Solar stocks are riding a new narrative: AI data centers need power, and solar companies want to supply it.
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Enphase, SolarEdge jump 8% as AI data center theme lifts solar
Solar stocks are riding a new narrative: AI data centers need power, and solar companies want to supply it.
Enphase Energy and SolarEdge Technologies shares surged about 8% in early trading Tuesday as investors bet that solar companies will play a growing role in powering the AI data center boom.
"Data center power demand is creating a second growth leg for distributed solar," Barclays analysts led by Christine Cho said in a note upgrading Enphase Energy. The firm cited Enphase's solid-state transformer business as a key driver for data center power management applications.
Enphase and SolarEdge each added roughly 8% by mid-morning, outpacing the broader renewable energy sector. Barclays' upgrade highlighted that Enphase's solid-state transformer technology, initially developed for residential solar, is finding new applications in data center power management — a market that could require hundreds of gigawatts of additional capacity by the end of the decade.
The rally signals a broadening of the AI infrastructure trade beyond traditional beneficiaries such as Nvidia and utility companies. If solar and energy storage can capture even a fraction of data center power demand, the addressable market for companies like Enphase and SolarEdge could expand significantly beyond their core residential and commercial solar businesses.
The AI data center power theme has been one of the most persistent investment narratives of 2026. Chevron Corp. and Microsoft Corp. recently announced a deal that could open the door to more natural gas-fired power projects for data centers, while Pershing Square Capital Management disclosed a more than $2 billion stake in Microsoft last week, citing the company's AI leadership.
For solar companies, the opportunity lies in the sheer scale of projected demand. Data center electricity consumption in the US is expected to more than double by 2030, according to the Electric Power Research Institute, requiring tens of gigawatts of new generation capacity. Solar plus battery storage offers a faster-to-deploy alternative to natural gas plants, which face permitting delays and fuel supply constraints.
A New Growth Vector for Distributed Solar
Enphase's solid-state transformer technology represents a potential bridge between residential solar and commercial-scale data center applications. Unlike traditional transformers, solid-state versions can manage bidirectional power flows and integrate more seamlessly with battery storage systems — capabilities that data center operators increasingly demand as they seek to balance grid reliability with renewable energy targets.
SolarEdge, meanwhile, has been expanding its commercial and industrial inverter business, positioning itself to serve mid-scale data center facilities and colocation sites. The company's DC-optimized inverter technology offers efficiency gains that become meaningful at the megawatt scale.
The question for investors is whether this is a sustainable thematic shift or a short-lived rotation. Enphase shares trade at about 25 times forward earnings, a premium to SolarEdge's 18 times, reflecting the market's higher expectations for Enphase's data center pivot. Barclays' upgrade provides a floor, but the sector will need concrete project announcements — not just narrative — to sustain the rally.
This article is for informational purposes only and does not constitute investment advice.
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