Enphase Energy

Enphase Energy (Nasdaq: ENPH) sells home solar microinverters, batteries and EV chargers through distributors, not to homeowners directly, and the profit leans on a U.S. manufacturing tax credit. FY2025 (year ended Dec 31, 2025) revenue was $1.47B (+11%): U.S. $1,188.7M (+27%), international $284.3M (−28%). It sold about 6.4 million microinverters (−2%) and shipped 706.1 MWh of IQ Batteries (+36%). Gross profit was $687.0M (46.6% margin), and $238.7M of the 2025 cost of revenue was offset by the Advanced Manufacturing Production Tax Credit (AMPTC, the Section 45X credit, 16.2 points of margin). Operating income was $157.5M and net income $172.1M, so without that credit the year would likely have been an operating loss (INFERENCE). One customer was about 39% of revenue. In H1 2026 the U.S. residential tax credit (Section 25D) expired and revenue fell 20% to $574.8M (Q2 $291.9M, −20%); Q2 gross margin was 60.0% only because of $45.4M of one-time tariff refunds, and Enphase paid off its $632.5M 2026 convertible notes in cash in March 2026, leaving $937.7M of cash and securities and $575.0M of 2028 notes.

Business Model Canvas
Enphase Energy
Research date: Oct 11, 2026
Evidence-backed · sources in companion brief

Key Partners

  • Contract manufacturers — Flex, Salcomp Manufacturing India and Sunwoda assemble and test some microinverters, batteries, chargers and gateways (FACT).
  • Solar distributors — the main buyers; they bundle Enphase with panels and racking and resell to installers (FACT).
  • TPO and finance partners — lease and PPA providers; safe harbor agreements in 2025 (FACT).
  • Solar-module makers (OEMs) — integrate microinverters into their panels (FACT).
  • Battery-cell suppliers — LFP cells exclusively from two vendors in China (FACT).

Key Activities

  • Design — power electronics, semiconductors, networking and cloud software (FACT).
  • Build — in-house Arlington, Texas plant plus Flex; U.S. lines in South Carolina and Texas; about 5 million microinverters per quarter of combined U.S. capacity (FACT).
  • Sell — mostly through distributors, plus an online store and marketplaces (FACT).
  • Support — 24/7 installer and homeowner support; NPS 78% in 2025 (FACT).
  • Monetize credits — sell AMPTC to third parties (FACT: $235.0M of 2025 credits sold at 93% of face value in March 2026).

Key Resources

  • Installed base — 86.4M microinverters shipped; 5.1M+ systems, 160+ countries (FACT).
  • Patents — about 400 granted and 200 pending (FACT).
  • People — 2,872 employees; 1,743 in India, 717 in the U.S. (FACT).
  • Cash and securities — $1.51B (Dec 2025); $937.7M (Jun 2026) (FACT).
  • U.S. plants — South Carolina and Texas lines with higher domestic content (FACT).

Value Propositions

  • Panel-level power conversion — works with virtually every solar panel (FACT).
  • One platform — solar, battery, load control and EV charging managed in one app (FACT).
  • Backup and storage — IQ Battery 5P and 10C, plus off-grid configurations (FACT).
  • Safer, simpler installs — no high-voltage DC string wiring (FACT, company claim).
  • Grid services — participates in virtual power plant programs in the U.S., Canada and Europe (FACT).

Customer Relationships

  • Installers — Installer App, Solargraf design and proposal software, and lead appointments (FACT).
  • Homeowners — Enphase App monitoring and 24/7 support (FACT).
  • Care plan — optional service plan with remote diagnostics and covered on-site labor (FACT).
  • Online store — mostly for warranty and upgrade products (FACT).
  • Customer satisfaction — NPS 78% in 2025 and 2024, 76% in 2023 (FACT).

Channels

  • Distributors — primary route to market (FACT).
  • Large installers and OEMs — sold directly (FACT).
  • TPO finance providers — strategic partners buying for leased systems (FACT).
  • Online store and marketplaces — sales to homeowners, mainly for warranty and upgrade items (FACT).
  • Concentration — one customer about 39% of 2025 revenue (48% in 2024); not named in the filing (FACT).

Customer Segments

  • U.S. residential installers — the core buyers, via distributors (FACT).
  • TPO and lease providers — own systems and can claim the Section 48E credit (FACT).
  • Europe and rest of world — $284.3M in 2025, down 28% (FACT).
  • Small commercial buyers — IQ commercial microinverters and CS-100 fleet charger (FACT).
  • Homeowners — buy via installers; some via the online store (FACT).

Cost Structure

  • Cost of revenue — $786.0M in FY2025, net of $238.7M AMPTC (FACT).
  • R&D $189.1M, S&M $197.5M, G&A $135.8M (FACT).
  • Warranty obligations — $214.0M at Dec 31, 2025 (INFERENCE sum); $203.2M at Jun 30, 2026 (FACT).
  • Tariffs — higher tariff costs in 2025; $45.4M IEEPA refunds in Q2 2026 (FACT).
  • Capex — $40.6M in 2025; $34.3M in H1 2026 (FACT).

Revenue Streams

  • Microinverters — about 6.4M units in 2025 (−2%); about 3.0M in H1 2026 (FACT).
  • IQ Batteries — 706.1 MWh in 2025 (+36%); 216.9 MWh in H1 2026 (−40%) (FACT).
  • Services over time — $123.0M in 2025 (FACT).
  • Manufacturing credit — AMPTC $238.7M reduced 2025 cost of revenue (FACT).
  • Safe harbor — $91.2M of 2025 U.S. microinverter revenue; $118.8M in H1 2026 (FACT).
Sources: sec.gov/Archives/edgar · sec.gov/Archives/edgar
Not affiliated with Enphase Energy.
BMC · Osterwalder 9-block · Oct 11, 2026