FORT professionally designs and builds PowerTanks for peace-of-mind reliability, redundancy, and expandability. We assemble and test every system before it leaves our shop, so you don’t waste thousands of dollars (and weeks/months) trouble-shooting. It’s never been easier or more affordable to get Off-Grid.
Your FORT “PowerTank” is your pre-wired battery bank with inverter that feeds your home’s main electrical breaker panel, so you can power your entire home with the cheapest available energy source 24/7/365 while ALWAYS having redundant backup.
Just like a water tank stores water, so you always have water available — your “PowerTank” stores power, so you always have power available.
Climate-Controlled Industrial Enclosure to protect and cool your most critical components
NEMA3R UL9540-rated with Cooling Fan
for Outdoor installations, easily upgrade to a High-Efficiency Industrial A/C + Heater
lndustry-Leading Low-Voltage (48V) Inverter: Sol-Ark 15K (upgradeable to Sol-Ark 18K)
If you want to install and maintain a “High-Voltage” system in your family’s home, you’ll have to find it elsewhere.
Sol-Ark is the recognized industry leader with the most reliable hybrid inverters, best tech support, and 10-year Manufacturer Warranty. Check the solar forums yourself. I have personally been powering my property with Sol-Ark inverters since 2021.
Grid-ready with 200A grid pass-through
Off-Grid ready with 50A continuous output (upgrade to 75A with Sol-Ark 18K)
Solar-ready up to 19.5 kW (solar panels and array racking sold separately)
240VAC generator-ready with Automatic Transfer Switch (ATS) included (generator sold separately; see recommendations below)
Low-Voltage (48V) Universal Rackmount LiFePO4 Batteries:
10kWh = 2 X 5kWh MidNite Powerflo5 batteries included
upgrade to internally-heated Pytes V5 batteries or to premium internally-heated Discover AES batteries w/LYNK Gateway (10-year Manufacturer Warranty)
easily upgradable to max of 30kWh total with 6 batteries total
DuroMax XP7000iHTPortable 7,000W Tri-Fuel Inverter Generator; Low THD; Quiet
upgrade to 9,500W; 11,000W; and 16,000W Tri-Fuel DuroMax models
The “PowerTank PRO” is the best of the best.
FORT professionally designs and builds PowerTanks for peace-of-mind reliability, redundancy, and future-proof expandability. We assemble and test every system before it leaves our shop, so you don’t waste thousands of dollars (and weeks/months) trouble-shooting. It’s never been easier or more affordable to get Off-Grid.
Your FORT “PowerTank PRO” is your pre-wired battery bank with double inverters that feeds your home’s main electrical breaker panel, so you can power your entire home with the cheapest available energy source 24/7/365 while ALWAYS having redundant backup.
Just like a water tank stores water, so you always have water available — your “PowerTank PRO” stores power, so you always have power available.
Double-Wide Climate-Controlled Industrial Enclosure to protect and cool your most critical components
NEMA3R UL9540-rated with Cooling Fan
for Outdoor installations, easily upgrade to a High-Efficiency Industrial A/C + Heater
lndustry-Leading Low-Voltage (48V) Inverter: 2X Sol-Ark 15K (upgradeable to 2X Sol-Ark 18K)
If you want to install and maintain a “High-Voltage” system in your family’s home, you’ll have to find it elsewhere.
Sol-Ark is the recognized industry leader with the most reliable hybrid inverters, best tech support, and 10-year Manufacturer Warranty. Check the solar forums yourself. I have personally been powering my property with 2 parallel Sol-Ark inverters since 2021.
Grid-ready with 200A grid pass-through
Off-Grid ready with 100A continuous output (upgrade to 150A with 2X Sol-Ark 18K)
Solar-ready up to 39 kW (solar panels and array racking sold separately)
240VAC generator-ready with Automatic Transfer Switch (ATS) included (generator sold separately; see recommendations below)
Low-Voltage (48V) Universal Rackmount LiFePO4 Batteries:
10kWh = 2 X 5kWh MidNite Powerflo5 batteries included
upgrade to internally-heated Pytes V5 batteries or to premium internally-heated Discover AES batteries w/LYNK Gateway (10-year Manufacturer Warranty)
easily upgradable to max of 60kWh total with 12 batteries total
DuroMax XP11000iHTPortable 11,000W Tri-Fuel Inverter Generator; Low THD; Quiet
upgrade to 16,000W Tri-Fuel DuroMax model
100 Amp Alternating Current (A/C) Input-Output Switchgear Panel:
easily installable outdoors by a licensed electrician to integrate any 100A electrical main breaker panel to interface with your PowerTank and generator, and/or solar, and/or grid connection (utility meter)
On- and Off-Grid capable
100A off-the-shelf UL-listed premium components, including.
