8.5" x 2" (WxHxD) |
| Shipping Package Weight |
2 lbs |
| Housing |
IP23 |
| Mounting System |
DIN Rail Mount |
| Status Display LEDs |
Power, Cloud connection, Bluetooth/Wi-Fi connection, Serial communication with battery, Error signal (from top to bottom) |
Product Manual
Envy 12 Product Manual
Envy True 12 kW Inverter – Data Sheet
Envy True 12 kW Inverter – Manual
Fortress Power System Design Tool
OGPe Certification
NOM Certification
ENVY 12KW UL1741 SB 3RD Ed. ATM
ENVY-eVault Max UL9540 3RD Ed.
eForce Product Manual
eForce Battery – Datasheet
eForce Battery – Installation Manual
eForce Battery – Wall-Mount Installation Manual
Guardian Product Manual
Fortress Power Guardian Product Manual
Product Warranty
Envy True 12 kW Inverter – Warranty Letter
Fortress Power Warranty – Envy 8k (CDBG)
Fortress Power Warranty – Envy 8k / 10k
eForce Battery – 10 Year Warranty
Product FAQs
Fortress Power Product FAQs
1) Does energy storage work well with my solar system?
Yes. On the grid? Absolutely! Energy storage adds a lot of value to your solar systems. It keeps your solar system operating when your utility service is interrupted. Without energy storage, your PV system will be forced to shutdown when the grid is off.
If you live off grid, energy storage enables you to use the clean solar energy to power your home day and night.
Fortress Power also knows you’re a fan of conservation—energy storage saves both your surplus solar energy and your cash since it reduces on grid energy dependence.
2) Can I use energy storage without solar panels?
Absolutely. For on grid clients, a home energy storage unit stores energy from your electricity provider. If an outage occurs, home energy storage can provide up to 24 hours of potentially life-saving power. Need more reassurance? Fortress Power offers batteries with larger storage capabilities, completely customizable to your needs. And, like you, we appreciate saving money. When electricity is at its lowest daily rate, our smart energy storage units use that period to charge. When peak electric use occurs, our energy storage units can discharge power to suit your lifestyle.
3) What about power outage protection?
Power interruptions shouldn’t disrupt your schedule. An energy storage system will keep your solar system operating during grid outages. When paired with solar panels, an energy storage system supplies unlimited energy delivery. The solar panels power your home during the day and use any excess power to charge the battery. At night, the system keeps your space bright. When used without solar panels, power outage support is dependent on battery size and your energy use. Batteries providing at least 12 hours of backup power are safest.
4) Are home energy storage systems financially beneficial?
You can use the energy storage to shelve your peak usage. When electricity is at its lowest daily rate, our smart energy storage uses that period to charge. During the peak periods, our energy storage system can power your home, reducing your electricity bill. Clients with solar panel installations enjoy a faster return on investment.
5) Do I receive incentives on my energy storage system?
If your energy storage is powered by solar panels, you are eligible for 30% federal tax credit. Many states and utilities provide rebates for homes and businesses with energy storage systems, aiming for grid resilience.
We provide a 10 year product warranty and guarantee up-to 8000 cycles, whichever comes first. Speak to our representatives for details.
We use Lithium Iron Phosphate (LiFePo4; Lithium Ferro Phosphate) technology – the safest lithium technology in the industry. It’s environmentally friendly and can be fully recycled. While Many other competitors, such as LG Chem, Tesla and Panasonic use cobalt-based Lithium-Ion battery, which has a very poor thermal stability. Any short circuit or cell-breakage can cause thermal runaway and catch fire.
And comparatively, Lithium Iron Phosphate battery deliver substantially higher amount of life cycles. We guarantee up-to 6000 cycles, while LG Chem, Tesla and Panasonic provide less than 3000 cycles.
8) Are Fortress Lithium batteries widely compatible?
Yes, our batteries are designed to work with all 48V chargers and hybrid inverters. We work well with Schneider, Outback, Magnum, Sol-Ark, Victron, Morningstar and so on. Please Check out our Inverter Compatibility list.
9) Are permits required for installation?
Legal requirements vary by location. Fortress Power’s technical support team will help you on obtaining permits.
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