Valohai Wattson 🔌⚡

About

Wattson is a Python library for estimating cloud compute carbon emissions.

It currently supports estimating emissions for a range of Amazon EC2 instances in a variety of regions.

Usage

You can install this package with pip by running pip install valohai-wattson.

If you are currently using AWS instances, you can calculate the carbon emissions for your instances using the following code:

from wattson import estimate_carbon_emissions

training_emissions = estimate_carbon_emissions(
    instance_type='c4.2xlarge',
    region='us-east-1',
    hours=1,
    load_percentage=0.5,
)

The returned value will be of the type wattson.EmissionsEstimation and have the following information:

• data_license: The license of the data used to estimate the emissions.
• region: The region the original computation was performed in.
• instance_type: The instance type of the original computation.
• avg_load: The average CPU load during the original computation (defaults to 50% if not specified).
• scope_2_co2eq: The estimated CO2 emissions for the electricity used in the original computation.
• scope_3_co2eq: The estimated CO2 emissions for manufacturing of the device used in the original computation, assuming a 4-year usage.
• compensated: Were any of the emissions of the original computation compensated using e.g. carbon emissions compensation or renewable energy credits.
• details: Any additional details about e.g. the compensation methodology.

Acknowledgements

This project uses the EC2 Carbon Emissions Dataset by Teads Engineering.

Licenses

• The library code is Copyright (c) 2022 Valohai, licensed under the MIT License.
• The Teads Engineering EC2 Carbon Emissions Dataset is licensed under the Creative Commons Attribution 4.0 International License.