What are Scope 2 Emissions

Scope 2 emissions are the indirect greenhouse gas emissions tied to the electricity, steam, heating, or cooling a company purchases. The company did not burn the fuel, but it created the demand that caused the fuel to be burned. For most office-based and data-heavy businesses, this is the largest single share of the carbon footprint, and it is also the most tractable, because the instruments to manage it can be: renewable energy certificates, power purchase agreements, and green tariffs (utility programs that supply subscribed customers with renewable electricity). Noreva, an energy market data and analytics provider (formerly Karbone Research), prices and forecasts the renewable energy certificate and power markets behind these instruments. This guide explains what Scope 2 is, how it is calculated, and how the environmental attribute markets Noreva covers turn a reporting obligation into a procurement strategy.

What Are Scope 2 Emissions?

Scope 2 emissions are the indirect greenhouse gas emissions that result from generating the electricity, steam, heating, or cooling consumed by a reporting organization. The “indirect” part is critical: a coal-fired power plant 200 miles away produced the electricity that runs your data center, and the CO2 released during that generation belongs in your Scope 2 inventory even though the emissions physically left someone else’s smoke stack.

The GHG Protocol Corporate Standard, still the global reference for corporate emissions accounting in 2026, requires companies to report Scope 2 separately from Scope 1 (direct emissions from owned sources) and Scope 3 (all other value-chain emissions). The separation exists because the reduction strategies differ fundamentally. You do not fix Scope 2 with better exhaust filters; you fix it by changing where your energy comes from and what contracts back it.

Location-Based vs. Market-Based Accounting

Two methods exist for calculating Scope 2, and they can produce very different numbers for the same company:

The GHG Protocol requires companies to report both methods when they hold any contractual instruments. This dual reporting is a guardrail against greenwashing: a company cannot buy cheap, unbundled RECs, claim near-zero emissions, and hide what the local grid actually looks like. Investors and rating agencies in 2026 are sophisticated enough to question a company that shows only one number.

How Are Scope 2 Emissions Calculated?

The core math is direct. Your meter tracks kilowatt-hours (kWh) consumed over a reporting period. You multiply that consumption by an emission factor, the CO2 equivalent released per kWh generated, and the result is your Scope 2 footprint for that facility. The complexity lives in choosing the right factor.

For the location-based method, organizations use regional grid averages such as the EPA’s eGRID factors in the United States or International Energy Agency factors elsewhere. These change year to year as the grid mix evolves, and many U.S. grid regions carry notably lower factors in 2026 than five years ago, thanks to renewable deployment and coal retirements. For the market-based method, you need documentation: energy attribute certificates such as renewable energy certificates (RECs), direct generator contracts, supplier-specific rates, and a residual mix factor for any unspecified portion of consumption.

How Companies Actually Cut Scope 2

Because Scope 2 data is relatively clean compared with Scope 3, it is one of the most cost-effective areas to decarbonize, and the reduction pathways are well established:

• Renewable energy certificates (RECs): each REC represents the environmental attributes of one MWh of renewable generation. Buyers apply them against consumption in the market-based method. Noreva covers both the voluntary REC market and the compliance REC market, whose prices and additionality profiles differ sharply.
• Power purchase agreements (PPAs): a long-term contract with a renewable generator, often financing new capacity. A PPA locks in both price stability and emission reductions, and it carries stronger additionality than buying existing unbundled RECs.
• Green tariffs and on-site generation: utility green power programs and on-site solar move consumption onto cleaner supply, sometimes with nothing more than opting in.

The market increasingly distinguishes between “additionality,” meaning new clean energy that would not exist without your purchase, and accounting that simply reallocates existing renewable attributes. Buying unbundled RECs from a wind farm that would have run anyway is not the same as signing a PPA that finances new capacity. Understanding REC market fundamentals, as in Noreva’s analysis of rebalanced ambitions in REC markets, is what separates a credible procurement strategy from a paper exercise.

Why Scope 2 Is Under Intense Scrutiny for Data Centers

Data center operators face the sharpest version of this challenge. With AI workloads driving electricity demand sharply upward through 2025 and 2026, hyperscale operators are racing to match new capacity with new renewable generation, and their Scope 2 reporting feeds directly into corporate sustainability ratings and customer procurement decisions. The scramble to secure clean power for these loads is reshaping regional power markets, a dynamic Noreva has tracked in its analysis of how data center builders are solving the power problem. For these operators, Scope 2 is not a disclosure line; it is a core procurement and siting decision.

What Noreva Provides for Scope 2 Procurement

Noreva’s environmental attribute coverage gives sustainability, procurement, and finance teams the forward price context behind their Scope 2 decisions:

• REC price forecasts across compliance and voluntary markets, by state program and vintage.
• PPA and merchant power price context to evaluate long-term renewable contracts against grid alternatives.
• Additionality and market structure analysis to distinguish genuine impact from paper claims.

All of it connects to Noreva’s REC market data and forecasting, so a Scope 2 reduction target can be modeled against real, forward-looking prices rather than last year’s assumptions.

Best Practices for Scope 2 Accounting

• Start with accurate consumption data. Centralize utility data collection; manual spreadsheets break down past a handful of sites.
• Report both methods. Even a strong market-based number should sit next to the location-based figure. Dual reporting builds credibility.
• Prioritize additional reductions over offsets. Favor PPAs that finance new generation over unbundled RECs from existing projects.
• Set a target with a timeline. The Science Based Targets initiative (SBTi) provides frameworks for aligning goals with 1.5°C pathways and gives procurement teams a clear mandate.
• Engage landlords and utilities. If you lease, work with property managers on green tariffs or on-site renewables; many utilities now offer commercial green power by opt-in.

FAQ: Scope 2 Emissions

What is the difference between Scope 1, Scope 2, and Scope 3?

Scope 1 covers direct emissions from sources a company owns or controls, such as boilers and vehicles. Scope 2 covers indirect emissions from purchased electricity, steam, heating, and cooling. Scope 3 covers all other value-chain emissions, from purchased goods to product use, and is usually the largest and hardest to measure.

What is the difference between location-based and market-based Scope 2?

Location-based accounting uses average grid emission factors for the region where you operate. Market-based accounting reflects the specific electricity you have contracted, so RECs, PPAs, and green tariffs lower the market-based figure. The GHG Protocol requires reporting both when contractual instruments exist.

Do RECs actually reduce Scope 2 emissions?

RECs lower your market-based Scope 2 figure by reassigning renewable attributes to your consumption. Whether they represent genuine climate impact depends on additionality. Buying renewable energy credits from an existing project delivers less real impact than a PPA that finances new renewable capacity.

Why do data centers care so much about Scope 2?

Electricity is the dominant emission source for data centers, so Scope 2 drives their sustainability ratings and increasingly their customer contracts. Rising AI-driven power demand has made securing clean supply a core siting and procurement decision rather than a reporting afterthought.

How can Noreva help with Scope 2 strategy?

Noreva provides forward REC and power price forecasts across compliance and voluntary markets, giving procurement and finance teams the price context to evaluate PPAs, green tariffs, and REC purchases against a real Scope 2 reduction target. Book a demo.

Model Your Scope 2 Reductions Against Real Market Prices

Noreva delivers REC and power price forecasts across compliance and voluntary environmental attribute markets, built on fundamentals-based modeling and updated as regulatory and market conditions evolve. Whether you are setting a Scope 2 reduction target, evaluating a renewable PPA, or underwriting clean power procurement, Noreva provides the forward price clarity your team needs to decarbonize purchased energy with confidence. Book a demo.