LONGWELL's EC FanWall cuts CRAH fan energy use by 38%, boosting efficiency for next-generation AI data centers
Executive summary: LONGWELL (Ningbo Longwell Electric Technology Co., Ltd.) launched its EC FanWall product, achieving a 38% reduction in CRAH fan energy consumption and improving PUE contribution from 1.42 to 1.28 for next‑generation AI data centers. Cooling accounts for a large share of data‑center energy use; a 38% fan‑energy cut directly lowers operating costs and carbon intensity for AI workloads that demand high‑density compute.
Who is involved: LONGWELL; a top‑three global precision‑cooling OEM (unnamed); data‑center operators deploying next‑gen AI infrastructure.
Likely next: The OEM will ramp volume production in Q4 2026; other hyperscalers are expected to evaluate the FanWall for upcoming AI cluster deployments; industry groups may reference the 1.28 PUE figure in new efficiency benchmarks.
LONGWELL’s EC FanWall technology delivers a 38 % reduction in the energy consumed by Computer Room Air Handler fans, a component that traditionally accounts for a notable share of a data center’s cooling load. For AI‑focused facilities, where rack power densities are rising rapidly, any decrease in fan electricity translates directly into lower operating expenses and a smaller carbon footprint. The fact that a leading global precision‑cooling OEM moved from specification lock to full‑scale production within ninety days underscores the technology’s readiness for deployment at scale and suggests that supply‑chain constraints are not a barrier to adoption. The announced improvement in the CRAH subsystem’s contribution to Power Usage Effectiveness—from 1.42 to 1.28—provides a concrete metric of how the fan‑level savings ripple up to overall facility efficiency. A PUE shift of that magnitude can meaningfully affect the total energy budget of hyperscale campuses, making the EC FanWall an attractive lever for operators seeking to meet sustainability targets without compromising cooling performance. In the near term, we can expect broader qualification exercises by major cloud and AI providers, potential integration with advanced airflow management systems, and possibly the emergence of industry benchmarks that reference this specific fan‑energy reduction as a baseline for next‑generation data‑center designs.
Timeline
- — La tecnología LONGWELL EC FanWall reduce el consumo energético de los ventiladores CRAH en un 38 % (PR Newswire)
- — Die LONGWELL EC-FanWall-Technologie senkt den Energieverbrauch von CRAH-Ventilatoren um 38 % in KI-Rechenzentren der nächsten Generation (PR Newswire)
- — La technologie FanWall de LONGWELL EC permet de réduire de 38 % la consommation énergétique des ventilateurs CRAH des centres de données IA de nouvelle génération (PR Newswire)
- — LONGWELL EC FanWall Technology Reduces CRAH Fan Energy 38% for Next-Generation AI Data Centers (PR Newswire)
Analysis — what this means
Likely next events
- Mass‑production ramp‑up by the OEM in Q4 2026
- Potential inclusion of FanWall specs in Open Compute Project (OCP) rack‑level designs by early 2027
- EU Data Centre Energy Efficiency Directive reporting deadline (June 2027) may cite the 1.28 PUE improvement
Sectors affected
- Data‑center infrastructure
- Precision cooling OEMs
- AI hardware and hyperscale operators
Regulatory implications
- EU Energy Efficiency Directive for data centres (2025/231) encourages PUE reductions; FanWall could help operators meet targets
- U.S. DOE Better Buildings Challenge may reference the 38% fan‑energy saving as a best‑practice case
Historical parallels
- Google’s 2018 TPU liquid‑cooling retrofit cut cooling energy ~30%
- Facebook’s 2020 Open Compute Project ‘Cold‑Plate’ rack design reduced fan power ~25%
Key entities
Sources
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