Impact Measurement

Data Collection

• Project Metadata: such as nameplate capacity, substation ID, project location, etc.

• Meter Data: showing charging and discharging activity at the hourly or sub-hourly granularity. Ensure all metering equipment is calibrated regularly for accuracy. Maintain records of calibration.

• Downtime: Scheduled and unscheduled downtime.

• Operational Mode: Document the operational mode of the battery (e.g., peak shaving, load shifting, emergency backup, renewable integration).

• State of Charge: Regularly record the state of charge (SoC) of the battery to understand the usage patterns and efficiency.

• Data Accessibility for Verification: Provide access to relevant data to authorized parties, including auditors and verifiers, while maintaining confidentiality where necessary.

• Data Storage and Backup: Implement secure and reliable data storage solutions with appropriate backup mechanisms to prevent data loss.

• Remote Monitoring and IoT Integration: Where feasible, integrate Internet of Things (IoT) technology for real-time monitoring and data transmission.

• Compliance with Data Protection Regulations: Adhere to relevant data protection and privacy regulations in the jurisdiction of operation, ensuring that all data collection and transmission is compliant with legal requirements.

Emission Factor Determination

The following hierarchy is established to determine the most appropriate emission factor for a given time and location. This hierarchy moves from broader to more granular data sources:

TYPE	DESCRIPTION	SOURCE
Hourly Nodal Marginal Emissions - Public	Provide the most accurate reflection of the impact of emissions at specific nodes within the grid.	Grid Operator
Hourly Nodal Marginal Emissions - Private	Proprietary models	REsurety
Hourly Zonal Marginal Emissions - Public	Reflect the specific emissions associated with electricity generation in a defined grid zone.	Grid Operator
Hourly Zonal Marginal Emissions - Private	Proprietary models	WattTime
Hourly Average Emissions	Utilize average grid emission factors as the baseline data. These are generally available and provide a broad overview of emissions associated with electricity generation.	National grid operator databases, environmental agencies, or global emission factor databases (e.g., IEA, EPA).