Buying 45X Advanced Manufacturing Production Credits & Due Diligence Considerations
A guide to buying §45X tax credits and conducting due diligence.
The IRA created a new clean energy tax credit, the §45X AMPC
The Inflation Reduction Act of 2022 introduced a new class of production tax credit — the §45X advanced manufacturing production credit (AMPC). The credit is for eligible components produced and sold after December 31, 2022 and is transferable under §6418.
The §45X tax credit is generated via the production and sale of:
- Sustainable energy components: Five categories of eligible sustainable energy components including solar modules, battery cells, or wind blades, nacelles, or towers
- Critical minerals: 50 applicable critical minerals that attain a specified purity level
A list of eligible components, critical minerals, and related tax credit amounts is included below.
§45X transfers have taken off since the IRS issued guidance in December 2023
In December 2023, the Department of the Treasury released proposed regulations on §45X tax credits, which opened the door for transactions to begin.
Notably, Fiserv (NYSE: FI) agreed to purchase $700M in §45X tax credits from First Solar (NASDAQ: FSLR) at a price of $0.96 per dollar of credit, resulting in $28M of tax savings for the 2023 tax year. The public announcement of a large-scale transaction has led to significant interest from corporate buyers in §45X tax credits.
Key characteristics of §45X AMPCs
Generated over time
§45X AMCPs are generated on a rolling basis from the (i) production and sale of eligible components or the (ii) conversion of critical minerals to a specific purity level. As we'll discuss below, this opens the door for buyers to negotiate quarterly or monthly payment terms.
No recapture risk or prevailing wage and apprenticeship requirement
There is no recapture or prevailing wage and apprenticeship (PWA) provision, reducing risk associated with §45X tax credits.
Eligible for direct pay or transfer
As with §45Q and §45V credits, generators of §45X credits may elect to be treated as an “applicable entity” for the limited purpose of making an elective payment election, also known as direct pay.
Careful consideration should take place before electing in or out of direct pay for §45X credits. The election is rigid in that there are no partial elections:
- The election applies to all eligible credits from the applicable facility, and
- The election applies to the entire taxable year for which the election was made and all subsequent taxable years ending before January 1, 2033
Additionally, an electing taxpayer may file an irrevocable election to revoke the elective payment, but the revocation applies to the entire taxable year in which the election to revoke takes place and all subsequent taxable years remaining before January 1, 2033.
In short, AMPC generators may elect to take five years of direct pay with the IRS or transfer the credits to another taxpayer, and the ability to do both is significantly limited.
Commercial guidelines for buyers of transferred §45X tax credits
Sellers
Sellers of §45X tax credits range from large, multinational companies to smaller, domestic producers. Tax credit buyers may require sellers to procure tax credit insurance if there is uncertainty around their longevity and/or ability to cover indemnities relating to the sale of credits.
"Unaffiliated third party" buyers
In order to generate AMPCs from the production and sale of eligible components, buyers of manufactured components must be unaffiliated third parties unless a related party election has been made under §45X(a)(3)(B).
All sales must be for “productive purposes” and not solely to claim the §45X tax credit.
Pricing
In Q1 2024, median pricing to buyers ranged from $0.91 to $0.95 for single-year 45X credits. The relatively high pricing reflects the lower risk profile of AMPCs compared to investment tax credits (ITCs).
Drivers of larger price discounts include smaller transaction sizes, less established sellers, and forward contracts for credits that have not yet been generated.
Payment terms
AMPCs are sold in arrears of generation. Unless the AMPCs are sold in a single closing, most sellers will accept quarterly or monthly payment terms, allowing buyers to recognize the value of the credit before issuing payment to sellers.
Due diligence checklist for §45X tax credits
While §45X credits are not subject to PWA requirements and do not carry the same recapture or basis-related qualification risks as §48 ITCs, they do carry additional qualification risks that are absent from other, power generation-related tax credits such as the §45 production tax credit (PTC).
Buyers and their advisors should conduct due diligence on several core aspects of §45X tax credit qualification to avoid a situation where credits are improperly accounted for and subsequently disqualified — a risk that flows through to the buyer in a transferability transaction.