100A Main A/C Disconnect
50A 240VAC Accessory Outlet (e.g. eV Charger)
30A 240VAC Accessory Outlet (e.g. RV hookup)
20A 110VAC GFCI Accessory Outlet
50A 240VAC Generator Input Plug
100A Manual Transfer Switch for “Service Mode” with 50A 240VAC Bypass Generator Input Plug
Solar Rapid Shutdown transmitter, fuse box, and fuses included
Utility net-metering program-ready
200 Amp Alternating Current (A/C) Input-Output Switchgear Panel:
easily installable outdoors by a licensed electrician to integrate any 200 Amp electrical main breaker panel to interface with your PowerTank and generator, and/or solar, and/or grid connection (utility meter)
On- and Off-Grid capable
200A off-the-shelf UL-listed premium components, including.
200A Main A/C Disconnect
50A 240VAC Accessory Outlet (e.g. eV Charger)
30A 240VAC Accessory Outlet (e.g. RV hookup)
20A 110VAC GFCI Accessory Outlet
50A 240VAC Generator Input Plug
200A Manual Transfer Switch for “Service Mode” with 50A 240VAC Bypass Generator Input Plug
Solar Rapid Shutdown transmitter, fuse box, and fuses included
Utility net-metering program-ready
FORT’S premium, internally-heated battery option is the AES RACKMOUNT 5kWh 48V LiFePO4 battery from Discover Energy Systems. These batteries currently power dozens of PowerTanks installed across the country and have proven they perform reliably, install quickly, and configure easily. It’s not just marketing - these are the best of the best, especially if you desire closed-loop communication. Dramatically elevate battery charging performance in closed-loop communication with industry-leading Sol-Ark 15K and 18K low-voltage hybrid inverters.
• 2x Runtime of lead-acid batteries
• Up to 100% usable capacity
• 10x the life of lead-acid battery (BCI-06)
• 10-Year warranty and energy performance guarantee
• 1C Continuous Charge Rate, regardless of SoC
• 2x faster than C/2 rated lithium batteries
• Up to 2.2C Peak Power
• Up to 1C Charge / Discharge
• Up to 50% more energy efficient than lead-acid batteries
• Up to 98% round-trip efficiency
• Up to 40% faster recharge from 0% to 100% SoC
• Real-time charge rate optimization
• Up to 184 kWh (per LYNK II Gateway)
• Linear scaling of charge, discharge and peak capacity
• Connect battery string to LYNK Gateway
• Multi-battery BMS communication
• Remote ON/OFF capability
• High Peak Surge, Continuous Current
• Sets voltage, broadcasts SoC, temperature, and balances cells
• Integrated self-heating
• Monitor and Troubleshoot
• Configure Communication with Charger
• Export battery data logs
• Update battery firmware
FORT’s affordable internally-heated 5kWh rackmount battery option is Pytes V5.
The Pytes V5 LiFePO4 Battery is a well-designed, high-performance battery with a powerful BMS for added safety. Compact and easy to install, the Pytes V5 is maintenance free and can be wired in parallel to add more storage capacity. Each battery has a nominal voltage of 51.2V and nominal capacity of 100Ah, adding up to 5.12kWh of nominal energy.
With a low-consumption built-in heater that automatically starts in cold temperatures, you can safely charge at below-freezing without damaging the battery. The V5 also has a higher charge and discharge rate of 100A making it compatible with residential, small commercial, and telecommunications systems.
The integrated heating function has a typical operating range of -4°F to 50°F. If the battery temperature falls below 41°F, the heating feature is initiated. Using charging current from the charging source, the heater will raise the battery temperature up to 50°F. The heater consumes up to 180W (per battery) from the charging source and will heat the battery at up to 10°C/hour. Because the heater is powered by the charging source, it does not affect the battery's state of charge (SOC).
If the battery temperature is between 35°F - 41°F (2°C - 5°C) the heater will initiate and the battery will be charged at the same time until the battery reaches a temperature of 50°F (10°C), at which point the heater will turn off and the battery will continue to be charged. If the battery is below <35°F (<2°C), the charging current will only be directed into the heating system until the battery rises above 41°F (5°C), at which point the battery will be charged normally.
Higher Charge & Discharge Rate: Maximum Charge and Disharge Current 100A / fully chargd in hour
Freezing Temperature Charging: The smart heating system allows for charging in freezing temperatures
Long-lasting and Efficient: ≥6000 cycles @90%DOD
Easy Connection: Up to 300A confluence current in parallel
Smart Energy Management: Monitor and optimize energy usage, maximize longevity, remote upgrading
Nominal Voltage: 51.2V
Nominal Capacity: 100Ah
Nominal Energy: 5.12kWh
Chemistry: Lithium Iron Phosphate (LiFePO4)
Maximum continuous charge current: 100A (1C)
Maximum continuous discharge rate: 100A (1C)
Communication Protocol: RS485, CAN
Dimensions (L*W*H): 17.32"x 20.87"x 5.51"
Weight: 97 lbs
FORT’s affordable battery option is the MNPowerFlo5 from MidNite.
