The Cloud Repatriation TCO Worksheet is a free nine-page worksheet, delivered as a PDF plus an editable CSV that opens in Excel or Google Sheets, which compares the true total cost of ownership of staying on public cloud versus moving workloads to private cloud. It is built for CFOs, FinOps practitioners, platform engineering leads, and CIOs preparing a board recommendation. The worksheet captures often-missed costs on both sides: hyperscaler egress, idle and over-sized resources, reserved-instance underutilization, and managed-service premiums against destination hardware, colocation, storage, backup, DR, and platform-team capacity. Aenix uses it during the cost workstream of its Platform Readiness Assessment. The repatriation destination is the Ænix Platform, the company’s productized offering built on Cozystack, an open-source CNCF project licensed under Apache 2.0.
A nine-page worksheet — PDF plus an editable CSV that opens in Excel or Google Sheets — that takes your actual public-cloud spend and produces an honest five-year TCO comparison against private cloud. Models hidden costs (egress, idle resources, commitment underutilization, hyperscaler-managed-service premiums) plus realistic destination costs (hardware, datacenter, platform-team capacity, ops). Used by Ænix during the cost workstream of a Platform Readiness Assessment.
Pairs with: any Ænix platform — the repatriation destination depends on buyer profile. If you sell cloud to customers → Public Cloud Platform. If you run it for your own organisation → Private Cloud Platform. GPU-heavy either way → add the AI Platform.
What’s in the worksheet
Section 1: Public-cloud current state
- Monthly bill breakdown by account / service / team
- Reserved Instances / Savings Plans utilization
- Egress costs (often missed)
- Idle / over-sized resources
- Hyperscaler-managed-service premium analysis
- Commitment expiration ladder
Section 2: Destination architecture
- Hardware acquisition + 5-year refresh
- Datacenter / colocation
- Network bandwidth + egress between sites
- Storage tiering and growth
- Backup and DR infrastructure
- Identity, observability, platform tooling
- Platform-engineering capacity needed
- Software licenses where applicable
Section 3: Workload classification
- Per-workload: repatriate now / later / stay / reassess
- Ranked by net repatriation ROI
- The largest workloads usually carry the bulk of the cost case
Section 4: Cost trajectory
- Year 0 through Year 5, with the break-even point
- Sensitivity analysis for occupancy assumptions
- CFO-grade summary
Section 5: Decision framework
- Stay / partial repatriate / full repatriate
- Risk factors and dependencies
TCO worksheetPDF + editable CSV5 sections
feeds
Platform Readiness AssessmentCost workstream
outputs
Board recommendationStay / partial / full repatriate
Who uses this
- CFOs and finance partners evaluating cloud cost
- Platform engineering leads scoping repatriation
- CIOs preparing board recommendation
- FinOps practitioners
After downloading
The worksheet gives you the analytical foundation. For full TCO modelling and architecture design see Cloud repatriation services or Platform Readiness Assessment.
Ænix is the team behind Cozystack (CNCF Project), and we offer Ænix Platform — our commercial productized offering based on Cozystack.
Frequently asked questions
What is cloud repatriation TCO and why does it need its own worksheet?
Cloud repatriation TCO is the all-in cost comparison of keeping workloads on public cloud versus running them on private infrastructure. A worksheet is needed because both sides hide costs: cloud bills understate egress and commitment waste, while naive private-cloud estimates omit datacenter, DR, and platform-team capacity. The template surfaces both honestly.
Is the worksheet really free, and what format is it in?
Yes. You get a nine-page PDF worksheet you can print and fill in, plus a CSV of the same line items that opens directly in Excel or Google Sheets so finance can total it in the tool they already use. Where a figure is calculated from others, the worksheet states the formula so you can reproduce it.
Which hidden costs does the worksheet capture?
On the cloud side: egress, idle and over-sized resources, reserved-instance and savings-plan underutilization, and hyperscaler managed-service premiums. On the destination side: hardware acquisition and 5-year refresh, colocation, network bandwidth, storage growth, backup and DR, identity and observability tooling, and platform-engineering capacity.
Do I have to repatriate every workload to benefit?
No. Section 3 classifies each workload as repatriate now, later, stay, or reassess, ranked by net repatriation ROI. The largest workloads usually account for the bulk of the cost case, so partial repatriation is a valid and common outcome.
What is the repatriation destination Aenix recommends?
The Ænix Platform, a productized offering built on Cozystack, an Apache 2.0 CNCF project. It runs virtual machines via KubeVirt and containers on a single Kubernetes API, with Cilium eBPF networking, LINSTOR/DRBD storage, and Tenant-CRD multi-tenancy. Which platform fits depends on buyer profile: Ænix Public Cloud Platform if you sell cloud to customers, Ænix Private Cloud Platform if you run it for your own organisation, with Ænix AI Platform added for GPU-heavy estates.
What happens after I download and fill in the worksheet?
The worksheet gives you the analytical foundation. For full TCO modelling and architecture design, Aenix offers Cloud repatriation services and a Platform Readiness Assessment, where the worksheet feeds the cost workstream.
