"Tesla's utility-scale battery product, Megapack, posted record Q4 energy storage deployments of 14.2 GWh, with energy segment revenue of $3.84 billion, up 25% year-over-year."
"The lithium iron phosphate (LFP) chemistry behind these products offers cost, safety, and cycle-life advantages over alternative chemistries, and Tesla is building the supply chain to own every layer."
"Musk was blunt about the competitive position: 'We're pretty much ... not just the largest, but also the only lithium refinery and cathode refinery in America.'"
"The Powerwall Virtual Power Plant supported 89,000+ events across 1 million+ installed units in Q4 alone."
Tesla's energy business generated $12.8 billion in revenue in 2025, a 26.6% increase, while automotive revenue declined 11% in Q4 2025. The Megapack product achieved record deployments of 14.2 GWh, contributing $3.84 billion in energy segment revenue, up 25% year-over-year. Tesla is expanding its supply chain for lithium iron phosphate batteries, with production expected to begin in 2026. The company is also developing a software-driven utility layer, including the Powerwall Virtual Power Plant and the Autobidder platform for energy trading.
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