Polestar Compare
Where HYDRA OS fits.
These are layers, not competitors. Performance evidence that others can rely on needs an independent layer.
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Plant control and SCADA
Runs the plant: process control, safety interlocks, alarms.
AnswersIs the plant operating safely and within limits right now?
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OEM monitoring and service
The supplier's view of its own equipment: condition monitoring, service and warranty support.
AnswersIs the equipment behaving as its maker expects?
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Historian and asset performance management
Stores plant data long term and runs maintenance and fleet workflows.
AnswersWhat happened, and what maintenance is due?
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Independent performance intelligence (HYDRA OS)
Turns test and operating data into performance evidence: KPIs on recognised definitions, P10/P50/P90 estimates, guarantee verdicts, each with its uncertainty and sources.
AnswersWhat will this plant deliver, how confident can we be, and does the evidence hold up for a lender, insurer or independent engineer?
What each layer covers.
| Capability | Control / SCADA | OEM monitoring | Historian / APM | HYDRA OS |
|---|---|---|---|---|
| Process control and safety interlocks | Yes | No | No | No: read-only |
| Long-term data storage | Limited | Varies | Yes | Keeps model state and reports |
| Loss attribution (kinetic, ohmic, transport) | No | Varies by supplier | Not typically | Yes |
| Independent of the hardware supplier | n/a | No | Yes | Yes |
| Stated uncertainty on performance figures | No | Varies | Not typically | Yes |
| Reports structured for technical due diligence | No | No | No | Yes |
General characteristics of each category, not an assessment of any named product. Capabilities differ between vendors; ask each one directly.
Plant-level software platforms.
In ABI Research's competitive ranking of software for green hydrogen production, published on 13 March 2025, Siemens and Schneider Electric were placed as market leaders, with Siemens first. ABB, AspenTech and Homer Energy were placed as mainstream vendors, and Rockwell Automation, SLB and ZeroAvia as followers. The ranking assessed impact on capital and operating costs, portfolio breadth and lifecycle support, support for alkaline, PEM and solid oxide electrolysis, geographic reach and partnerships, and use by large-scale producers.
These are plant-level platforms. HYDRA OS works alongside them and reads the same data; it does not replace process control, dispatch or maintenance workflows.
Source: ABI Research press release, 13 March 2025. Last checked 27 September 2026.
Which layer do you need?
| If this is your situation | Start with |
|---|---|
| Building a facility from scratch | Plant control and a plant-level platform. Process control and safety come first. |
| Data is logged, but nobody can say why efficiency is drifting | Independent performance intelligence: loss attribution on your own data. |
| A lender's or insurer's engineer is asking for evidence of stack performance | Independent performance intelligence, with reports structured for due diligence. |
| An OEM whose test data must convince customers' engineers | HYDRA Assess, Evidence Pack. |
| One number to settle this week | A free engineering tool. |
Most plants end up with several layers, because they read the same telemetry and answer different questions. HYDRA OS reads alongside whatever is already installed and never writes to control or safety systems.
Start with an assessment.
Send us an export. Our team returns verified KPIs, degradation rates and a clear view of where your voltage goes.