Emissions accounting

EnerG converts energy and activity data into greenhouse gas emissions using scopes, methods, and factors. This page explains the accounting model behind the emissions dashboards. To manage emissions data, see the portfolio Emissions overview and its related pages. For field schemas, see Emissions reference.

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GHG scopes

EnerG organizes emissions by the greenhouse gas scopes your portfolio tracks. Scope 1 combines stationary combustion with fleet emissions and fugitive emissions. EnerG focuses on building and portfolio utilities. It does not cover every possible Scope 3 category, such as purchased goods, business travel, or investments. Your reporting boundaries and disclosure choices remain your responsibility.

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Location-based and market-based Scope 2

EnerG reports Scope 2 emissions two ways. These totals are never mixed into one number. Report either or both when your program requires it. Market-based totals fall as you allocate renewable instruments. Location-based totals track the grid.

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RECs and covered load

A renewable energy certificate (REC) represents renewable generation you can allocate to buildings and retire against emissions. For market-based electricity, EnerG splits use into:

• Covered — matched to your renewable contract or certificates (often zero emissions per kWh)
• Uncovered — the remainder, which still uses a grid or residual-mix factor

Example: a building uses 1,000 megawatt-hours in a year. RECs cover 800 megawatt-hours. The uncovered factor is 0.35 kg CO₂e per kWh. You record instruments as volume contracts, then allocate and retire volume by reporting year.

• Residual emissions are emissions before offsets.
• REC avoided reductions come from retired certificates.
• Onsite avoided reductions come from on-site generation such as solar.

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Emission factors

An emission factor converts activity into carbon: Emissions = Usage × Emission factor. Each factor carries a methodology, GHG scope, service type, and geography or grid. Only active factors apply to reports. Manage them in the emission factors library.

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Where default factors come from

EnerG starts with published datasets from recognized authorities. Your organization can keep these defaults or set custom factors. Factors are versioned by year so historical reports stay aligned with the standards for that period.

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Which factor applies

When EnerG calculates emissions for a reading, it picks a factor in this order:

1. Building-specific factor — assigned for that building and utility type
2. Portfolio default — your organization standard for all sites
3. System default — the official library for that region and year

In the app you may see labels such as Default (official library), Custom (portfolio), or Override (building). You can create custom factors for electricity, fuels, refrigerants, waste, and T&D. Reporting years can be locked so factor edits do not silently rewrite history. For fugitive events, EnerG multiplies refrigerant quantity lost by the refrigerant’s global warming potential (GWP) to produce CO₂e.

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Compliance-oriented exports

EnerG produces structured exports through Report Builder for consumption, cost, GHG, and completeness. Use those outputs as the system of record for disclosure prep. EnerG does not complete third-party sustainability filings end to end. You export metrics from EnerG, then finish entry and submission in your disclosure tools.

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Next steps