Big Tech Divides Over Proposed Changes to Clean Energy Accounting Rules

Major technology companies are split over a proposed shake-up of clean energy accounting rules that could reshape how businesses report emissions from the electricity they buy.

The debate centres on Scope 2 emissions, which cover emissions from purchased electricity, steam, heat and cooling. The Greenhouse Gas Protocol, the widely used corporate emissions accounting framework, is considering changes to its Scope 2 guidance, which has not had a major update since 2015. The current guidance standardizes how companies measure emissions from purchased or acquired energy, including electricity, steam, heat and cooling.

Under current practice, companies can often claim 100% renewable electricity use by matching their annual power consumption with an equivalent amount of renewable energy procurement or renewable energy certificates. That approach has helped accelerate corporate demand for clean power, particularly through power purchase agreements and energy attribute certificates. However, critics argue that annual matching can obscure whether clean energy is actually available where and when a company consumes electricity.

Reuters reported that a GHG Protocol working party has proposed moving toward a more granular framework, where renewable electricity claims would more closely reflect the time and location of power use. The proposal has divided large corporate energy buyers, including major technology companies whose data centres are driving rapid growth in electricity demand.

Granular Accounting Versus Impact Accounting

The core disagreement is not whether companies should buy clean energy, but how the climate impact of that procurement should be counted.

Google and Microsoft are among the companies supporting more granular accounting, which would require companies to match electricity consumption with clean electricity generation more closely by hour and grid location. This is linked to the concept of 24/7 carbon-free energy, where each unit of electricity demand is matched with carbon-free power generated at the same time. Eurelectric describes 24/7 carbon-free energy matching as an approach where electricity demand is matched with an equivalent volume of carbon-free energy generated and injected at the same time.

Google has been one of the most prominent corporate advocates of hourly clean energy matching. The company has said its 24/7 carbon-free energy strategy is designed to move beyond annual renewable matching and assess how much of its electricity use is covered by clean power in each region and hour.

Other companies, including Meta, Amazon and Salesforce, support an alternative approach often described as impact accounting. That model places more emphasis on whether clean energy procurement displaces higher-emitting power generation, especially in regions where electricity grids are dirtier, and additional renewable projects may deliver larger emissions reductions. Reuters reported that supporters of this approach argue it could direct capital to regions where new clean energy investment has the greatest climate benefit.

Why the Issue Matters for Net-Zero Claims

The accounting debate has practical implications for corporate climate targets, renewable energy markets and investor confidence.

Under annual matching, a company may buy enough renewable energy certificates over a year to equal its total electricity consumption, even if some of that clean power was generated at different times or in different regions from where the company’s operations used electricity. This can create a gap between reported renewable electricity use and the physical reality of power consumption on local grids.

More granular accounting would make that gap more visible. For companies with energy-intensive operations, especially data centres, it could raise reported Scope 2 emissions unless they procure clean electricity that matches their real-time consumption more closely. It could also increase demand for storage, demand flexibility, clean firm power, regional renewable projects and digital systems that track electricity attributes by hour.

For investors and sustainability analysts, stricter Scope 2 accounting could improve comparability between companies. Reuters reported that investors, including ShareAction and Sarasin & Partners, support greater transparency, arguing that more accurate electricity accounting would help assess whether corporate climate claims reflect real emissions reductions.

The proposal is also relevant because artificial intelligence and cloud computing are increasing electricity demand from data centres. As large technology companies expand computing capacity, their ability to secure clean, reliable and location-matched electricity is becoming a more important part of corporate decarbonization strategies.

Concerns Over Cost, Complexity and Renewable Deployment

Opponents of stricter hourly and locational accounting argue that the proposed changes could increase compliance costs and make clean energy procurement more complex. Some industry groups and market participants warn that if companies can no longer rely on annual renewable energy certificates in the same way, demand for some existing clean energy products could weaken.

Reuters reported that organizations including REsurety and the U.S. National Association of Manufacturers have raised concerns that the changes could increase costs, add administrative burden and potentially slow renewable energy growth.

The concern is particularly relevant for smaller companies, which may lack the resources to manage hourly electricity data, negotiate complex power contracts or procure clean energy in every operating region. A stricter system could also create differences between companies with large energy teams and those that rely mainly on standard renewable certificates or utility green tariffs.

Supporters of reform counter that current rules may overstate progress and weaken incentives to decarbonize electricity use at times when fossil generation remains on the grid. They argue that better accounting would push companies to support cleaner electricity systems more directly, rather than relying on broad annual matching.

Implications for Companies and Energy Markets

For corporate sustainability teams, the proposed Scope 2 update signals that clean electricity claims may face closer scrutiny. Companies with 100% renewable electricity claims may need to assess whether those claims remain robust under more granular accounting. This includes reviewing where renewable certificates are sourced, whether power purchase agreements are linked to the same grids where electricity is consumed, and how electricity use varies across hours and seasons.

For energy suppliers and software providers, the debate could accelerate demand for more detailed electricity tracking. Hourly matching requires more granular data on consumption, generation, grid emissions and contractual instruments. That could create opportunities for platforms that help companies manage clean energy procurement, verify energy attributes and model Scope 2 emissions under different accounting methods.

For policymakers and regulators, the issue highlights a broader challenge in corporate climate disclosure. As renewable energy markets mature, accounting systems need to distinguish between financial support for clean energy and physical decarbonization of power consumption. Both can be valuable, but they do not always produce the same emissions impact.

The outcome of the GHG Protocol process will matter beyond the technology sector. Any change to Scope 2 guidance could affect manufacturers, retailers, logistics companies, financial institutions, real estate owners and other energy buyers that rely on renewable electricity claims as part of their climate strategies.

For now, the split among Big Tech companies reflects a wider tension in corporate decarbonization: whether clean energy accounting should prioritize precision in matching power use with clean generation, or flexibility to channel investment toward grids where emissions reductions may be largest.

Source: www.reuters.com