Tag: "surge current"

09/30/20

  01:09:00 am, by Sophia   , 323 words  
Categories: Energy Storage

Power Start - Giving Storage Systems a Boost

Ensemble lab

Enphase Ensemble Lab in Petaluma

When you are turning on your AC or other large household appliances, you probably don’t think about how much current these systems require to start-up. Yet many appliances are going to be pulling anywhere from 2 to 2.5 times their regular running current to complete the start-up process. This large change in amperage is what we call a “surge current”.

“Surge current refers to a short-term spike in power demand from a particular appliance to get it started…” For example, when your car battery dies– you have to jump it using another cars battery. “Something similar happens for high load appliances in your home when they are turned on,” suggests Enphase.

With the recent fires and grid blackouts– Californians are coming to grips with the pressing need for solar energy backed by smart storage. The current storage systems on the market have struggled to keep up with surge current loads. This makes it nearly impossible for homes to be independent from the grid. Your system may be able to keep your appliances running, but what happens when they stop? 

According to Enphase, “This inability to handle power-hungry appliances has been a challenge for battery storage systems for years… until now.” 

Into that void now comes the new Power Start™ by Enphase. This technology is designed to help reliably start every appliance in your home during a blackout. Power Start’s unique algorithm detects when a large appliance is trying to start back up and automatically disperses the same amount energy over a fraction of a second. 

This technology can be added onto the Encharge 10 battery systems, which have a continuous power rating of 3.84kWs and a surge power rating of 5.76kWs for 10 seconds.

You can click this link to find common surge current demands within different appliances.

The new Power Start by Enphase is a necessary and vital addition to battery storage systems. This technology will improve reliability and independence from the grid.

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Jim Jenal is the Founder & CEO of Run on Sun, Pasadena's premier installer and integrator of top-of-the-line solar power installations.
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