Cloud vs on-premise SCADA: the decision factors.
Neither model is universally correct — the right choice depends on your OT security policy, connectivity, and operating constraints. As of 2026-07.
| Factor | On-premise | Cloud |
|---|---|---|
| Data location | On your infrastructure, under your direct control | Hosted by a cloud provider, governed by a shared-responsibility model |
| Latency to field devices | Typically lowest — servers can sit near the process | Depends on network path to the cloud region |
| Connectivity resilience | Unaffected by internet outages | Depends on a reliable internet/WAN link |
| Scaling new sites | Requires local infrastructure per site (or a central hub) | Often faster to onboard new sites |
| Capex vs opex | Typically capex-weighted (servers, licenses) | Typically opex-weighted (subscription/consumption) |
| OT security policy fit | Straightforward for air-gapped/isolated OT policies | Requires policy alignment for OT-to-cloud data flow |
Many operations combine both: on-premise real-time control and alarming, with cloud-hosted dashboards and analytics fed by edge collection. This is the pattern SCAIQ Edge is designed to support.
SCAIQ™ deploys on-premise today, with edge and cloud/hybrid options in the platform offering — see Deployment Options.
Frequently asked questions
Can we start on-premise and move to hybrid later?
Yes — SCAIQ Edge is designed to add cloud publishing to an existing on-premise deployment without re-architecting.
Does cloud deployment mean losing local control?
No — cloud and hybrid patterns typically keep real-time control and safety-relevant alarming on-premise, with cloud handling dashboards and analytics.
What if our OT policy requires full isolation?
SCAIQ™ runs fully on-premise with no external dependency for core operation.
See SCAIQ™ live.
Bring your toughest SCADA questions. Our engineers will show you real screens, real alarms, and real trends.
Or talk to us directly: +91 84014 22388 ·sales@scaiq.com