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Fortress Power

Fortress Power has proudly serviced homeowners and commercial clients worldwide. Their Pennsylvania-based team’s passion for clean energy storage has earned them a place among the world’s top energy storage battery manufacturers. Fortress Power prides themselves on bringing businesses and households energy storage products they can depend on, built from only the highest quality, highest powered lithium ferrite phosphate batteries.

Fortress Power delights in bringing our customers intelligently designed energy technologies, delivered with a personalized touch. From the minute you contact us, Fortress Power’s team members promise to work with you to find the battery that will best adapt to your needs. And after our technicians complete your battery’s installation, Fortress Power stays in touch to ensure you’re satisfied and on your way to energy independence. So not only our are products responsive to your home or small business’s demands, but we are, too.

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EcoDirect and Fortress Power Presents: Mapping Your Solar & Storage System.

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Fortress Power > DuraRack Battery Enclosure - IP65 Rated Indoor / Outdoor Fortress Power 16.2kWh Bundle > 12kW Inverter, eFlex Max Batteries with Guardian Monitoring System Fortress Power 16.2kWh Bundle > 12kW Inverter, Home Batteries with DuraRack Enclosure
Our Price: $1,250.00
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Our Price: $11,310.00
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Our Price: $12,560.00
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Fortress Power DuraRack > Battery Enclosure for eFlex 5.4 kWh Lithium Batteries - IP65 Rated Indoor / Outdoor Fortress Power 16.2kWh Bundle > 12kW Inverter, eFlex Max Batteries with Guardian Monitoring System Fortress Power Envy 12k and DuraRack 16.2kWh eFlex Bundled Kit > True Envy 12kW Inverter, 16.2 kWh (315AH) eFlex MAX Batteries and DuraRack Enclosure | Energy Storage System - Indoor / Outdoor Enclosure
Fortress Power
Battery Enclosure for eFlex 5.4 kWh Lithium Batteries
IP65 Rated Indoor / Outdoor
DuraRack Battery Enclosure
Fortress Power
True Envy 12kW Inverter
16.2 kWh (315AH) eFlex MAX Batteries
Home Battery | Energy Storage System
Envy 12k, 16.2kWh eFlex MAX Bundle
Fortress Power
True Envy 12kW Inverter, 16.2 kWh (315AH) eFlex MAX Batteries
with DuraRack Indoor / Outdoor Enclosure
Energy Storage System
Envy 12k and DuraRack 16.2kWh eFlex MAX Bundled Kit
Fortress Power 16.2kWh Bundle > 12kW Inverter, Home Batteries with FlexTower Enclosure Fortress Power 21.6kWh Bundle > 12kW Inverter, Home Batteries w DuraRack Enclosure Fortress Power 21.6kWh Bundle > 12kW Inverter, Home Batteries with FlexTower Enclosure
Our Price: $13,824.00
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Our Price: $14,533.00
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Our Price: $15,750.00
