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Fortress Power

+ Storage Fortress Power eSpire Mini
Fortress Power eSpire Mini approved for Connecticut Green Bank C&I...

Fortress Power is on a hot streak of acceptance in 2025 on the East coast. Green Mountain Power in Vermont added Fortress Power’s full...

April 15, 2025
+ Storage Fortress Power
Fortress Power, Duke Energy to provide savings to N.C. residents

Energy storage solutions provider Fortress Power is expanding its participation in Duke Energy’s Battery Programs. Through the partner...

April 9, 2025
News Green Mountain Power
Green Mountain Power adds Fortress Power to BYOD battery program

Vermont homeowners in Green Mountain Power territory can now install a Fortress Power battery under the utility’s innovative Bring You...

February 12, 2025
News 2025 energy storge system buyer's guide
Energy Storage System Buyer’s Guide 2025

Energy storage systems (ESS) might all look the same in product photos, but there are many points of differentiation. What power, capacity, ...

November 19, 2024
+ Storage Avalon Whole Home featured image
Video: Overview of Avalon Whole-Home ESS from Fortress Power

The battery specialists at Fortress Power have officially unveiled their Whole-Home Energy Storage System solution with Avalon. The Avalon W...

September 18, 2024
Featured financial-health-panel-1
Five takeaways from Intersolar North America 2023

Last week we hit up Intersolar North America / Energy Storage North America in Long Beach. The trade show exhibit space was sold out, and it...

February 21, 2023
Batteries Fortress-and-Sol-Ark-integrated-001
Fortress Power, Sol-Ark announce new integrated solar, battery solution

Fortress Power teamed up with Sol-Ark again, releasing an update on their integrated solar storage solution. Consisting of 4 eFlex batteries...

April 11, 2022
Batteries fortress-power-enews
Private equity firm White Deer invests in battery provider Fortress...

Private equity firm White Deer announced an investment in Fortress Power, a designer and manufacturer of battery energy storage systems that...

January 10, 2022
News Fotress-Power-battery
Fortress Power lithium battery passes UL 9540A large-scale fire safety...

Fortress Power is now one of only a few lithium battery manufacturers that passed the UL 9540(A) large-scale fire test. The UL 9540A large f...

November 8, 2021
Residential Solar fortress-battery-cabinet
Installer tip: Don’t rush battery system commissioning (and bring an...

System commissioning usually occurs at the end of the installation project, and it can be a rushed and hasty processed. It is important that...

August 24, 2021
+ Storage home energy storage battery
Inexpensive battery backup design tips for solar installers to consider

A common question for solar installers is whether or not the battery system will provide whole house backup power, often in an attempt to av...

July 21, 2021
News
2021 Battery Showcase for Solar Installers

Not all batteries are created equal, and not all batteries make sense – in capabilities or price point – for every customer. To ...

July 6, 2021
News quickbolt
What to see at Intersolar North America 2020

Intersolar North America has a new home and time — set for San Diego from Feb. 4-6. Yes, it is right around the corner! For those atte...

January 15, 2020
+ Storage Fortress Power
Fortress Power has three Lithium Iron Phosphate battery sizes to...

Booth 7335 Fortress Power is a lithium battery manufacturer based outside of Philadelphia that focuses on helping solar installers use the s...

August 29, 2019
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