Sustainability Tool Methodology

This topic details the Equinix methodology used for calculating data that appears in the Sustainability Tool. This data includes customer allocated greenhouse gas (GHG) emissions related to customers' use of Equinix co-location services and site-level Power Usage Effectiveness (PUE). Calculated GHG emissions and PUE are made available to customers in the Equinix Sustainability Tool tab located within the Customer Portal.

Greenhouse Gas Accounting

Equinix conducts its annual greenhouse gas emissions accounting process in accordance with the World Resources Institute (WRI) Greenhouse Gas Protocol's (GHGP) Corporate Accounting and Reporting Standard. Corporate energy, renewable energy and greenhouse gas emissions data are externally verified by a third party in accordance with Limited Assurance ISO 14064-3 Standards.

Location- and market-based greenhouse gas emissions factors for each of Equinix's approximately 270 International Business Exchanges (IBXs) are identified annually as a part of Equinix's ongoing greenhouse gas accounting program. Location-based emissions factors are derived from data sets published by government agencies and/or from other publicly available sources relevant to the geographic location of each individual IBX. For market-based emissions calculations, Equinix uses emissions factors from our relevant electricity suppliers if available and applies emissions factors related to Energy Attribute Certificates or related to renewable energy procured directly for each IBX, as applicable. Sites that are 100% covered by renewable energy can claim zero associated market-based emissions.

Equinix follows best practice as defined by the Greenhouse Gas Protocol in sourcing our emissions factors. As this dataset is prepared by a third-party consultant for Equinix's use, we are not able to disclose it publicly.

Organizational Reporting Boundary

Equinix uses the operational control approach as defined by the Greenhouse Gas Protocol to define our organizational boundary for emissions accounting. As generator, fugitive, and natural gas emissions occur as a result of onsite activities under Equinix's control, Equinix reports on these emissions within our (Equinix's) Scope 1. As Equinix controls the power purchased at sites, Equinix reports on the carbon impact of purchased electricity for customer IT equipment and mechanical and electrical (M&E) overhead as within our (Equinix's) Scope 2 emissions. Therefore, Equinix procures renewable electricity coverage for electricity consumption at our sites and retires associated Energy Attribute Certificates in Equinix's name.

Green Power Reports can serve as an attestation of the retired renewable energy against electricity consumption at our sites and can be used by our customers as evidence of decarbonization of their attributed electricity emissions at the site in market-based accounting.

Logic and Calculations

The Sustainability Tool contains calculated electricity usage, greenhouse gas emissions, and Power Usage Effectiveness (PUE) metrics. Calculation methods for the metrics that fall within these categories are detailed in this section.

Electricity Usage

Customer electricity usage falls into two categories: customer IT equipment electricity usage and overhead M&E electricity usage. Customer IT equipment electricity usage is the electricity consumed by the customer's equipment deployed within Equinix facilities. Overhead M&E electricity usage is the portion of overhead electricity usage for the site allocated to the customer. M&E usage is calculated in accordance with ISO 30134 standards.

Customer IT Equipment Electricity Usage

Customer IT Equipment Electricity Usage will, in most cases, match power usage in customer power usage reporting. Differences may occur due to estimation logic present in the Green Power Report.

Customer power usage is pulled from Equinix databases based on contract data: for each cage that was active during the reporting year, the Sustainability Tool seeks out consumption data for that contract.

Customer IT equipment electricity usage data utilized by the Sustainability Tool is collected through Branch Circuit Monitoring (Branch Circuit Monitoring) power metering where available. Branch Circuit Monitoring data is metered at the circuit level and aggregated into monthly, cage-level totals for use in the Sustainability Tool. For the small number of sites that are not Branch Circuit Monitoring-enabled and any other instances in which no metered power usage is available for a given cage, monthly IT usage is estimated.

Branch Circuit Monitoring versus non-Branch Circuit Monitoring IT usage calculations are determined as follows:

• If all Branch Circuit Monitoring data is available for the reporting period, IT usage is calculated using metered Branch Circuit Monitoring data.

