Peak Energy, the leading developer of passively cooled sodium-ion energy storage systems for the grid, announced the closing of its oversubscribed Series B financing round led by General Motors Ventures with participation from Maverick Silicon, Infinite Capital, Eclipse, Xora Innovation, and LG Technology Ventures. The new $108 million in financing positions Peak to scale domestic manufacturing, fulfill over $1 billion in existing customer orders, and launch its product to the data center market where access to power has become the primary constraint on growth.