Partial State of Charge and Solar Telecom Batteries

by Terry Holtz on February 12, 2017 at 3:00 PM

In off-grid telecom sites with energy storage, the solar batteries are usually sitting at a partial state of charge, meaning they are not fully charged, nor fully discharged.

Solar-powered telecom towers commonly have lead acid batteries for their energy storage systems. However, operating or even sitting idle at a partial state of charge is problematic for lead-acid batteries.  As lead acid batteries discharge, the active materials transform from lead to lead sulfate - it is this chemical reaction that provides the requested power.  

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Grid Power, Telecom Tower, and Battery Kilowatt-Hours: Shanghai Installation Leads the Way

by Paul Ruggiero on February 5, 2017 at 10:00 AM

I recently wrote about how off-grid, solar telecommunications towers are starting to use energy storage to extend the reach of communication networks. Grid-tied towers are starting to get in on distributed energy generation, too. One such tower in Shanghai recently added solar power and Aspen energy storage. What can solar batteries do for a telecom tower with reliable grid power? More than you might think.

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Aquion Energy Delivers Sustainable Battery System to Integrate with Off-Grid Solar Power at Kruger National Park in South Africa

by Paul Ruggiero on February 1, 2017 at 10:04 AM

- PRESS RELEASE -

55 kWh of Aquion saltwater batteries paired with solar will reduce diesel use and provide safe, long-duration storage for solar power self-consumption

Pittsburgh, Pa., Feb. 1, 2017 – Aquion Energy, Inc., manufacturer of Aspen saltwater batteries and energy storage systems, has announced a newly installed off-grid microgrid at a nature lodge resort in Kruger National Park in South Africa. The microgrid consists of a 55 kWh Aquion Aspen battery bank, paired with a 10 kW solar array.

The solar array and Aquion’s Aspen batteries provide full power for the camp, which consists of four luxury “tents,” a central lounge, swimming pool, and a water pressure pump for drinking water. The batteries have been sized to comfortably support the site’s loads during overcast conditions before getting assistance from a back-up diesel generator. The microgrid operates silently, enabling guests to peacefully enjoy the wildlife and beautiful landscape.

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Aquion Saltwater Batteries to Be Featured in PBS Nova "Super Battery" Episode

by Claire Juozitis on January 30, 2017 at 12:32 PM

David Pogue is here to show you how energy storage holds the keys to a greener future.


David Pogue and Jay Whitcare discussing renewable energy storage.

UPDATE: The "Search for the Super Battery" full episode is now available online! Watch here. 

If you’re not familiar with the program, PBS NOVA is a weekly science series about everything from “the latest breakthroughs in technology to the deepest mysteries of the natural world.” NOVA has been in production for over 30 years and reaches an audience of more than five million viewers in the United States every week!

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Video: NRG's Station A Installs Safe Solar Batteries

by Claire Juozitis on January 26, 2017 at 2:26 PM

Station A + Aspen Solar Batteries = A Sustainable Match

NRG’s Station A team is a  talented group of engineers, computational scientists, and business strategists that engineer and integrate clean Distributed Energy Resource (“DER”) solutions, develop new software analytics tools, and test new offerings through pilot projects.. Their goal is to shape NRG's next generation of clean, distributed power plants.

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