LEED v5 is already open for commercial projects, but the key date for developers and corporate real estate teams is July 1, 2027. From that date, LEED v5 will be the only version available for most new commercial BD+C, ID+C and O+M registrations, subject to limited exceptions. LEED v4 and v4.1 registrations for these systems close on June 30, 2027, while registered projects generally have until June 30, 2033 to reach certification.

The transition matters for AFS Commodities because LEED v5 strengthens the link between building certification and renewable energy procurement. The new framework places decarbonization at the centre of the rating system and creates more explicit requirements around renewable electricity, environmental attribute ownership, project location, certificate vintage and contract duration.

For project teams, renewable electricity procurement is no longer simply a question of buying enough RECs near the end of certification. The structure of the transaction can determine whether the renewable energy counts toward LEED.

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LEED v5 changes the role of renewable energy

USGBC identifies decarbonization as one of three central impact areas in LEED v5 and has introduced specific requirements for projects seeking Platinum certification.

For LEED v5 Core and Shell projects seeking Platinum, USGBC requires 100% of base-building energy use to come from a combination of Tier 1, Tier 2 and Tier 3 renewable energy. Platinum projects also face mandatory requirements covering electrification and enhanced energy efficiency.

This makes renewable procurement part of project planning. A developer targeting Platinum needs an energy strategy capable of covering building demand under the LEED rules rather than treating certificates as an optional purchase after construction.

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LEED now separates renewable procurement into tiers

The LEED v5 renewable energy structure distinguishes between different methods of sourcing renewable energy.

In the ID+C rating system, Tier 1 covers on-site renewable generation or qualifying social-impact projects. Tier 2 covers new off-site renewable electricity. Tier 3 covers off-site renewable energy, including renewable electricity that is Green-e Energy certified or equivalent and renewable fuels that are Green-e Renewable Fuels certified or equivalent.

LEED awards different levels of credit depending on the structure used. For ID+C projects, one point can be earned through Tier 2 procurement covering 20% of annual site energy, compared with Tier 3 procurement covering 50%. Two points require 40% through Tier 2 or 100% through Tier 3. Five points require 100% Tier 1 and/or Tier 2 renewable energy.

That creates a clear hierarchy. New off-site renewable electricity can contribute more strongly to certification than a conventional certificate-only strategy.

For buyers, this can influence the choice between a PPA, structured green electricity agreement and unbundled EAC procurement.

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New generation receives stronger treatment

Tier 2 is designed around new off-site renewable electricity.

Under the LEED v5 ID+C rules, qualifying Tier 2 electricity must come from a generation asset contracted to become operational within two years of building occupancy, or the contract must be signed no more than five years after the renewable asset's commercial operations date.

The age and development status of the underlying renewable project therefore become part of the procurement specification.

A buyer seeking stronger LEED value may prefer electricity or attributes associated with newer generation. Existing renewable projects can still contribute through Tier 3 where requirements are met, but they do not necessarily deliver the same certification value.

This can create differentiated demand between certificates that may otherwise look similar in the REC market.

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The environmental attribute must stay with the project

USGBC requires all environmental attributes associated with renewable energy used for LEED credit to be retired on behalf of the LEED project. That includes Energy Attribute Certificates and Renewable Energy Certificates.

A developer cannot rely on the fact that a PPA is linked to a wind or solar project if the associated RECs are sold elsewhere. The renewable attribute must be retained and retired for the LEED project.

The same issue applies to green electricity products. Buyers need to confirm whether the supplier is retiring qualifying certificates for the building rather than simply describing the electricity as renewable.

For AFS Commodities clients, transaction documentation therefore matters as much as certificate volume. Contracts need to identify who owns the EACs, how they are transferred, when they are retired and which project receives the claim.

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Location matters

LEED v5 also places geographic limits on qualifying procurement.

For the ID+C renewable energy credit, Tier 2 and Tier 3 renewable assets must be located in the same country or region as the LEED project.

A building cannot simply source the cheapest renewable electricity attribute available globally and assume that it will qualify. The procurement needs to match the geographic requirements of the project.