Diligence point | Required documentation | Explanation |
---|---|---|
Correct credit amount | Description of component type with technical specifications; copies of audited production and sales volumes. | Section §45X provides a list of eligible components, their associated AMPC amount, and any design parameters / capacity limits that are required to qualify for credits. The production of eligible components must be completed in 2023 or later, and the tax year where credits may be claimed is driven by the year in which the sale is completed. |
Ensure components were “produced by taxpayer” | Third-party verification that the seller conducted “substantial transformation” of the related components. Copies of any contract manufacturing agreements. | The credit is awarded only to the taxpayer who conducted the “substantial transformational” in a trade or business of the taxpayer. The regulations differentiate between “substantial transformation” versus “mere assembly” where the former is required to claim a credit. Parties to a contract manufacturing arrangement may choose who claims the credit by signed agreement prior to the completion of eligible components. |
Domestic production | Documentation of the physical location where the eligible component was produced. | Only eligible components produced in the United States and its territories are eligible for a tax credit. Elements, sub-components, and materials used in the product of an eligible component are not subject to the domestic requirement. |
No §48C investment tax credits | Confirmation the facility is not claiming §48C investment tax credits anywhere in the assembly line for the §45X components. | Facilities that claim §48C investment tax credits are only eligible for AMPCs if the assembly line for §45X eligible components operates independently from the §48C assembly line or factory. |
Third-party sale for productive purposes | Confirmation that components are sold, for a productive purpose, to third parties, or that a valid “related person election” is/will be filed with the IRS. | Generally, §45X tax credits are only generated upon component sales to a third-party, so a sale to an affiliate would not generate a tax credit until subsequent resale by the affiliate to a third party. An annual election can be made with the IRS to treat an affiliate as a third party for purposes of determining §45X tax credits. |
Eligible components and related §45X tax credit amounts
The table below shows the eligible components that qualify for §45X credits as well as the amount of tax credit.
Solar energy components
Eligible Component | Value per Unit | Unit |
---|---|---|
Thin film or crystalline photovoltaic cell | $0.04 | Capacity in Wdc |
Photovoltaic wafer | $12.00 | Square meter |
Solar-grade polysilicon | $3.00 | Kilogram |
Polymeric backsheet | $0.40 | Square meter |
Solar module | $0.07 | Capacity in Wdc |
Wind energy components
Eligible Component | Value per Unit | Unit |
---|---|---|
Related offshore wind vessel | 10% | Sales price of vessel |
Blade | $0.02 | Watt of completed turbine capacity |
Nacelle | $0.05 | Watt of completed turbine capacity |
Tower | $0.03 | Watt of completed turbine capacity |
Offshore wind foundation using fixed platform | $0.02 | Watt of completed turbine capacity |
Offshore wind foundation using floating platform | $0.04 | Watt of completed turbine capacity |
Torque tube and structural fastener components
Eligible Component | Value per Unit | Unit |
---|---|---|
Torque tube | $0.87 | Kilogram |
Structural fastener | $2.28 | Kilogram |
Inverter components
Eligible Component | Value per Unit | Unit |
---|---|---|
Central inverter | $0.0025 | AC watt capacity |
Utility inverter | $0.015 | AC watt capacity |
Commercial inverter | $0.02 | AC watt capacity |
Residential inverter | $0.065 | AC watt capacity |
Microinverter or distributed wind inverter | $0.11 | AC watt capacity |
Electrode active materials
Eligible Component | Value per Unit | Unit |
---|---|---|
Electrode active materials | 10% | Costs incurred by the taxpayer with respect to the production of electrode active materials |
Battery components
Eligible Component | Value per Unit | Unit |
---|---|---|
Battery cell | $35.00 | Capacity in kWh (limitations apply - see instructions to IRS Form 7207) |
Battery module which uses battery cells | $10.00 | Capacity in kWh (limitations apply - see instructions to IRS Form 7207) |
Battery module which does not use battery cells | $45.00 | Capacity in kWh (limitations apply - see instructions to IRS Form 7207) |
Critical minerals
For critical minerals, the tax credit value is 10% of the production cost. §1.45X-4 of the proposed regulations clarifies what costs are includable or excludable in the 10% calculation.