A mix of Branch Circuit Monitoring metered data and estimates based on draw cap is used to estimate monthly cage-level usage when one or more days in the month have Branch Circuit Monitoring data but one or more days are missing Branch Circuit Monitoring data.

If Branch Circuit Monitoring for the reporting period is incomplete due to missing or inaccurate monthly totals, the following steps are taken to estimate monthly totals:

• If Branch Circuit Monitoring data exists for the months surrounding the month with no Branch Circuit Monitoring data, an average of the two surrounding months' usage is used for the missing month.
• If data does not exist on either side of the missing month, but exists for the previous three months, an average of the previous three months' data is used for the missing monthly total.
• If there are no available values for the previous three months, but there is an available value four months prior, this value is used for the missing monthly total.
• If none of these options are available, the missing monthly total is estimated using customer draw cap.

Calculations for Branch Circuit Monitoring IT electricity usage are as follows.

Customer Overhead M&E Usage

M&E overhead electricity usage is allocated to each customer based on the intensity of their IT consumption relative to the site's total IT consumption. M&E consumption is calculated as follows, where Power Usage Effectiveness (PUE) is total site IT electricity consumption divided by total site electricity consumption.

Total Customer Electricity Usage

Total Renewable Energy

Total renewable energy is the portion of total electricity consumption covered by Equinix's renewable energy purchases.

Scope 1 Emissions

Scope 1 emissions are allocated to customers based on the intensity of their IT consumption relative to the site's total IT consumption. Relevant Scope 1 emissions sources include natural gas, generator consumption (diesel or hydrotreated vegetable oil fuel), and refrigerant leakage. Data can be displayed for a 12-month period, with generator and refrigerant emissions evenly distributed across each month for reporting purposes.

Not all sites will have nonzero values for emissions related to these three activities every year:

• Not all sites use natural gas for heating. In the case where a customer does not have presence in sites where natural gas is used for heating, natural gas emissions will show as "N/A."
• As generator consumption and refrigerant leakage are intermittent activities, "0" is an expected and valid value.

Generator Emissions

Generator emissions occur when backup generators are utilized due to an outage onsite. hydrotreated vegetable oil is relevant for Generator Consumption at MA5, PA4, and SK1; all other sites use diesel in their backup generators.

Fugitive Emissions

Natural Gas Emissions

Scope 2 Emissions

Location-Based Emissions

Market-Based Emissions

Power Usage Effectiveness

The Sustainability Tool provides site-level, rolling 12-month Power Usage Effectiveness average (PUE12). PUE12 is available only for sites that have been operational for a full year. Equinix calculates Power Usage Effectiveness in accordance with Category 1 of the ISO/IEC 30134-2 standard.

Data and Logic Changes

Equinix continually strives to improve the quality of data we provide to customers. To this end, we periodically make changes to our backend data and product logic that may result in differences between historically provided reports and newly generated reports. In most cases, any differences that result from these methodology refinements will be small, but questions or concerns may be submitted via a Customer Portal support ticket.

Draw Cap Estimate of Customer IT Equipment Electricity Usage

Conversion Factors

Conversion	Conversion Factor
kVA to kWh	730.5
kWh to MWh	.001
kVA to kW	1
Pounds to metric tons	0.000453592

Equinix Emissions Factor Sources

Emissions Source	Emissions Factor Source
Scope 2 (Electric - US)	Utility Emission Factors (2024) US EPA eGRID 2023 (2021 data)
Scope 2 (Electric - EU)	Utility Emission Factors (2024) RE-DISS Residual European Mix - 2022 v.1
Scope 2 (Electric Power - Canada)	Utility Emission Factors (2024) Environment Canada - 2023 National Inventory Report (2022 Data)
Scope 2 (Electric Power - Australia)	Utility Emission Factors (2024) Australian Government National Greenhouse Account Factors. Published 2024
Scope 2 (Electric Power - Global if not listed)	Utility Emission Factors (2024) International Energy Agency (IEA) CO2 Emissions from Fuel Combustion 2023 - Year 2021
Diesel	GHGP, Stationary Combustion (2015)
HVO	DEFRA (2024)
Natural Gas	GHGP, Stationary Combustion (2015)
Refrigerant (varies by type)	DEFRA (2024)