The Xtreme Power Dynamic Power Resource (DPR) – consisting of lead-acid batteries, controls and power electronics to absorb and release power, smoothing the wind project's output to the grid – was commissioned in March 2011 at the 30MW Kahuku Wind project on the North Shore of Hawaii.

The cause is still under investigation, but the fire is likely to increase scrutiny of the energy storage technology just as it is gaining momentum as an important enabler of increasing volumes of wind and solar energy.