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Fortress Power Envy 12k and FlexTower 16.2kWh Bundled Kit > True Envy 12kW Inverter, 16.2 kWh (315AH) eFlex MAX Batteries and FlexTower Enclosure All-in-One Energy Storage System - Indoor / Outdoor Enclosure Fortress Power Envy 12k and DuraRack 21.6kWh eFlex MAX Bundled Kit > True Envy 12kW Inverter, 21.6 kWh (315AH) eFlex MAX Batteries and DuraRack Enclosure | Energy Storage System - Indoor / Outdoor Enclosure Fortress Power Envy 12k and FlexTower 21.6kWh Bundled Kit > True Envy 12kW Inverter, 21.6 kWh (420AH) eFlex MAX Batteries and FlexTower Enclosure All-in-One Energy Storage System - Indoor / Outdoor Enclosure
Fortress Power
True Envy 12kW Inverter, 16.2 kWh (315AH) eFlex MAX Batteries and
FlexTower Enclosure All-in-One
Energy Storage System
Indoor / Outdoor Enclosure
Envy 12k and FlexTower 16.2kWh Bundled Kit
Fortress Power
True Envy 12kW Inverter, 21.6 kWh (315AH) eFlex MAX Batteries
with DuraRack Indoor / Outdoor Enclosure
Energy Storage System
Envy 12k and DuraRack 21.6kWh eFlex MAX Bundled Kit
Fortress Power
True Envy 12kW Inverter, 21.6 kWh (420AH) eFlex MAX Batteries and
FlexTower Enclosure All-in-One
Energy Storage System
Indoor / Outdoor Enclosure
Envy 12k and FlexTower 21.6kWh Bundled Kit
Fortress Power Avalon HV Battery Module > 4.9kWh Home Battery Fortress Power Avalon HV Pro ESS 11.4kW 14.7kWh > 14.7kWh Home Battery, 11.4kW Inverter, Smart Energy Panel Fortress Power Avalon HV Pro ESS 7.6kW 14.7kWh > 14.7kWh Home Battery, 7.6kW Inverter, Smart Energy Panel
Our Price: $1,900.00
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Our Price: $12,260.00
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Our Price: $11,870.00
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Fortress Power Avalon HV Battery Module > 4.9kWh LFP Battery Fortress Power Avalon HV Pro ESS 11.4kW 14.7kWh > 14.7kWh Storage, 11.4kW Inverter, Smart Energy Panel Fortress Power Avalon HV Pro ESS 7.6kW 14.7kWh > 14.7kWh Storage, 7.6kW Inverter, Smart Energy Panel
Fortress Power
4.9kWh LFP Battery
Single battery module for Avalon System
Avalon HV Battery Module
Fortress Power
14.7kWh Storage, 11.4kW Inverter
Smart Energy Panel
Avalon HV Pro ESS 11.4kW 14.7kWh
Fortress Power
14.7kWh Storage, 7.6kW Inverter,
Smart Energy Panel
Avalon HV Pro ESS 7.6kW 14.7kWh
Fortress Power DuraRack 16.2 kWh Bundle > 3 eFlex 5.4 Home Batteries with Enclosure Fortress Power DuraRack 21.6 kWh Bundle > 4 eFlex 5.4 Home Batteries with Enclosure Fortress Power eFlex > 5.4kWh (105AH) 48 Volt Home Battery
Our Price: $9,167.00
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Our Price: $11,736.00
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Our Price: $2,415.00
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Fortress Power DuraRack and eFlex 5.4 Bundle > Outdoor Rated DuraRack Battery Storage Rack with 3 eFlex 5.4 Batteries 48 volt 16.2 kWh (315AH) Batteries - Indoor / Outdoor Enclosure Fortress Power DuraRack and eFlex 5.4 Bundle > Outdoor Rated DuraRack Battery Storage Rack with 4 eFlex 5.4 Batteries 48 volt 21.6 kWh (315AH) Batteries - Indoor / Outdoor Enclosure Fortress Power eFlex 5.4 G2 > 48 Volt 5.4kWh (105AH) Battery - Lithium Iron Phosphate (LiFeP04)
Fortress Power
Outdoor Rated DuraRack Battery Storage Rack with
3 eFlex 5.4 Batteries 48 volt 16.2 kWh (315AH) Batteries
Indoor / Outdoor Enclosure
DuraRack and eFlex 5.4 Bundle
Fortress Power
Outdoor Rated DuraRack Battery Storage Rack with
4 eFlex 5.4 Batteries 48 volt 21.6 kWh (315AH) Batteries
Indoor / Outdoor Enclosure
DuraRack and eFlex 5.4 Bundle
Fortress Power
48 Volt 5.4kWh (105AH) Battery
