Case Study · Clean Energy

VMware to AWS Exit for a Global Clean Energy Company

Migrating off VMware without disrupting a global clean energy operation, on a modern AWS platform built for VMs, containers and edge sites.

VMware and Data Center ExitCloud ModernizationNetworking

VMware to AWS Exit for a Global Clean Energy Company - architecture illustration

Enterprise overview

Global clean energy technology company

2,000+

Virtual machines

3,200+

Remote sites

Global

Field operations

A global clean energy technology company runs distributed field operations across thousands of remote sites, backed by a VMware-based estate that had become increasingly costly and constrained.

Leadership set a clear direction: modernize onto AWS without disrupting the field, and open the door to containerized workloads and better global resilience.

The Problem

A VMware estate that had outgrown its operating model.

Renewal economics, capacity limits and rising operational effort made continued reliance on VMware unattractive - but field operations left no room for disruption.

Rising licensing cost

VMware economics no longer matched the operating profile.

Slow scaling

Adding capacity required long, manual cycles.

Container gap

No native path for Kubernetes-based modernization.

Zero-disruption constraint

Field operations across 3,200+ sites could not tolerate downtime.

The Zappsec Solution

An AWS platform for VMs and Kubernetes, delivered in waves.

Zappsec designed a wave-based migration factory, established an AWS platform capable of hosting both virtualized workloads and Amazon EKS, and modernized global connectivity in step with the migration.

1
Wave-based migration factory
Application dispositioning, wave planning and automated cutover playbooks.
2
AWS platform for VMs and Kubernetes
Governed accounts, EKS clusters and shared services on AWS.
3
Hybrid connectivity
AWS Direct Connect and site connectivity aligned with the migration waves.
4
Zero-disruption operations
Runbooks, dry runs and rollback plans protected field operations.

Architecture