Power Monitoring and Fault-Detection Systems Market (2026-2036)

The growth of this market is mainly driven by regulatory reporting obligations that require operators above a stated power threshold to measure and monitor a defined set of performance indicators annually; the concentration of load that rising rack power creates, which raises the consequence of any single fault and the value of detecting it early; the move to higher voltage direct current distribution, which introduces monitoring functions with no alternating current equivalent; and the shift from periodic inspection toward continuous asset health diagnostics in electrical equipment.

In addition, the integration of telemetry into power equipment as standard rather than as an option, the adoption of common data interfaces that allow power hardware to be managed alongside compute, and tenant-level measurement required for billing and reporting in multi-tenant facilities are further supporting the growth of this market. Monitoring in this market is increasingly a compliance requirement as well as an operational one, which changes how it is budgeted and specified.

The Power Monitoring and Fault-Detection Systems Market for Data Centers comprises the instruments, systems and software through which electrical conditions in a data center are measured, recorded and assessed, and through which incipient and actual faults are detected. The market includes energy and power meters, branch and circuit-level monitors, power quality analysers, insulation and earth-fault monitors, arc-flash detection and thermal and partial discharge sensors, the gateways and communication infrastructure that carry their data, the monitoring, analytics and reporting software that interprets it, and the commissioning, calibration, integration and managed service provision that accompany them. The market ecosystem extends from sensor and instrument manufacturers through electrical equipment groups and monitoring software suppliers to electrical contractors and commissioning engineers, hyperscale, colocation and enterprise operators, insurers and authorities assessing facility risk, and the regulators whose reporting requirements define what must be measured.

The decisive change in this market is that measurement has become a legal obligation rather than an operational preference. Commission Delegated Regulation (EU) 2024/1364 of 14 March 2024, which establishes the first phase of a common Union rating scheme for data centres, entered into force on 6 June 2024 and applies to operators of data centres with an installed information technology power demand of at least 500 kW, measured as the total power demand of the network, server and storage equipment installed in the computer room floor area, covering enterprise, colocation or multi-tenancy and co-hosting facilities. A threshold defined on installed information technology power captures the facilities in which this equipment is installed, and it applies to operators rather than to owners, which places the obligation on the party that holds the operational data.

What must be reported is specific and extensive. Under that regulation operators must report information identifying the data centre, its location, owner or operator and type, operational details including the level of redundancy of the electrical and cooling infrastructure, and 24 key performance indicators drawn from Annex II and grouped into three blocks covering energy and sustainability, information and communication technology, and data traffic. Twenty-four indicators spanning energy, information technology and data traffic cannot be assembled from building energy bills, and the inclusion of electrical and cooling redundancy means the reporting describes the configuration of the power system as well as its consumption.

The regulation also addresses how the figures are to be produced. The regulation requires those key performance indicators to be measured and monitored by the data centre operators and sets a common measurement and calculation methodology, while permitting an operator unable to collect required data because of technical problems to omit those items provided it explains why. An obligation to measure and monitor against a common methodology converts metering from a design choice into a compliance requirement, and the provision permitting omission where data cannot be collected for technical reasons is an acknowledgement that many facilities did not have the instrumentation in place, which is the gap this market addresses.

The reporting cycle is annual and already running. The first report under the regulation was due on 15 September 2024, with later reports due on 15 May 2025 and annually thereafter, covering the preceding calendar year for a facility operating more than one year and the actual operating period for a newer one, submitted through the national reporting system of the Member State where one exists and otherwise directly to the European database. A recurring obligation with a fixed date creates a demand pattern in which instrumentation gaps are identified during one reporting cycle and closed before the next, which is a more predictable procurement rhythm than the project-driven pattern that previously governed monitoring spend.

Alongside compliance, the operational case has strengthened because the consequence of a fault has grown. According to Vertiv, AI clusters today reach 140 kW per rack, 240 kW is imminent and 600 kW is on the horizon. In the 800 volt direct current architecture published by NVIDIA on 20 May 2025, legacy 54 volt direct current distribution is stated to reach its physical limits as racks exceed 200 kW, the architecture supports racks from 100 kW to more than 1 MW, and 1 MW information technology racks are planned from 2027. A single rack now represents a load that an entire hall once carried, so the quantity of computation interrupted by one protective device operating, or by one undetected hot joint, is far larger than it was, and the value of detecting a developing fault before it operates rises with it.

The move to higher voltage direct current distribution introduces monitoring functions with no alternating current equivalent. Insulation resistance and earth leakage monitoring on an unearthed or high-resistance earthed direct current bus has no direct counterpart in an alternating current installation, direct current arc behaviour differs from alternating current arc behaviour and requires different detection, and the absence of an operating record at these voltages means instrumentation is being installed to generate evidence rather than only to protect.

Telemetry is also being embedded in power equipment as standard rather than supplied separately. At the 2026 Open Compute Project Global Summit, announced on 19 October 2026, the 33 kW Open Rack v3 High-Power Rack power shelf introduced by Advanced Energy Industries was specified with an Ethernet-based controller compatible with DMTF Redfish among its monitoring and control options, carrying six hot-swappable 5.5 kW power supply modules in a one Open Rack Unit form factor. The ABB SACE Infinitus solid-state circuit breaker for direct current networks, rated at 1000 V and certified to IEC 60947-2 with a breaking time of less than 25 microseconds, is supplied with integrated monitoring. Power hardware arriving with monitoring built in and presenting a common data interface changes the composition of this market, since the dedicated instrument and the embedded capability address the same requirement from different directions.

That shift has a commercial consequence worth stating plainly. Where equipment arrives instrumented, the growth in this market moves from discrete meters toward the software that aggregates, normalises and interprets data arriving from many sources in different formats, and toward the services that make a reporting submission out of it. The instrument becomes a feature of the equipment while the interpretation becomes the product.

Multi-tenant facilities carry an additional requirement that single-tenant facilities do not. A colocation operator must apportion energy between tenants for billing, demonstrate contracted capacity and power quality at the point of delivery, and support tenant reporting obligations that mirror its own, which requires measurement at the tenant boundary rather than only at the facility level. This is the principal reason branch and rack-level monitoring is growing faster than facility-level metering.

The market includes electrical equipment groups, specialist instrument manufacturers and monitoring software suppliers, among them Schneider Electric, Eaton, ABB, Siemens, Vertiv, Legrand, nVent Electric, Hitachi Energy, Socomec, Janitza electronics, Bender, Schweitzer Engineering Laboratories, Megger, Fortive, Yokogawa Electric, Delta Electronics, Panduit and Phoenix Contact. Participants compete on measurement accuracy class and its traceability, the range of functions a single device performs, insulation and earth-fault capability on direct current systems, detection sensitivity and false alarm behaviour, interoperability with equipment telemetry and with facility and orchestration systems, reporting capability against regulatory indicator sets, and the installed base through which a software layer can be sold.

At the same time, the market faces challenges, including the displacement of dedicated instruments by telemetry embedded in power equipment; the difficulty of normalising data arriving from many sources in different formats; false alarm behaviour, which determines whether a detection system is trusted and therefore acted upon; the absence of established practice for direct current monitoring at higher voltages; and the attribution of monitoring spend between compliance, operations and insurance budgets, which complicates procurement. As a result, suppliers combining instrument accuracy, direct current capability, open interoperability and reporting-grade software are expected to capture the largest share of growth over the forecast period.