Lithium Iron Phosphate (LiFeP04) eFlex 5.4 G2
Fortress Power eFlex MAX > 48 Volt 5.4kWh (105AH) LiFeP04 Battery Fortress Power eForce 19.2 > Stacked Home Battery System 19.2kWh - Indoor/Outdoor IP65 rated Fortress Power eForce 28.8 > Stacked Home Battery System 28.8kWh - Indoor/Outdoor IP 65 rated
Our Price: $1,924.00
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Our Price: $8,769.00
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Our Price: $11,349.00
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Fortress Power eFlex MAX > 48 Volt 5.4kWh (105AH) LiFeP04 Battery Fortress Power eForce 19.2 > Stacked Home Battery System 19.2kWh - Indoor/Outdoor IP65 rated Fortress Power eForce 28.8 > Stacked Home Battery System 28.8kWh - Indoor/Outdoor IP65 rated
Fortress Power
48 Volt 5.4kWh (105AH) LiFeP04 Battery
eFlex MAX
Fortress Power
Stacked Home Battery System 19.2kWh
Indoor/Outdoor IP65 rated
eForce 19.2
Fortress Power
Stacked Home Battery System 28.8kWh
Indoor/Outdoor IP65 rated
eForce 28.8
Fortress Power eForce 9.6 > Stacked Home Battery System 9.6kWh - Indoor/Outdoor IP65 rated Fortress Power Envy & eVault Bundle > 12kW Inverter, 18.5kWh Home Battery Fortress Power Envy 10kW >10,000 Watt 48 Volt All-In-One Solar Generator | Inverter
Our Price: $4,499.00
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Our Price: $12,999.00
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Our Price: $4,799.00
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Fortress Power eForce 9.6 > Stacked Home Battery System 9.6kWh - Indoor/Outdoor IP65 rated Fortress Power Envy & eVault Bundle > 12kW Inverter, 18.5kWh Battery Storage Fortress Power Envy 10kW > 10,000 Watt 48 Volt All-In-One Solar Generator | Inverter
Fortress Power
Stacked Home Battery System 9.6kWh
Indoor/Outdoor IP65 rated
eForce 9.6
Fortress Power
True Envy 12kW Inverter, 18.5 kWh (360AH) eVault Max Battery
Envy & eVault Bundle
Fortress Power
10,000 Watt 48 Volt All-In-One
Solar Generator | Inverter
Envy 10kW
Fortress Power Envy 8kW > 8,000 Watt 48 Volt All-In-One Solar Generator | Inverter Fortress Power eSpire Mini 208VAC > Commercial Battery Storage Backup System Fortress Power eSpire Mini 480VAC > Commercial Battery Storage Backup System
Our Price: $4,379.00
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Fortress Power Envy 8kW > 8,000 Watt 48 Volt All-In-One Solar Generator | Inverter Fortress Power eSpire Mini 208 > 30-60kW, 81-246kWh, 208/480 VAC Commercial Battery Energy Storage System (BESS) - Home or Business Battery Backup Fortress Power eSpire Mini ESS 480 > 30-90kW, 81-266kWh, 480 VAC Commercial Battery Energy Storage System (BESS) - Home or Business Battery Backup
Fortress Power
8,000 Watt 48 Volt All-In-One
Solar Generator | Inverter
Envy 8kW
Fortress Power
30-60kW, 81-246kWh, 208/480 VAC
Commercial Battery Energy Storage System (BESS)
Home or Business Battery Backup
eSpire Mini ESS 208
Fortress Power
30-90kW, 81-266kWh, 480 VAC
Commercial Battery Energy Storage System (BESS)
Home or Business Battery Backup
eSpire Mini ESS 480
Fortress Power eVault Max 18.5 > 48 Volt 18.5kWh Home Battery Fortress Power FlexTower > Outdoor Rated All-in-One Energy Storage System - Indoor / Outdoor Enclosure Fortress Power FlexTower 16.2 kWh Bundle > 3 eFlex MAX Home Batteries with Enclosure
Our Price: $7,965.00