Aluminum | Antimony | Arsenic |
Barite | Beryllium | Bismuth |
Cerium | Cesium | Chromium |
Cobalt | Dysprosium | Erbium |
Europium | Fluorspar | Gadolinium |
Gallium | Germanium | Graphite |
Hafnium | Holmium | Indium |
Iridium | Lanthanum | Lithium |
Lutetium | Magnesium | Manganese |
Neodymium | Nickel | Niobium |
Palladium | Platinum | Praseodymium |
Rhodium | Rubidium | Ruthenium |
Samarium | Scandium | Tantalum |
Tellurium | Terbium | Thulium |
Tin | Titanium | Tungsten |
Vanadium | Ytterbium | Yttrium |
Zinc | Zirconium |
Subject to a four-year phase-out (except for critical minerals)
With the exception of critical minerals, the amount of credit begins phasing out for sales occurring after December 31, 2029. As a result, the amount of tax credit is 75% for components sold during calendar year 2030, 50% for components sold during calendar year 2031, 25% for components sold during calendar year 2032, and 0% thereafter.
Learn more
Reunion is actively transferring §45X tax credits from a variety of clean energy manufacturers. To learn more about sourcing, diligencing, and purchasing §45X AMPCs, please contact Reunion's experienced transactions team.
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Novogradac Journal of Tax Credits | December 2024 | Volume XV | Issue XII
RETC Transfers Boom Throughout 2024, Including Community Solar Portfolio in Virginia
Nick DeCicco, Senior Writer, Novogradac
Transfer of federal renewable energy tax credits (RETCs) exploded in 2024, according to professionals in the field, including a team who transacted in August on a portfolio of community solar systems in Virginia.
Reunion Infrastructure teamed earlier this year with Summit Ridge Energy, a commercial solar company based in Arlington, Virginia, to facilitate the transfer of $40 million in investment tax credits (ITCs) to a privately held real estate company.
The transaction is the wheelhouse of Reunion, a San Francisco-based clean energy finance company that has closed more than $2.5 billion in transfers as of early November. The firm has facilitated transfer transactions of ITCs, production tax credits (PTCs), Section 45X and Section 30C credits varying in size from under $10 million to more than $500 million, said Billy Lee, co-founder and president of Reunion.
“We’re seeing a lot of activity, both large and small deals,” said Lee. “One of the beauties of transferability is that it levels the playing field. For example, small developers who have projects generating relatively small volumes of credits are still able to get deals completed efficiently."
Lee said the Virginia portfolio buyer is a “sophisticated investor and and has a keen interest in community solar.” Jake Compton, Summit Ridge Energy’s senior director of project finance, said the systems are in varying stages of completion, with some already online and others slated to come online before year’s end as well as into 2025.
Compton said the Virginia portfolio was not Summit Ridge’s first transfer, although it did fall within the first batch of the company’s transfers.
“It was in parallel with a few others,” Compton said. “This one was appealing for a couple of reasons. The buyers had the opportunity to think about this as a long-term partner. We were also able to pair this with an existing tax equity investment in the portfolio and do a hybrid of tax equity and transfer in [the] same transaction.”
Content with domestic content
Having an existing tax equity partner who liked the Virginia market combined with the transfer buyer and the opportunity to expand the tax equity investment was a winning combo, said Compton.
“Our investment will be exclusively providing energy to low-income households throughout the state,” said Compton. “Our goal as a company is to do exactly that. ... It’ll let us continue to expand our footprint.”
The transaction also was one of Summit Ridge’s first to apply domestic content adder guidance from the Inflation Reduction Act of 2022. The expansion of solar cell manufacturer Hanwha Qcells Co.’s facilities increased the supply of American-made solar cells for projects such as Summit Ridge’s Virginia portfolio. Compton said the increase in output of cells, combined with clarification from the Internal Revenue Service and the Department of Energy about the domestic content regulations, allowed Summit Ridge to “cement (its) plans” to deploy 800 megawatts of Hanwha’s Qcells.
