The Future of Solar Financing: Prepaid Leases and NEM 3.0

The solar industry is seeing big shifts as we head into 2026. With changes to tax credits and new financing options emerging, homeowners need to understand how these developments might affect them, especially in California under NEM 3.0.

Key Takeaways

• Third-Party Ownership (TPO) is growing: Leases and Power Purchase Agreements (PPAs) are becoming more common as the individual solar tax credit (25D) phases out.
• Domestic Content & FEOC rules: To qualify for enhanced tax credits (like the 40% bonus), solar equipment must meet domestic content and Foreign Entities of Concern (FEOC) requirements.
• Safe Harboring: TPO providers are buying equipment in advance to lock in tax credits for future installations.
• Prepaid Leases: A new financing option where homeowners pay a lump sum upfront for a 20-25 year lease, often including battery replacements.
• Virtual Power Plants (VPPs): Aggregated home solar and battery systems can provide grid services, creating new revenue streams for homeowners.

Understanding the Changing Solar Landscape

The solar market has felt like a roller coaster lately, with tariffs, tax credit changes, and fluctuating prices. However, there's a sense of more certainty now, which is good for the industry. A major change is the phasing out of the 25D individual solar tax credit at the end of 2025. This means that for those financing their solar systems, especially through third-party ownership (TPO) like leases or PPAs, the way tax credits are handled is changing.

Third-Party Ownership and Tax Credits

When you finance a solar system through a TPO product, the leasing company can claim a portion of the tax credit. This is often passed on to homeowners as a lower monthly payment. To qualify for these credits, especially the domestic content bonus, equipment must meet certain standards. This includes using components that aren't from countries deemed a concern by the U.S. government, like China.

For TPO providers, this means they can get the standard 30% Investment Tax Credit (ITC) plus an additional 10% domestic content bonus, totaling 40% for solar and battery systems. This is a significant incentive for TPO companies to ensure their supply chain meets these requirements.

Safe Harboring: Locking in Future Credits

To ensure they can still offer systems with tax credits beyond current deadlines, TPO providers are engaging in "safe harboring." This involves purchasing equipment in advance to qualify for tax credits even after the main credit phases out. TPO companies have until July 2026 to safe harbor equipment, which they can then use for installations indefinitely to qualify for tax credits.

The Rise of Prepaid Leases

Beyond traditional leases and PPAs, a new financing model is gaining traction: the prepaid lease. With this option, homeowners pay a single, upfront cash amount for a 20-25 year lease. For example, a $15,000 upfront payment might cover a solar system and include battery replacements every 10 years over the system's lifespan. For those who don't have the full cash amount, taking out a loan to cover the prepaid lease is also an option.

This offers a way to secure solar power with a fixed, upfront cost, potentially simplifying long-term budgeting. It's seen as an innovative way to bridge the gap as the 25D tax credit disappears and the 48E tax credit (for TPOs) becomes more prominent.

What This Means for CA Homeowners Under NEM 3.0

For California homeowners operating under Net Energy Metering 3.0 (NEM 3.0), the focus shifts heavily towards self-consumption. NEM 3.0 significantly reduces the export rates for electricity sent back to the grid, making it less financially beneficial to overproduce solar power. This means maximizing the use of your solar energy while it's being generated is key to getting the most value from your system.

• Increased Battery Importance: Batteries become even more critical. They allow you to store excess solar energy generated during the day for use in the evening or during peak rate times, rather than exporting it at a low rate.
• Prepaid Leases and Self-Consumption: A prepaid lease, especially one that includes a battery, can be attractive. By paying upfront, you secure your energy costs and, combined with a battery, can significantly increase your self-consumption, reducing your reliance on grid electricity during expensive peak hours.
• Financing Options: While the 25D tax credit is less direct for homeowners in TPO arrangements, the overall value proposition of solar under NEM 3.0 is enhanced by options that lock in costs and maximize on-site usage. The emergence of prepaid leases and loan-to-prepaid lease options provides more flexibility.
• Virtual Power Plants (VPPs): Participating in VPPs, where your battery can be aggregated with others to support the grid, offers another potential revenue stream. This can further improve the economics of a solar + battery system, especially under NEM 3.0 where export rates are low.

Navigating Solar Bankruptcies and Choosing Partners

With various financing options, it's important to consider the stability of the companies involved. We've seen some solar financing companies face difficulties. As a homeowner, researching the financial health of any TPO provider is crucial. Look into their balance sheets and ensure they are a solid company that you can trust for the 25-year lifespan of your system. While assets in bankruptcy are often purchased by other entities, and customers are typically taken care of, it's best to avoid such situations by choosing reputable partners.

The Future of Solar Financing

The future of solar financing looks dynamic. While cash and loan purchases will remain, TPO products, especially innovative ones like prepaid leases, are set to grow. The industry is working to reduce costs across the board – from customer acquisition to equipment – to offset the loss of the 25D tax credit. Additionally, the development of virtual power plants offers a new way for homeowners to add economic value to their solar and battery investments, which is particularly relevant for maximizing returns under NEM 3.0.