Home energy technology company Enphase (NASDAQ: ENPH) missed Wall Street’s revenue expectations in Q3 2026, with sales falling 28.5% year on year to $293.3 million. Next quarter’s revenue guidance of $240 million underwhelmed, coming in 19.6% below analysts’ estimates. Its non-GAAP profit of $0.41 per share was 18.7% below analysts’ consensus estimates.

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StockStory’s take

Enphase’s third quarter was marked by continued weakness in the core U.S. residential solar market, as sales volumes fell sharply and results missed Wall Street expectations. Management attributed the underperformance to higher interest rates and the phase-out of the 25D tax credit, which limited solar adoption and pressured sell-through. CEO Badrinarayanan Kothandaraman described the market as “challenging,” noting that the company’s U.S. sell-through declined 35% year over year, in line with industry-wide permit data. He acknowledged that channel inventory remained elevated and that the company’s sequential revenue growth failed to meet original internal expectations.

Looking ahead, Enphase’s guidance reflects a cautious view of near-term demand, with further declines expected in both global sell-through and channel shipments. Management emphasized that new product launches—particularly the fifth-generation IQ Battery and the Propel prepaid lease program—are expected to mitigate some market headwinds starting in 2027. Kothandaraman cautioned, “We are not seeing any meaningful recovery in U.S. demand,” but pointed to growth opportunities in residential batteries, commercial solutions, and future AI data center offerings as potential offsets to continued residential softness.

Key insights from management’s remarks

Management attributed the quarter’s results to weak U.S. residential demand, elevated inventories, and slower-than-expected international momentum, but highlighted several upcoming product launches and market entries as key to the company’s longer-term strategy.

• U.S. residential slowdown: High interest rates and the phase-out of the 25D tax credit led to a significant year-over-year drop in U.S. residential solar sell-through, with management stating this decline mirrored broader industry trends and contributed to channel inventory levels remaining above normal.
• Battery price reductions: Enphase implemented an 8–9% reduction in U.S. battery list prices in an effort to remain competitive, particularly as it prepares for the rollout of its more cost-efficient fifth-generation battery. Management explained this price adjustment pressured near-term margins but is intended to drive higher adoption and market share longer term.
• European and international trends: Europe experienced sequential declines due to seasonality and macroeconomic uncertainty, with France and Germany highlighted as especially soft. Despite this, battery activations in the Netherlands rose 23% quarter over quarter, supported by direct homeowner outreach and the upcoming end of net metering.
• New product pilots: The company is piloting several new growth initiatives, including the IQ Battery G5 (targeting higher energy density and easier installation), the Propel prepaid lease program for U.S. residential solar, and an AC/DC bidirectional EV charging solution, each expected to enter broader commercialization in 2027.
• Commercial and AI data center ambitions: Enphase sees strong potential in U.S. commercial solar and storage, aided by compliance with new domestic-content regulations, and is investing in its IQ Solid-State Transformer (SST) for AI data centers. Management cited advanced customer engagement, including pilots with global technology leaders, as validating the long-term revenue potential of these initiatives.

Drivers of future performance

Management expects ongoing headwinds in core residential solar to be partly offset by new products and verticals, with the pace of adoption for batteries, commercial storage, and AI data center solutions critical to future results.

• Residential battery expansion: Enphase anticipates its fifth-generation IQ Battery will unlock new opportunities in the U.S., Europe, and Australia, with management projecting a 50% increase in battery shipments next year. The company is also targeting retrofit demand among its existing solar customer base, and expects utility virtual power plant (VPP) programs to become a meaningful growth lever as they move from pilots to commercial scale.
• Commercial and EV market entry: Management outlined a strategic push into the U.S. small commercial storage segment with the new IQ Battery C80, as well as the launch of AC and DC bidirectional EV chargers in partnership with top automotive OEMs. These initiatives are expected to contribute incremental revenue and diversify away from residential exposure.
• AI data center solution pipeline: The IQ Solid-State Transformer (SST) project, aimed at improving efficiency and reliability for AI data center power infrastructure, is advancing through customer pilots and compliance milestones. Management believes this market could represent a $1 billion annual revenue opportunity by 2030, contingent on successful customer validations and regulatory approvals.

Catalysts in upcoming quarters

Looking ahead, the StockStory team will be watching (1) the pace of adoption for Enphase’s fifth-generation IQ Battery and the effectiveness of pricing strategies in driving market share, (2) the scaling of Propel and commercial battery pilots as early indicators of new product traction, and (3) progress in the AI data center SST program, especially regulatory compliance and pilot outcomes with hyperscaler partners. Execution on these fronts will determine how quickly Enphase’s diversification strategy translates into sustainable revenue growth.

Enphase currently trades at $24.86, down from $29.80 just before the earnings. In the wake of this quarter, is it a buy or sell? See for yourself in our full research report (it’s free).

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