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Our Price: $2,500.00
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Our Price: $8,210.00
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Fortress Power eVault Max 18.5 > 48 Volt 18.5kWh Battery - Lithium Iron Phosphate (LiFeP04) Fortress Power FlexTower Enclosure > Outdoor Rated All-in-One Energy Storage System - Indoor / Outdoor Enclosure Fortress Power 48 volt 16.2 kWh (315AH) eFlex MAX Batteries and FlexTower Enclosure All-in-One Energy Storage System - Indoor / Outdoor Enclosure and three eFlex MAX Batteries - FlexTower 16.2kWh Bundle
Fortress Power
48 Volt 18.5kWh Battery
Lithium Iron Phosphate (LiFeP04) - eVault Max 18.5
Fortress Power
Outdoor Rated All-in-One Energy Storage System
Indoor / Outdoor Enclosure - FlexTower
Fortress Power
48 volt 16.2 kWh (315AH) eFlex Batteries and FlexTower Enclosure All-in-One
Energy Storage System
Indoor / Outdoor Enclosure and three eFlex MAX Batteries
FlexTower 16.2kWh Bundle
Fortress Power FlexTower 21.6 kWh Bundle > 4 eFlex MAX Home Batteries with Enclosure Fortress Power Guardian > Home Battery Monitoring Gateway - for eFlex & eVault Max Fortress Power LFP-10 Max > 10kWh Off-Grid Home Battery w 10 Year Warranty - Non-UL
Our Price: $10,135.00
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Our Price: $349.00
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Our Price: $5,500.00
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Fortress Power FlexTower 21.6kWh Bundle > 48 volt 21.6 kWh (420AH) eFlex MAX Batteries and FlexTower Enclosure All-in-One Energy Storage System - Indoor / Outdoor Enclosure w/ four eFlex MAX Batteries Fortress Power Guardian > Battery Monitoring Gateway - for eFlex & eVault Max Fortress Power LFP-10 Max > 48 Volt 10kWh Battery Storage - Lithium Iron Phosphate (LiFeP04) - Non-UL - with 10 Year Warranty
Fortress Power
48 volt 21.6 kWh (420AH) eFlex MAX Batteries and FlexTower Enclosure All-in-One
Energy Storage System
Indoor / Outdoor Enclosure w/ four eFlex MAX Batteries
FlexTower 21.6kWh Bundle
Fortress Power
Battery Monitoring Gateway - for eFlex & eVault Max
Guardian
Fortress Power
48 Volt 10kWh Battery Storage - Lithium Iron Phosphate (LiFeP04)
with 10 Year Warranty - LFP-10 Max
Fortress Power LFP-10 Max > 10kWh Off-Grid Home Battery w 5 Year Warranty - Non-UL Fortress Power True Envy 12kW > 12,000 Watt 48 Volt All-In-One Solar Generator | Inverter
Our Price: $4,750.00
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Our Price: $5,199.00
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Fortress Power LFP-10 Max > 48 Volt 10kWh Battery Storage - Lithium Iron Phosphate (LiFeP04) - Non-UL - with 5 Year Warranty Fortress Power Envy True 12kW > 12,000 Watt 48 Volt All-In-One Solar Generator | Inverter
Fortress Power
48 Volt 10kWh Battery Storage - Lithium Iron Phosphate (LiFeP04)
with 5 Year Warranty - LFP-10 Max
Fortress Power
12,000 Watt 48V All-In-One
Solar Generator | Inverter
Envy True 12kW
   
 
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Fortress Power eFlex MAX
Buy 3, get the 4th eFlex MAX FREE!

Use at checkout Promo Code: eFlex4thFree
Promotion valid now, until December, 31st 2024

Fortress Power eFlex MAX promo - valid until December, 31st, 2024

Fortress Power Envy 10kW Inverter promo - valid until December, 31st, 2024