“If I look at projections of the need for tax investment, the tax equity market alone just can’t keep pace with the available credits from these projects,” said Compton. “Reunion estimated $22 billion of tax equity this year, but out of a total market appetite of $45 billion. Other groups have come up with very similar projections. That’s a great problem to have, so for us, it’s a ‘yes, and’ strategy – to meet our ambitious goals of expanding community solar and access to clean energy for all, we’re going to need all of both the tax equity and tax credit transfers that we can arrange.”
A learning curve
Lee and Compton said education is an important component of RETC tax credit transfers.
Compton said many tax credit transfer buyers are new to the RETC market, bringing a need to learn about the nuances of the process as well as a desire for a low-touch transfer.
“They may have different concerns than we’re used to with a more typical equity investor,” said Compton.
Lee outlined a two-stage process for most transfers: Educating taxpayers about the overall transfer opportunities and then guiding participants through the transaction process, from term sheet to closing.
“We spend a significant amount of time getting buyers 'transaction ready,' which often includes getting internal stakeholders up to speed and ensuring approvals are in place," said Lee. "At that point, we start sharing opportunities that fit the buyer's specific requirements. Our buyers are busy finance and tax professionals, so we provide a very curated approach. We can provide a lot of insights and market data to help buyers differentiate deals that, on the face of it, may appear to be very similar."
Lee said Reunion weighs factors beyond the headline credit amount and price, factoring in seller motivation, urgency, competitive dynamics, and other more qualitative aspects.
“We want to make sure we are truly giving them opportunities that fit their needs and align with their expectations,” said Lee.
Moving buyers and sellers through the process is one area where Lee and Reunion’s experience and history in renewable energy is valuable. Lee said the company brings a “deep data set” that informs commercial terms, structuring of indemnities and insurance, and more. He said Reunion also provides a due diligence review for buyers to help streamline their evaluation of the transaction.
“For sellers, the value we bring is certainty and speed of execution,” said Lee. "Critically, we have direct relationships with tax credit buyers, which gives us insights into the priorities and the readiness of the buyers." Lee said the timing from term sheet to close for most transfers that Reunion participates in is measured in weeks, which differs from many RETC transactions, for which a standard transaction is about six months.
Most buyers want to do one or two transfers transactions per year and move on, Lee said.
"Finding a buyer and seller who want to transact on a similar amount of credits is only part of the challenge," said Lee. "Buyers have varying requirements: some want PTC or 45X. Some want ITC. Some want insurance, while others want a creditworthy or investment-grade seller. Some are comfortable with higher basis step-ups assuming risk mitigation measures are in place, while others are not. There are a lot of factors in finding the right buyer and seller in order to complete a successful transaction."
Evolution of transfers
Lee said there was “a pioneering aspect” to taking on transfer deals earlier this year when the opportunity was fresher. As the year progressed, Lee said the transaction process has become more efficient. Many transfers require only a few major transaction documents, including the tax credit purchase agreement, an insurance policy (if required) and a guaranty agreement (if required). Lee said Reunion’s goal is to continue to streamline transactions and take a lot of friction out of transfer transactions for buyers and sellers.
"The amount of hours needed to transact on one of these transactions is fairly limited," said Lee. "We have a finely tuned playbook on what the buyer and sellers need to do to get a deal done. We're getting pretty good at identifying and resolving any issues early in the deal process, as opposed to at the 11th hour."
Although the Virginia deal was a mid-sized deal in the pantheon of Reunion's experience, Lee said the challenges and complexities of transfers don't necessarily grow with scale.
"We don't see a huge correlation between size and deal complexity," said Lee. "Some of our most challenging deals are really small."
Likewise, Lee said larger developers are not always the most sophisticated, noting some experienced sellers are relatively inexperienced in transfers and need a fair amount of hand-holding while some smaller developers are highly sophisticated and much more transaction ready.
"Right now, there is no rule of thumb in terms of what deals are more challenging or more complex than others," said Lee. "That's where we step in and provide guidance and support."
Into the future
Lee said those considering transfer transactions such as the Virginia community solar portfolio should know that transferability still benefits from the guidance of deal teams that have deep transaction experience.
