Understanding the GHG Protocol’s Scope 2 Hourly Matching Proposal

The GHG Protocol’s proposed updates to Scope 2 accounting would require electricity consumption and clean generation to be matched on an hourly basis within defined market boundaries, a structural shift away from annual matching. If adopted as drafted, the proposal would significantly alter reported clean electricity outcomes and the effectiveness of existing procurement strategies. This white paper analyzes how load profiles, renewable portfolios, and procurement instruments perform under hourly matching and identifies practical, portfolio‑based approaches to improve outcomes without operational disruption.

The GHG Protocol’s proposed updates to Scope 2 accounting would require electricity consumption and clean generation to be matched on an hourly basis within defined market boundaries, a structural shift away from annual matching. If adopted as drafted, the proposal would significantly alter reported clean electricity outcomes and the effectiveness of existing procurement strategies. This white paper analyzes how load profiles, renewable portfolios, and procurement instruments perform under hourly matching and identifies practical, portfolio‑based approaches to improve outcomes without operational disruption.

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You will learn how to:

  • Assess how your current renewable electricity strategy would perform under hourly matching rule.
  • Understand the tradeoffs between PPAs, unbundled EACs and diversified portfolio construction.
  • Identify why load shape now drives Scope 2 outcomes more than annual volume.
  • Evaluate whether aggregated procurement could materially improve matching efficiency and reduce over-procurement.

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