DEC Reliability & Maintenance

Firm power means the converter must run continuously and be serviceable; reliability is engineered into the train, not assumed.

Firmness is a reliability claim

MetroVolt's core promise — firm, 24/7 power co-located with load — is fundamentally a statement about reliability. A converter that is efficient but frequently down does not deliver firm power. So the DEC train is designed for continuous operation, graceful degradation, and maintainability, alongside its efficiency. No rotating turbine helps: there are fewer wear-prone moving parts than in a thermal plant.

What wears and what fails

• Electrode erosion from ion impact and sputtering — gradual, tracked by diagnostics.
• High-voltage breakdown events — conditioned out and isolated when they occur.
• Thermionic emitter aging — slow drift in emission over time.
• Vacuum and cooling components — pumps and loops with their own service intervals.

Designing for uptime

Reliability is built in through redundancy and isolation: the staged, modular train means a fault in one stage can be isolated on the DC bus while the rest keeps running at reduced output rather than tripping entirely. Multiple burner trains in parallel let one be serviced while others carry load. Diagnostics give early warning of erosion and drift so maintenance is planned, not reactive.

Maintainability

The converter surfaces that erode — grids, collectors, emitters — are designed as replaceable modules, so servicing does not mean rebuilding the machine. Because the train has no large turbine or condenser, the maintenance footprint is smaller than a thermal plant's. All of this is design intent for a machine not yet built; demonstrating real-world reliability is part of what the burner test program must establish.