"There's still a lot of detail and nuance to deals," said Lee. "Particularly for first-time buyers and sellers, having a transaction partner who can identify risk and has the experience to structure solutions that properly mitigate and allocate that risk will significantly increase the likelihood of a successful transaction."
Compton expressed excitement for the future possibilities of transfers.
"The transfer market opens up an enormous aperture of the pot of investors to get involved with projects," said Compton. "It's created its own set of challenges and nuances. It's certainly interesting to see how it evolves. Everyone has tax equity as reference points. This arose as a unique animal in response to its own quirks. It's fascinating to see how the market evolves. Does it stay very close to tax equity, which is kind of a reference point? Or will it look and feel like something different? There's a lot of reasons to be doing transfers."
Copyright Novogradac 2024 - All Rights Reserved
This article first appeared in the December 2024 issues of the Novogradac Journal of Tax Credits. Reproduction of this publication in whole or in part in any form without written permission from the publisher is prohibited by law.
Notice pursuant to IRS regulations: Any discussion of U.S. federal or state tax issues contained in this article is not intended to be used, and cannot be used, by any taxpayer for the purpose of avoiding penalties under the Internal Revenue Code; nor is any such advice intended to be used to support the promotion or marketing of a transaction. Any discussion on tax issues reflected in the article are not intended to be construed as tax advice or to create an accountant-client relationship between the reader and Novogradac & Company LLP and/or the author(s) of this article, and should not be relied upon by readers since tax results depend on the particular circumstances of each taxpayer. Readers should consult a competent tax advisor before pursuing any tax savings strategies. Any opinions or conclusions expressed by the author(s) should not be construed as opinions or conclusions of Novogradac & Company LLP.
This editorial material is for informational purposes only and should not be construed otherwise. Advice and interpretation regarding property compliance or any other material covered in this article can only be obtained from your tax advisor. For further information, visit www.novoco.com.
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The IRA has fueled clean energy deployment
The Inflation Reduction Act has had a significant impact on clean energy deployment in the U.S., leading to accelerated growth among solar, wind, battery storage, and other clean energy technologies:
- The two-year post-IRA period has seen $89 billion in investment in new, US-based clean energy manufacturing, versus $22B in the two years preceding the IRA (see Figure 1)
- Investment in clean energy production and industrial decarbonization is $161 billion since the passage of the IRA, a 43% increase from the comparable pre-IRA period
Americans overwhelmingly support clean energy
Clean energy is now a major part of the US economy, employing over 3.5 million workers. Since 2020, the clean energy industry has added 400,000 new jobs, significantly outpacing the rest of the energy sector.
The federal solar investment tax credit was first passed under the George W. Bush administration via the Energy Policy Act of 2005, and for the last 20 years there has been a looming threat that this tax credit will be removed. But it has persisted, because it has been highly effective in driving solar adoption, and solar energy is extraordinarily popular among Americans.
The IRA has growing, bipartisan support
Similarly, the Inflation Reduction Act has bipartisan support:
- In August 2024, a group of 18 Republican Congress members wrote to a letter to Speaker Mike Johnson saying: “Prematurely repealing energy tax credits, particularly those which were used to justify investments that already broke ground, would undermine private investments and stop development that is already ongoing.” Speaker Johnson responded that when making changes to the IRA, “you’ve got to use a scalpel and not a sledgehammer.”
- The total clean investment of $493 billion in the two-year post-IRA period has flowed into all 50 states, but over half of that has gone to Republican states
We have reason for optimism that the major provisions in the Inflation Reduction Act will persist. It’s unlikely that a majority of Congress will support a significant repeal of a law that is driving new jobs and significant investments in clean energy. Repealing the IRA after it has been in force for over two years will also upend many private businesses, which have made billions in investments under the anticipation that the law will be in force for a decade, if not substantially longer.
Furthermore, the final house race was called December 2nd, landing at 220 Republican seats and 215 Democrat seats. Given that 218 votes are required to form a majority and pass legislation, Republicans have a very thin margin for defections - only two.
