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Welcome to Critical Power Online

Critical Power Online, launched in 2017, is part of the stable of international publications produced by Energy Storage Publishing, including the BEST Battery Briefing e-newsletter, Batteries & Energy Storage Technology (BEST) magazine and Chinese BEST.


Here we apply our unique brand of technology journalism to the critical power sector— the application of energy storage technologies to our power dependent world.


If you are interested in UPS systems, hybrid power, gensets, fuel cells and standby power of all kinds (including batteries) then Critical Power

Online is for you. The web site is updated on a rolling basis. 


To keep abreast of developments between web site visits, enter your e-mail address in the 'Join Our Mailing List' section below and you'll receive a summary of each story as it is posted online.


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July 5, 2018

US-based Sunrun is joining the ongoing effort to provide backup power solutions to homes in Puerto Rico after the devastating hurricanes that hit the Caribbean last September.

Sunrun is now offering its lithium battery systems integrated with solar panels for homes...

January 9, 2018

Backup power systems continue to help support homes, hospitals and businesses across Puerto Rico in the wake of devastating hurricanes that hit the Caribbean last September.

According to the U.S. Army Corps of Engineers’ (USACE) temporary emergency power mission to the...

November 14, 2017

California-based Polar Power has been awarded a “multi-purchase order” to provide 15-kilowatt backup diesel DC gensets at telecoms sites across hurricane-devastated Puerto Rico.

Polar said an “initial” 57 units from an unnamed “new Tier-1 wireless carrier customer in th...

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BEST magazine

The leading International quarterly for manufacturers and users of electrochemical power

Chinese BEST

The Chinese edition of BEST

BEST Battery Briefing

The weekly newsletter sent to the industry

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