MidNite is committed to providing innovative reliable products to the solar industry with ongoing adaptations based on customer demand. The MNPowerflo is truly plug and play - taking things to another level. No dip switches to set. No programming to do, just plug in the communications cable and you are done.
The MidNite Pro app shows you status on the entire system. No more going to different places to get info on the charger, inverter, loads, MPPTs, and battery status. Everything is right there.
Seamless Updates - MidNite Solar will periodically release customer requested feature updates on battery and inverter firmware. This process has historically caused one or the other unit to not work correctly due to incompatibility between batteries and the inverter. Those days are gone with the MNS batteries and the ONE inverter. Updates are seamless and never glitchy as the new features and updates are fully tested before release. One or both components will be updated seamlessly as required. So you can put your mind at ease.
Real time monitoring and control through our web based app allows you to view your system online or view the inverters performance from the built in display.
51.2V Nominal
100Ah capacity
5,120Wh capacity
LiFePO4 Lithium Iron Phosphate
6000 Cycles @ 77F (25C), 0.5C / 0.5C
Communication using Can / RS485 / RS232
Stack up to 16 units
Nominal Discharge Current 75A
Nominal Charge Current 75A
Max Discharge Current 100A
Indoor Type 1 rated, IP20
Operating temperature 32F to 122F (0C to 50C)
Storage temperature 14F to 113F (-10C to 45C)
Max Altitude 9,843 feet (3,000 m)
Natural convection cooling
Rackmount universal form factor
Grade A+ cells from Eve.
Compliance UL 1973,UL 9540A,UL9540
7,000 Watts of Clean Sine Wave Power — Powers Your Home with Ease.
Dual Fuel Technology — Runs on Gasoline or Propane for Ultimate Flexibility.
Quiet, Low THD
Home Backup Ready — Equipped with a 30 Amp Plug for Seamless Use with PowerTanks.
Durable 100% Copper Windings — Built To Last for Years of Reliable Performance.
Parallel Capability — Can Be Paired With Another Inverter (Sold Separately) for Even More Power.
7,000 Watts of Clean Sine Wave Power — Powers Your Home with Ease.
Tri Fuel Technology — Runs on Gasoline, Propane, or Natural Gas for Ultimate Flexibility.
Home Backup Ready — Equipped with a 30 Amp Plug for Seamless Use with PowerTanks.
Quiet, Low THD
Durable 100% Copper Windings — Built To Last for Years of Reliable Performance.
Natural Gas Hookup Made Easy — Includes ½" Natural Gas Hose with Quick-Connect Fittings.
AGM Battery Included — Reliable cold weather performance and longer lifespan between uses.
Parallel Capability — Can Be Paired With Another Inverter (Sold Separately) for Even More Power.
9,500 Watts of Quiet, Clean, Sine Wave Power — Powers your whole home quietly and with ease.
Dual Fuel Technology — Runs on gasoline or propane for ultimate fuel flexibility.
Home Backup Ready — Equipped with a 50 Amp plug for use with PowerTanks.
Quiet, Low THD
AGM Battery Technology – Delivers longer lifespan and enhanced cold-weather performance.
Parallel Capability — Can be paired with another inverter (sold separately) for even more power.
11,000 Watts of Quiet, Clean, Sine Wave Power — Powers your whole home quietly and with ease.
Dual Fuel Technology — Runs on gasoline or propane for ultimate fuel flexibility.
Home Backup Ready — Equipped with a 50 Amp plug for use with PowerTanks.
Quiet, Low THD
AGM Battery Technology – Delivers longer lifespan and enhanced cold-weather performance.
Parallel Capability — Can be paired with another inverter (sold separately) for even more power.
DC Output — Charge 48V/52V battery banks such as FORT PowerTank.
Whole Home Backup Power – Power all your home essentials during an outage, including your AC.
Dual Fuel Capability – Runs on gasoline or propane for excellent flexibility.
Quiet, Low THD
100% Copper Windings – Maximize efficiency and extend the life of your generator for years of reliable power.
AGM Battery Technology – Delivers longer lifespan and enhanced cold-weather performance.
High Performance Output – Built for serious backup with 16,000 peak watts.
5 Year Warranty & USA Based Support – Peace of mind with industry-leading coverage and expert help.
16,000 Watts of Quiet, Clean, Sine Wave Power — Powers your whole home quietly and with ease.
Tri Fuel Technology — Runs on gasoline, propane, or natural gas for ultimate fuel flexibility.
Home Backup Ready — Equipped with two 50 Amp plugs for use with PowerTanks.
100% Copper Windings – Maximize efficiency and extend the life of your generator for years of reliable power.
AGM Battery Technology – Delivers longer lifespan and enhanced cold-weather performance.
Natural Gas Hookup Made Easy — Includes 3/4” natural gas hose with Quick Connect fittings.
Parallel Capability — Can be paired with another inverter (sold separately) for even more power.
No results match your search. Try removing a few filters.