This is particularly relevant for multinational portfolios. Corporate Scope 2 procurement and LEED procurement may overlap, but they cannot automatically be treated as the same exercise.

The geographic requirement can also affect pricing. When buyers need certificates from a defined region, limited local supply can increase the value of qualifying attributes relative to certificates available elsewhere.

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Certificate vintage and contract length matter

LEED v5 also introduces specific timing requirements.

For the ID+C renewable energy credit, EACs credited to a project must have been generated no earlier than 18 months before the project's initial application submission date.

A company holding older REC inventory cannot assume that it will be suitable for a new LEED project. Project teams need to align certificate vintage and delivery with the certification timetable.

Contract length also matters. Under the ID+C credit, renewable energy procurement is based on a 10-year contract term. Shorter contracts can be used, but their contribution is prorated across the 10-year period.

This reduces the value of treating renewable procurement as a short-term annual exercise where a project is seeking maximum credit. A longer PPA or renewable supply agreement can have certification value as well as energy-price and environmental-attribute value.

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Developers have a decision to make before June 2027

LEED v5 is available now, but commercial projects can generally continue registering under LEED v4 or v4.1 until June 30, 2027. From July 1, 2027, LEED v5 becomes the only option for most new commercial BD+C, ID+C and O+M registrations.

Projects registered under v4 or v4.1 before the deadline can generally continue toward certification under those versions until June 30, 2033.

That creates a real project-development decision.

A project already designed around the older rating system may choose to register before the deadline. A project at an earlier stage may prefer v5 because its design and procurement can be built around the new requirements from the start.

Energy procurement teams should be involved before that decision is made. If a project is targeting high-level LEED v5 certification, renewable electricity requirements can affect project economics and contract structure well before occupancy.

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LEED can create demand for more specific RECs

The key environmental commodity implication is that LEED v5 does not treat every renewable MWh equally.

The framework distinguishes between on-site generation, new off-site projects and other off-site renewable supply. It requires environmental attributes to remain with the project and introduces criteria around geography, vintage and contract structure.

That turns renewable procurement into a specification-driven market.

A standard REC may have one value. A REC meeting a LEED buyer's location, vintage, certification and retirement requirements can have a different commercial value.

The potential volume is also meaningful. For Core and Shell projects pursuing Platinum, 100% of base-building energy use must be covered by qualifying renewable energy. Corporate tenants using ID+C may also need to coordinate building-level LEED procurement with wider corporate renewable electricity targets.

For traders and suppliers, this creates an opportunity to structure portfolios around the actual certification requirement rather than simply offering generic certificate volume.

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What buyers should do now

Developers and corporate occupiers considering LEED v5 should map renewable energy requirements during project design.

They should determine the intended certification level, forecast annual electricity and fuel consumption, and decide how much renewable energy should come from on-site generation, new off-site generation or Tier 3 instruments.

Any PPA or renewable electricity agreement should clearly state who retains the RECs or EACs. Certificate procurement should specify geography, generation vintage, certification requirements, delivery periods and retirement instructions.

Corporate sustainability teams should also compare LEED requirements with Scope 2 and renewable electricity targets. One transaction may support both objectives, but only if it satisfies the requirements of both frameworks.

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The commercial impact

LEED v5 creates a more direct link between green building certification and environmental commodity procurement.

The transition becomes unavoidable for most new commercial registrations from July 1, 2027. At the same time, renewable energy plays a more defined role, particularly for projects pursuing Platinum certification.

That can create additional demand for PPAs, renewable electricity supply agreements, RECs and other EAC structures that meet specific criteria around project age, geography, vintage, ownership and retirement.

For buyers, the question is no longer simply whether a certificate represents renewable electricity. The buyer needs to know whether that certificate fits the building, the LEED rating system and the intended certification level.

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AFS Commodities works with developers, property owners and corporate electricity buyers sourcing renewable electricity and environmental attributes. If your organization is preparing a project for LEED v5, reviewing renewable energy requirements or assessing REC and PPA options for a building portfolio, contact AFS Commodities to discuss market availability, certificate specifications and procurement structures that can support your certification strategy.