KYLE, TX, According to SEC filings, Xtreme Power Inc. has closed on a $16.39 million financing round with 12 investors.

The privately held energy storage company already had raised more than $50 million since its founding in November 2004, including a $29.5 million Series C round last July, Citybizlist reported.

Xtreme Power's current institutional investors include:
Sail Venture Partners Bessemer Venture Partners, Dow Chemical Co., Spring Ventures, and SkyLake Incuvest.

Founded in November 2004, Xtreme Power (XP) designs, engineers, manufactures, and operates integrated energy storage and power management systems, called Dynamic Power Resources (DPR), for Independent Power Producers, Transmission and Distribution Utilities, and Commercial and Industrial End Users, among others. The DPR™ offers more than just the ability to time-shift power, but also the opportunity to utilize the fast-responding and configurable digital system to simultaneously perform many services demanded by the energy market. For this reason, customers can respond to an ever-changing market while extracting the most value out of the same proven XP technology.

Headquartered in Kyle, Texas, XP manufactures at multiple, US locations. The rapidly expanding Company also has representation in Austin, Texas; Maui, Hawaii; Houston, Texas; Washington, D.C.; and Chicago, Illinois.