Enphase Energy Inc. (ENPH) announced Tuesday it's expanding an existing safe harbor agreement with a major solar financing company that offers leases and power purchase agreements to U.S. homeowners. The move is all about helping solar developers lock in tax credits before policy changes potentially mess with the economics.

This isn't Enphase's first rodeo with safe harbor deals. The arrangement builds on a previous transaction announced after the One Big Beautiful Bill Act passed in July 2025, showing that Enphase is doubling down on partnerships with third-party ownership providers in what's become a pretty uncertain regulatory environment.

The financial upside is straightforward: Enphase expects this expanded agreement to generate around $55 million in revenue spanning the fourth quarter of 2025 and first quarter of 2026, with the bulk hitting the books in Q1.

Why Safe Harbor Matters

Here's the basic idea behind safe harboring solar equipment. Developers can lock in eligibility for the federal investment tax credit under today's rules, protecting themselves from whatever Congress might cook up next year. It's essentially insurance against policy whiplash.

Enphase says it can accommodate both the 5% safe harbor and physical work test approaches, giving financing partners flexibility based on project timing and how big they're building. That optionality matters when you're trying to coordinate installations across different markets with different timelines.

The agreement is designed to support broader rollout of Enphase's IQ8 Microinverters, which are manufactured domestically. There's an added bonus for certain IQ8HC Microinverters with a "DOM" SKU suffix. When paired with other U.S.-made components, these products may help projects qualify for the domestic content bonus tax credit, which aligns nicely with the industry's evolving sourcing requirements.

Looking Ahead

Ken Fong, senior vice president of sales at Enphase, explained that safe harbor arrangements help partners move projects forward faster during periods of policy uncertainty. By securing tax credit eligibility upfront and reducing risk, these deals enable scaling of residential and commercial solar deployments backed by Enphase's technology.

The company isn't stopping here. Enphase indicated it expects to sign additional safe harbor agreements over the coming months, suggesting demand for this kind of tax credit protection remains strong.

ENPH Price Action: Enphase Energy shares were up 2.96% at $32.29 at the time of publication on Tuesday.