Lease vs Buy a Home Battery in 2026 (the 48E Question)
Since January 1, 2026, the federal tax landscape splits cleanly: buy a system and there's no federal credit; lease it (or sign a PPA) and the third-party owner claims the surviving commercial credit (Section 48E) — typically sharing part of it through lower payments. That's why every installer suddenly leads with lease paperwork. Here's the unglamorous breakdown.
Not tax or legal advice
Summary of public rules as of June 2026 — structures vary by provider and state. Have contracts reviewed; confirm tax specifics with a professional.
Buying in 2026
- You own the asset; no contract encumbers the house at sale
- All state/utility incentives and VPP income flow to you
- Cheapest lifetime cost if you hold long-term — no financing/lessor margin
- No federal credit anymore — full sticker upfront (or loan interest)
- You carry warranty/replacement risk after year 10–15
Leasing / PPA in 2026
- Low or zero upfront; the lessor claims 48E and competition forces partial pass-through
- Maintenance and warranty are the owner's problem (the company's), not yours
- Total payments over the term usually exceed cash price — you're financing plus paying lessor margin
- Sale-of-home friction: buyer must qualify for and accept contract transfer; UCC-1 filings on the system can complicate closings
- Escalator clauses (1–3%/yr payment increases) compound quietly
- VPP/incentive revenue often goes to the lessor — read who keeps it
The five questions that expose a bad lease
- What's the cash price of this exact system, so I can compare lifetime cost? (Refusing to quote one is your answer.)
- What's the escalator, and what's total nominal payment over the full term?
- Who keeps incentive and VPP revenue?
- What exactly happens when I sell the house — transfer terms, buyout schedule, lien removal?
- What's the end-of-term outcome — removal, purchase price, renewal rates?
Our general read
Strong state-incentive states + long ownership horizon → buying still tends to win lifetime math despite losing the federal credit. Cash-constrained households in high-rate states → a well-structured lease can beat doing nothing, because the 48E pass-through is real money. The worst outcome is signing the first lease offered — quote both paths.
Considering an installed system?
Installed pricing for identical hardware varies as much as ±30% between local installers. Get 2–3 competing quotes through a marketplace like EnergySage before signing anything — it is free and the single highest-leverage step in the whole process.