Energy Storage System uses transformerless DC inverter

September 23, 2019 //By Nick Flaherty
Energy Storage System uses transformerless DC inverter
The SimpliPhi AccESS Energy Storage System (ESS) combines cobalt-free LFP PHI batteries with the DC transformerless Sol-Ark hybrid inverter and built-in dual integrated charge controllers in a NEMA-3R cabinet

SimpliPhi Power has teamed up with Sol-Ark to use a DC transformerless hybrid inverter in its latest energy storage system (ESS).

The AccESS + Sol-Ark unit combines SimpliPhi’s cobalt-free LFP PHI batteries with the Sol-Ark 8K all-in-one inverter and built-in dual integrated charge controllers in a NEMA-3R indoor/outdoor-rated cabinet.

“As awareness of the different lithium ion chemistries available in the market has grown, the AccESS has gained popularity worldwide with home and business owners looking for a high performance and safe alternative to the ESS solutions that utilize lithium cobalt-based batteries,” said Catherine Von Burg, CEO of SimpliPhi. “Now with the Sol-Ark, we’re also able to deliver an integrated solution that is more efficient, more powerful, and even simpler to install.”

“When looking at all-in-one-solution partners, we were drawn to SimpliPhi as a battery manufacturer that takes performance and long term costs as seriously as we do, and because they share our mission to help families be less dependent on the grid in an affordable way,” said Tom Brennan, engineering manager at Sol-Ark. “The combination of our ability to deliver 96.5 percent efficiency in on-grid and 93 percent in off-grid and time of use scenarios with minimal conversion losses with SimpliPhi’s 98 percent efficiency is unbeatable in the market and promises to do more to create universal energy access and security.”

Available with 15.2 or 22.8 kWh of PHI storage, the AccESS can scale up with additional cabinets for more power storage and greater output with the introduction of Sol-Ark’s 12K by the end of the year. Units can be safely installed indoors or outdoors in temperatures from -20° to +50 °C, on- or off-grid. The AccESS can be charged with solar, wind, grid or generator power and comes pre-wired and pre-programmed.


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