Buyers and sellers remain active in the market for 2025 tax credit and beyond
In the tax credit transfer space, we continue to see a heavy dose of activity that is, in fact, ramping up, particularly from buyers wanting to lock in 2024 and 2025 tax credits before any potential changes.
The team at Reunion remains highly optimistic about a clean energy future and stand ready to support all existing and new customers.
Read more
On October 24, 2024, the Department of Treasury and the Internal Revenue Service (IRS) issued final regulations for the Advanced Manufacturing Production Credit (§45X). The final regulations were published in the Federal Register on October 28, 2024 and are largely consistent with the proposed regulations issued on December 15, 2023.
Noted below are key changes as well as clarifying guidance that were issued in the final regulations. Jump to a section:
For a primer on 45X credits and due diligence, please refer to our insights here.
Distinguishing "minor assembly"
The final regulations replace each instance of "mere assembly" with "minor assembly" to clarify what activities meet the substantial transformation threshold required to qualify for §45X tax credits.
The guidance recognizes that certain eligible components such as a solar module or a battery module are produced primarily by assembling other components. In these cases, the assembly required to achieve production of the ultimate eligible component (solar module or battery module) should not generally be viewed as disqualifying “minor assembly.”
Furthermore, eligible components that have completed substantial transformation, are considered “produced by the taxpayer,” and have been produced and sold to a third-party, in which only “minor assembly” remains, does not disqualify the original party from claiming the §45X credit. As a result, the ensuing third-party who performs the “minor assembly” would not be eligible to claim the credit.
Production costs expanded for critical minerals and electrode active materials
The final guidance is intended to recognize the value of material costs while addressing concerns regarding multiple-crediting and unintended incentives. The proposed regulations did not specifically allow direct material costs, indirect material costs, or any costs related to the extraction or acquisition of raw materials to be considered as production costs. However, the Treasury Department and the IRS, after consultation with the Department of Energy, have reconsidered the proposed exclusion of all material costs based on comments received and revised the regulations to include extraction costs for raw materials sourced in the U.S. or its territories if incurred by the taxpayer claiming the credit.
Additionally, if a taxpayer acquires extracted raw material as a direct (or indirect) material cost, the material costs may be included as production costs consistent with the rules provided under section 263A regardless of whether the extracted material is domestic or foreign-sourced.
Furthermore, any inclusion of direct and indirect material costs may be included if certain conditions are met, but only if they are not for materials that are already an eligible component at the time of purchase (e.g., applicable critical mineral or electrode active material), and as such, an additional credit cannot be claimed on costs relating to the acquisition and use of other eligible components.
See also "Additional substantiation requirements for critical minerals and electrode active materials."
Additional substantiation requirements for critical minerals and electrode active materials
In order to include direct or indirect materials costs as production costs when calculating a §45X credit for the production and sale of critical minerals or electrode active materials, a taxpayer must include certifications from each supplier, as an attachment to the tax return, and maintain specific books, records, and documentation to substantiate the credit.
The certifications must include the supplier’s employer identification number, be signed under penalties of perjury, and state that the supplier is not claiming a §45X credit for the materials purchased, nor is the supplier aware of any prior supplier claiming a §45X credit in the chain of production for the materials.
The books, records, and documentation requirements include, whether prepared by the taxpayer or (ideally) a third-party:
- An analysis of any constituent elements, materials, or subcomponents that concludes the material did not meet the definition of an eligible component (for example, an applicable critical mineral or electrode active material) at the time of acquisition by the taxpayer
- A list of all direct and indirect material costs and the amount of such costs that were included within the taxpayer’s total production cost for each applicable critical mineral
- A document related to the taxpayer’s production activities with respect to the direct and indirect material costs that establishes the materials were used in the production of the applicable critical mineral
Failure to provide this documentation with the return filing, or failure to provide an “available upon request” statement, would constitute a failure to substantiate the tax credit claim.
Definition of produced by the taxpayer
The final regulations expanded the definition of “produced by the taxpayer” to confirm that taxpayers may produce eligible components using recycled materials (secondary production). The updated definition now reads, “Primary production involves producing an eligible component using non-recycled materials while secondary production involves producing an eligible component using recycled materials.”
