Product · HVAC & Energy
Product · InnDex 38 · Evidence provided · High specification risk
Non-invasive clip-on current sensors that harvest energy and wirelessly report circuit-level power data without rewiring.
Pressac manufactures passive current-monitoring sensors that clamp onto electrical conductors (1–600A range) and derive power from the electromagnetic field to eliminate battery maintenance. Data transmits via EnOcean wireless protocol to gateways and then to cloud or on-premise platforms. It directly addresses the retrofit sub-metering friction point: achieving circuit-level visibility in existing buildings without panel access, rewiring, or ongoing battery replacement cycles.
Pressac's clip-on sensors solve a persistent retrofit sub-metering problem: achieving circuit-level energy visibility in existing buildings without panel rewiring, de-energization, or the operational overhead of battery replacement cycles. The electromagnetic energy harvesting approach is the differentiating feature — sensors derive power from the conductor they monitor, eliminating the maintenance burden that typically degrades sensor network coverage over time. The EnOcean wireless backbone is genuinely mature, with documented deployment across over one million buildings globally, which reduces protocol risk compared with bespoke IoT ecosystems. One deployment reference is on record, though scale-deployment evidence in diverse retrofit building environments is still limited, and accuracy variability across different panel configurations and conductor types is flagged as a moderate risk. The practical constraints are installation access — physical conductor access is still required, which means sealed or inaccessible panels remain problematic — and low-draw circuit limitations where harvesting performance degrades below approximately 10A. For energy managers or design teams targeting performance gap closure in occupied existing buildings, this is among the lower-friction sub-metering approaches available; the specifier due diligence is confirming gateway placement, signal propagation across the specific panel layout, and integration with the target platform before committing to a site-wide rollout.
EnOcean protocol is mature and well-evidenced across 1M+ buildings. Pressac's clip-on mechanism and energy harvesting design are credible for retrofit use, but independent large-scale deployment data in AEC is absent. Sensorfact case study (10% savings) is self-reported by Pressac and lacks third-party audit. No evidence found of peer-reviewed validation, independent performance benchmarks, or multi-site longitudinal studies. Source URL yielded tracking code snippet, not product specifications; core claims rest on company marketing and one vendor reference.
#sub-metering #retrofit #non-invasive #energy-harvesting #wireless-iot #enOcean #circuit-level #building-energy