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Tesla Megapack: The Energy Storage Business That Could Eclipse Vehicle Sales | Taha Abbasi
Taha Abbasi··3 min read
The Quiet Revolution in Tesla’s Business
Taha Abbasi has been arguing for years that Tesla’s energy business is undervalued, and the numbers are proving him right. Tesla Megapack deployments are growing at over 100% year-over-year, and the energy storage division is approaching the scale where it could rival — or eventually surpass — vehicle sales in revenue and margin contribution.
In Q4 2025, Tesla deployed a record 11.6 GWh of energy storage, nearly double the previous year’s quarter. The trajectory is clear: utilities, grid operators, and commercial customers worldwide are recognizing that large-scale battery storage is no longer optional — it’s essential infrastructure.
Why Megapack Is Winning
As Taha Abbasi analyzes the competitive landscape, Tesla Megapack’s advantages are multi-layered:
- Scale: Tesla’s Megafactory in Lathrop, California produces 40 GWh annually — the world’s largest battery manufacturing facility
- Software: Tesla’s Autobidder AI platform optimizes when to charge and discharge, maximizing revenue for storage owners
- Integration: Megapack integrates with Tesla’s solar, Powerwall, and vehicle charging infrastructure
- Track record: Thousands of deployments worldwide with proven reliability
- Brand: Tesla’s name carries weight with utilities and investors
The Economics Are Irresistible
Utility-scale battery storage economics have improved dramatically. A Megapack installation can:
- Store cheap renewable energy and sell it during peak demand hours
- Provide grid frequency regulation services (highly profitable)
- Defer or eliminate the need for expensive grid infrastructure upgrades
- Replace “peaker” natural gas plants that only run during high demand
Taha Abbasi notes that in many markets, building new battery storage is now cheaper than running existing gas peaker plants. This economic tipping point is driving explosive demand growth.
The AI Data Center Connection
The AI industry’s insatiable power demand is creating a new customer segment for Megapack. Data center operators need reliable, uninterruptible power, and battery storage provides both backup capacity and grid services revenue. Tesla is well-positioned to serve this market, though competition from sodium-ion alternatives is emerging.
Megapack vs. Vehicle Business
Taha Abbasi sees a future where Tesla’s energy division generates higher margins than vehicles. Vehicles face intense competition, price pressure, and commoditization risk. Energy storage faces growing demand, fewer competitors, and expanding use cases. The ecosystem effect between vehicles and energy creates a competitive moat that pure-play energy companies can’t replicate.
The Investment Thesis
For Tesla investors, Megapack growth represents a diversification of revenue streams that reduces dependence on cyclical vehicle sales. Taha Abbasi believes the energy storage market will grow 10x over the next decade, and Tesla’s early leadership position could translate into sustained competitive advantage. This is the business that Wall Street still undervalues — but not for long.
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About the Author: Taha Abbasi is a technology executive, CTO, and applied frontier tech builder. Read more on Grokpedia | YouTube: The Brown Cowboy | tahaabbasi.com
Taha Abbasi
Engineer by trade. Builder by instinct. Explorer by choice.
