Tax & structure
How the standalone-storage ITC and §6418 transfer work
Two changes in the Inflation Reduction Act of 2022 did more than any market development to turn battery energy storage from a niche adjunct of solar into a first-class, investable infrastructure asset. Understanding them is the key to understanding why disciplined capital is moving into storage now.
1. Standalone storage now earns the credit in its own right
Before the Act, a battery generally qualified for the federal Investment Tax Credit only if it was co-located with, and charged by, a qualifying solar facility. The Act removed that requirement. A standalone battery system now qualifies for the credit on its own, at a base rate of 30 percent of the qualifying investment where prevailing-wage and apprenticeship conditions are met, with bonus adders for domestic content, energy communities and low-income communities that can lift a well-structured commercial project toward a working ceiling of 50 percent.
The practical effect is straightforward: a large fraction of a project's cost can be recovered as a federal tax credit, which dramatically improves the economics of pure-play storage and expands the universe of projects worth building.
2. The credit can now be sold directly for cash
A credit is only useful to a party that has tax to offset. Historically, monetising energy tax credits meant assembling a complex "tax-equity partnership" with a bank or insurer, governed by multi-year allocation and flip arrangements — slow, expensive and available to relatively few counterparties.
Section 6418 of the Internal Revenue Code changed that. For the first time, the owner of the credit can simply sell it, for cash, to an unrelated corporate buyer with tax liability — a clean, bilateral transaction with no ongoing partnership. In current market conditions these transfers price at roughly 82 to 90 cents per dollar of credit for well-documented deals. The transaction is governed by Treasury's final regulations, and it requires pre-registration of each credit through the IRS's online portal before a valid transfer election can be made.
Why this matters to how capital is structured
Taken together, these two changes let a storage owner recover a substantial share of invested capital within the first year of a project — in cash, early, and without the complexity of a traditional tax-equity flip. That early recovery is what most reduces the risk of the equity position, and it is why a fund can be built around clean credit transfer as a core design principle rather than treating tax credits as an afterthought. It also means the depreciation benefits stay inside the project rather than being allocated away to an external tax-equity partner.
This article is a general explanation of public tax law and market practice. It is not tax, legal or investment advice, and it does not describe the terms of, or returns targeted by, any investment. Tax outcomes depend on the facts of each project and on law as it may change; consult your own advisers.