ELON, EXPLAINED
Investor Brief · 2026 H1

Tesla Energy, in brief.

Storage, solar, and Autobidder: Tesla's margin-rich energy segment

Page 1 of 7 · The thesis

Tesla Energy is a second growth engine that sells batteries at scale, earns roughly 30% gross margin above the car business, and layers software on top.

$12.77B (+27% YoY)
FY2025 energy revenue
Energy generation and storage segment, per Tesla IR Q4 2025 update and 10-K
46.7 GWh
FY2025 storage deployed
Record full-year deployments, up from 31.4 GWh in 2024 (Tesla IR Q4 2025)
~30%
FY2025 energy gross margin
Segment gross profit ~$2.7B, well above automotive ~17.9% ex-credits (Tesla IR / 10-K)
>1,000,000
Powerwalls installed
Crossed 1M units across 30+ countries, September 2025 (tesla.com)
~80 GWh/yr combined
Megapack factory capacity
Lathrop, California plus Shanghai Megafactories (Grokipedia, Tesla Megapack)
~12x since 2021
Deployment growth
From ~3.9 GWh (2021) to 46.7 GWh (2025) (Grokipedia, Tesla Energy)

The snapshot above is the free preview. The full seven-page brief continues below.

The full brief

Read all seven pages

Page one is free. The next six go deeper: what it is, how the money works (with sourced data charts), the bull and bear cases, what to watch, and the bottom line.

  1. 2Tesla's battery and grid businessWhat it is
  2. 3Higher margin than the car businessHow the money works
  3. 4Why the upside is realThe bull case
  4. 5What could go wrongThe bear case
  5. 6The signposts that settle the debateWhat to watch
  6. 7From rounding error to real segmentThe bottom line

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This is an educational brief, not investment advice and not a recommendation to buy or sell any security. Figures trace to primary filings, official statements, and Grokipedia; privately held valuations are labeled as reported or estimated.

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