Clarification on §45X vs §48C facility
The final regulations simplified the definition of a §45X facility, replacing the term “production unit” with “independently functioning tangible property” that is used and necessary for the eligible component to be considered produced by the taxpayer, regardless of physical location. Accordingly, tangible property used to produce a subcomponent which is later integrated, incorporated, or assembled into a distinct and final eligible component may not be part of the section 45X facility.
This clarification allows the use of subcomponents manufactured at a separate §48C facility without tainting the ability to qualify for a §45X credit, as long as the subcomponent is not part of the determination that the taxpayer is the producer of the eligible component.
The final regulations also added a specific rule to address §48C taints in a contract manufacturing arrangement - the tangible property determination for a 45X facility would apply to either party in the transaction, regardless of which party to the contract manufacturing arrangement is claiming the credit.
Effective date
December 27, 2024
Applicability dates
As noted in § 1.45X–1(j), §1.45X–2(f), §1.45X–3(g), and §1.45X–4(d), these final regulations apply to eligible components for which production is completed and sales occur after December 31, 2022, and during taxable years ending on or after October 28, 2024.
Taxpayers may choose to apply these regulations to eligible components for which production is completed and sales occur after December 31, 2022, and during taxable years ending before October 28, 2024, provided that taxpayers follow these regulations in their entirety and in a consistent manner.
Additionally, §5.05(2) of Notice 2023–18 and §3 of Notice 2023–44, which relate to the interaction between §45X and §48C, are superseded for eligible components for which production is completed and sales occur after October 28, 2024.
Appendix 1 — Additional technology-specific changes
Clarification on tandem cells
The final regulations addressed commenters concerns regarding disparate treatment between different types of tandem cells and the resulting capacity and credit amount. The Treasury Department and IRS agreed with commentators, and to prevent potentially incentivizing the development of certain tandem technology, added additional text for cells that are either mechanically stacked or using interconnected layers: “Where that cell is sold to a customer who will use it as the bottom cell in a tandem module, its capacity should be measured with the customer’s intended top cell placed between the bottom cell and the one-sun light source.”
Definition of "polymeric backsheet"
The final regulations clarify that the definition is limited to a sheet on the back of solar modules composed, at least in part, of a polymer, that acts as an electric insulator and protects the inner components of such module from the surrounding environment. This added definition for "polymeric" excludes most glass backsheets because they are typically not composed of a polymer, but of soda-lime glass.
Solar grade polysilicon measurement standards
The final rules added that satisfaction of the minimum purity requirement will be determined in accordance with the standards provided in SEMI Specification PV17-1012 Category 1. This standard also provides additional clarification by including guidance to distinguish between material and immaterial impurities.
Determining credits from related offshore wind vessels
§1.45X-3(c)(4)(ii) was revised to include the application of Federal income tax principles to determine inclusions and exclusions for the sales price used to calculate the §45X credit for offshore wind vessels.
Additional standards allowed to certify rated capacity of completed wind turbines
The final regulations revise proposed §1.45X-3(c)(6) to add both AWEA 9.1-2009 and ANSI/ACP 101-1-2021 as acceptable wind turbine certification standards.
Clarification to DC optimized microinverter systems
§1.45X-3(d)(5)(iv)(B) requires that the inverter and DC optimizer in the DC optimized inverter system to be produced and sold as a combined end product. The Treasury Department and the IRS retained this rule while also clarifying that the inverter and the DC optimizer do not need to be physically packaged together at sale, and the inverter and DC optimizer do not need to be fully interconnected and assembled at the time of sale.
No separate credit is created solely for a DC optimizer, and no changes were made to the number of inverter units used to compute the available credit amount, as these changes are beyond the authority of the Treasury Department and IRS.
Battery cell energy density requirements refer to volumetric energy density
When determining if a battery cell has an energy density of not less than 100 watt-hours per liter, the final regulations clarify that energy density is referring to volumetric energy density in §1.45X-3(e)(3)(i)(B) (e.g., as opposed to gravimetric, mass-based, energy density).
