Polestar 
The questions it answers
What HYDRA Monitor tells you.
- Is our data good enough to trust, today?
- How are our stacks degrading, and is the trend changing?
- Which early warnings matter most, and how confident are we in each?
- When should each stack be replaced?
What you provide
- Operating data from your historian or control network, read-only
- Stack and system metadata
- Guarantee terms and the operating envelope
What you receive
- Data-quality monitoring
- Degradation trends, with P10/P50/P90 estimates that narrow as operating data accrues
- Early fault warnings, ranked by confidence
- Stack replacement planning
The band narrows as evidence accrues. Synthetic example.
How deployment works.
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01
Assessment first
Most deployments start from a HYDRA Assess baseline on exported data.
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02
On-premise install
HYDRA OS runs inside your network, on-premise or air-gapped, with read-only connections.
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03
Continuous evidence
Estimates update as data accrues; reports and alerts stay on site unless you share them.
Methodology notes
Definitions, normalisation, uncertainty.
Monitor uses the same engine and the same definitions as Assess and Verify, so continuous results and one-off assessments can be compared directly.
It is read-only and advisory. It never writes to control or safety systems.
What it includes
- Electrochemical engine calibrated against NREL benchmark data
- Data-quality checks
- Polarisation curve fitting and performance baseline (kinetic, ohmic, transport losses)
- Normalisation of operating data to reference conditions
- Degradation tracking, separating reversible from irreversible losses
- An uncertainty range next to every figure
- Remaining useful life estimate and stack replacement planning
- Continuous on-premise, read-only monitoring
- Uncertainty that narrows as operating data accrues
- Early fault warnings, ranked by confidence
Questions.
Is it safe to connect this to our plant?
HYDRA OS is read-only and advisory. It never writes to control or safety systems.
Does our data leave the site?
No. Monitor runs on-premise or air-gapped. Plant data stays on your site.
Our OEM already monitors the stacks.
Keep it. HYDRA Monitor gives an independent reading of the same data, which is what lenders, insurers and warranty discussions call for.
Start with an assessment.
Send us an export. Our team returns verified KPIs, degradation rates and a clear view of where your voltage goes.