Assess
By migrating to AWS, customers can benefit from our investments in renewable energy and economy-of-scale to run their workloads with lower carbon emissions. As part of the assess phase, you can calculate the expected carbon emission reductions when migrating to AWS by comparing estimated annual carbon emissions for a customer's current on-premises infrastructure with corresponding carbon emissions of right-sized workloads in AWS. This phase also enables you to identify sustainability related key performance indicators (KPIs) to align key stakeholders.
| MIG-SUS-01: Is sustainability a consideration for creating your migration business case? |
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Sustainability is increasingly becoming a motivator to migrate to the cloud. By migrating to AWS, customers can benefit from our investments in renewable energy and economy-of-scale to run their workloads with lower carbon emissions. The migration business case should demonstrate the carbon emission reductions customers can expect when migrating to AWS.
MIG-SUS-BP-1.1: Include sustainability considerations as part of your migration business case and preliminary assessments
This BP applies to the following best practice areas: Process and culture
A complete migration business case includes the following business impact areas: cost savings, staff productivity, operational resilience, business agility, and sustainability considerations and goals. Sustainability should be included in the business case and aligned with organizational goals.
Implementation guidance
Suggestion 1.1.1: Identify a migration stakeholder to own sustainability goals.
A single-threaded owner is required to identify and align sustainability goals to overall migration goals. The owner also owns the sustainability portion of the business case for migration. The owner is responsible for capturing sustainability-relevant data before, during, and after the migration.
Suggestion 1.1.2: Include sustainability impact in the business case along with TCO and return on investment (ROI) calculations.
Sustainability impact should be included in the final business case for the migration. Alignment with organizational sustainability goals can be showcase here. You can use tools such as AWS Migration Evaluator
| MIG-SUS-02: Does your migration strategy include assessing an AWS Region to meet business and sustainability goals? |
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An important decision that needs to be made prior to migrating to AWS is the Region you select to deploy and migrate your workloads. This choice significantly affects KPIs, including latency, cost, and carbon footprint. To effectively improve these KPIs, you should choose Regions for your workloads based on both business requirements and sustainability goals.
MIG-SUS-BP-2.1: Choose a Region for the workloads you plan to migrate based on your business requirements and your sustainability goals
This BP applies to the following best practice areas: Region selection
It can be challenging to select the optimal Region for a workload to migrate. This decision must be made carefully, as it has an impact on compliance, cost, performance, services available for your workloads, and sustainability goals.
Implementation guidance
Suggestion 2.1.1: Shortlist potential Regions for your workloads based on your business requirements.
If your workload contains data that is bound by local regulations, shortlist Regions that comply with those regulations. This applies to workloads that are bound by data residency laws, where choosing an AWS Region located in that country is mandatory.
There are four key business factors to consider when evaluating and shortlisting each AWS Region for a workload: compliance, latency, cost, and services and features. Evaluating all these factors can make coming to a decision complicated. Try to shortlist potential Regions based on these KPIs
Suggestion 2.1.2: Select Regions to support your sustainability goals as part of your migration strategy.
After shortlisting the potential Regions, the next step is to choose Regions near Amazon renewable energy projects, or Regions where the grid has a lower published carbon intensity.
For more detail, see the following:
