Alphabet's Google invested in Redwood Materials Inc., a battery recycling and energy storage startup founded by a Tesla co-founder. The expanded funding round values Redwood at more than $6 billion.

The investment highlights a strategic push by major tech firms, including Google, to secure reliable, clean energy sources. These sources are necessary for power-intensive data centers crucial for AI development. This move aligns with Alphabet's recent purchase of clean energy developer Intersect Power. Alphabet focuses on shoring up its energy supply chain for future growth.