• Data center dependent firms now report Scope 2 emissions 76% below their actual grid consumption, up from 41% in 2021.
• Current GHG Protocol rules allow companies to use market-based accounting to report lower electricity emissions through instruments such as RECs and supplier tariffs.
• Investors face rising climate risk as AI growth increases electricity demand while reported emissions may understate real grid impact.

Data Center Power Demand Exposes Scope 2 Accounting Gap

Data center power demand has quadrupled with the rise of artificial intelligence, yet the reported carbon footprints of major technology firms are moving in the opposite direction.

The divergence is drawing new scrutiny from investors, regulators and sustainability teams. It also raises a central question for climate governance. Are reported Scope 2 emissions still giving markets a clear view of electricity-related climate risk?

According to research by Clarity AI, data center dependent firms now report Scope 2 emissions 76% below their actual grid consumption. That gap has widened sharply from 41% in 2021 among a consistent panel of companies tracking both metrics annually from 2021 to 2024.

The issue sits at the center of global corporate emissions reporting. Under current greenhouse gas reporting standards, companies can report electricity-related emissions through two different methods.

The location-based method measures Scope 2 emissions using the average carbon intensity of the physical grid where electricity is consumed. The market-based method measures emissions based on electricity attributes that companies contractually purchase. These include renewable energy certificates, supplier tariffs and similar instruments.

Market-Based Reporting Cuts Emissions On Paper

Technology firms have leaned heavily on market-based accounting to lower reported emissions. That has created a growing gap between their physical grid use and their balance-sheet climate disclosures.

The divergence is appearing across multiple sectors. Yet it is most visible among firms that operate or depend heavily on data centers. Their reported emissions often fall even as their electricity use rises.

“Data center power demand has quadrupled due to the artificial intelligence boom, but Big Tech’s reported carbon footprints are doing the opposite,” said Andrés Olivares, Director of Product Research and Innovation at Clarity AI.

The research suggests that the apparent emissions progress does not mean technology companies are decarbonising faster than heavy industry. Their greenhouse gas footprints are dominated by electricity consumption. That makes Scope 2 accounting especially important for investors assessing real-world climate exposure.

In practice, renewable energy certificates can reduce market-based emissions figures. Yet those claims may not reflect the emissions profile of the grid serving the data center at the time electricity is consumed.

That distinction is becoming more material as AI infrastructure expands. Data centers require large, constant power loads. In many regions, that demand still depends on grids with fossil fuel generation.

RELATED ARTICLE: New Clarity AI Survey Reveals AI’s Growing Role as Climate Risk and Regulation Reshape Markets

GHG Protocol Revisions Could Reset The Baseline

Current Scope 2 accounting rules rely on the GHG Protocol’s 2015 guidance. That framework allows companies to report market-based emissions that can approach zero, even when their operations still draw power from carbon-intensive grids.

The GHG Protocol is now revising these rules after a public consultation period that concluded in early 2026. Proposed changes could require tighter temporal and spatial matching between clean electricity claims and actual consumption.

That would mean companies may need to match emissions claims to the hour and location of electricity use. Such a shift would have major consequences for annual power purchase agreements.

Traditional PPAs often match electricity purchases over a year. A stricter framework would push companies toward hourly matched, 24/7 clean energy contracts. It could also reduce the emissions cuts that large technology firms currently report under market-based accounting.

Big Tech’s interest in carbon-free power is rising as this policy debate advances. Several companies have announced plans linked to technologies such as small modular nuclear reactors. These projects may support future low-carbon power supply, but many remain unproven at commercial scale.

What Investors Should Watch

For investors, the central risk is not only emissions transparency. It is also whether market prices are accounting for the energy intensity of AI infrastructure.

Artificially low Scope 2 figures can hide the climate and regulatory exposure of data center operators. They may also obscure future capital needs tied to grid access, clean power procurement and energy storage.

Companies that cannot secure credible clean electricity may face higher costs and tougher scrutiny. Those with stronger power strategies may gain an advantage as reporting rules tighten.

The governance implications are also clear. Boards need to understand whether reported Scope 2 reductions reflect real decarbonisation or accounting instruments. Investors should ask how firms match clean power claims to actual demand, region by region and hour by hour.

The AI boom is now a climate disclosure test. As data centers expand, electricity reporting will become a more important measure of corporate transition risk. The next phase of Scope 2 reform could expose which emissions reductions are backed by real grid change and which are still sitting mainly on paper.

ESG News Editorial Team

The ESG News Editorial Team is comprised of veteran financial journalists and sustainability analysts dedicated to providing real-time, objective reporting on global ESG regulations, climate finance, and corporate governance. Our desk monitors daily developments from the SEC, IFRS, CSRD and international regulatory bodies to ensure our 1M+ readers receive accurate, data-driven insights into the evolving sustainable investment landscape. Follow the ESG News Editorial Team for expert reporting on global sustainability standards, ESG disclosures, and climate policy. Access over 10,000 investigative reports and real-time updates.