Clarification on modules using battery cells
Many commenters expressed concerns regarding the proposed regulations which would not have permitted a credit for the production of a module that is not the end-use configuration. Other commenters acknowledged that the proposed regulations could create confusion as the definition of battery module could potentially include items that are referred to in the industry as “battery packs.”
To address this confusion, §1.45X-3(e)(4)(i)(A) of the final regulations:
- Redefine an end-use configuration as “the product that ultimately serves a specified end use combines cells into a module such that any subsequent manufacturing is done to the module rather than to the cells individually”
- Clarify that “where multiple points in a supply chain may be eligible under this section, the first module produced and sold that meets the requirements of this section and the kilowatt-hour requirement in paragraph (e)(4)(i) of this section will be the only module eligible”
Clarification on modules not using battery cells for thermal and thermochemical battery technology
Taxpayers producing thermal and thermochemical battery modules with no battery cells must convert the energy storage to a kilowatt-hour basis, provide both the methodology and testing regarding this conversion, and maintain this testing as part of its books and records.
Additionally, the kilowatt-hour conversion cannot exceed the direct conversion of the total nameplate capacity of the thermal battery module to kilowatt-hours (the capacity that is sold to the consumer), and the taxpayer claiming the §45X credit must use the same methodology consistently, subject to any updated standard of the same methodology and testing, for all battery modules (with or without cells) sold in the taxpayer’s trade or business. The final regulations incorporate these clarifications in §1.45X-3(e)(4)(ii).
Additional guidance forthcoming for aluminum
As noted in the Summary of Comments and Explanation of Revisions, a number of comments were received regarding additional clarification for the definition of aluminum, and the Treasury Department and the IRS have determined that additional consideration is necessary prior to finalizing proposed §1.45X-(b)(1) with respect to this definition.
Appendix 2 — Additional contract manufacturing and relation person election changes
Additional critical minerals use case for contract manufacturing
The final regulations also added an additional contract manufacturing example to demonstrate a way to structure and claim a tax credit on initial extracting and refining activities that do not meet the minimum purity levels required for an eligible component until the initial materials are later purchased, completed, and sold.
Anti-abuse rule measured at point of sale for Related Person Election
The final regulations added a clarification regarding defects with regard to a related person election. If an eligible component is not defective at the time of sale, defects arising after the point of sale may occur in the ordinary course of a business and do not generally raise the improper claim concerns regarding defective components.
Appendix 3 — Select items upheld in final regulations
Confirmation of the scope for domestic production and use
The final regulations adopted the proposed rules that require eligible components to be produced within the United States, whereas constituent elements, materials, and subcomponents used in the production of the eligible components are not subject to a domestic production requirement.
In addition, the eligible components do not ultimately have to be used in the United States for §45X eligibility.
Production efforts required to stack or claim additional credits for integral components that are also eligible components
The final regulations upheld the temporary regulations perspective that a taxpayer must produce (rather than merely purchase or acquire) an eligible component that it then integrates, incorporates, or assembles into another eligible component that is then sold to an unrelated person in order to claim credits on both components.
No additional credits for defective units that are subsequently replaced
A commenter proposed that eligible components that were used to replace defective units pursuant to a contractual obligation do not appear to violate proposed anti-abuse provisions. However, the final regulations confirmed the replacement of a defective unit does not represent a new sale to an unrelated person, and §45X does not incentivize the production of two eligible components related to a single sales transaction.
Rejection to expand eligible components and applicable critical minerals
Commenters requested to expand the list of eligible components and applicable critical minerals, but the Treasury Department and the IRS declined, citing the lack of statutory authority to expand the list.
Rejection of proposed safe harbor for contract manufacturing arrangements
The Treasury Department and the IRS declined a commenter’s request to establish a safe harbor for contract manufacturing agreements in place before the applicability date of the proposed regulations.
However, a taxpayer may still elect to apply the special rule (§1.45X-1(c)(3)(iii)), which allows the parties of a contract manufacturing arrangement to agree on which party to the contract will claim the credit.
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Drawing on over $10B of verified transactions, our report takes a deep dive on the Section 48 investment tax credit, Section 45 production tax credit, and Section 45X advanced manufacturing production credit. We also examine emerging market trends and deal dynamics.
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