Longwell’s EC FanWall technology cuts AI data center CRAH fan energy by 38%, improving PUE from 1.42 to 1.28
Executive summary: Longwell’s EC FanWall precision cooling technology entered mass production, achieving a 38% reduction in CRAH fan energy use and improving the CRAH system PUE contribution from 1.42 to 1.28 for AI data centers. The gain directly lowers operating expenses and carbon footprint for hyperscale AI facilities, where cooling can represent a significant share of total power use, and supports tighter PUE targets demanded by customers and regulators.
Who is involved: Ningbo Longwell Electric Technology Co., Ltd. (Longwell), the top‑3 global precision cooling OEM, and unspecified AI data center customers adopting the technology.
Likely next: Longwell will scale production to meet hyperscaler demand, with potential qualification trials by major cloud providers in Q4 2026 and broader adoption through 2027 as AI workloads continue to grow.
Longwell (Ningbo Longwell Electric Technology Co., Ltd.) announced that its EC FanWall precision cooling solution has entered mass production after a 90‑day move from specification lock, delivering a 38% reduction in CRAH fan energy consumption for next‑generation AI data centers. The improvement lowers the cooling system’s contribution to PUE from a baseline of 1.42 to 1.28, indicating a meaningful step toward more energy‑efficient AI infrastructure. The announcement positions Longwell as a supplier aiming to meet the rising power‑density demands of hyperscale AI workloads while addressing operators’ cost and sustainability pressures.
Timeline
- — LONGWELL EC FanWall Technology Reduces CRAH Fan Energy 38% for Next-Generation AI Data Centers (PR Newswire)
Analysis — what this means
Likely next events
- Longwell to begin volume shipments to hyperscale customers Q4 2026
- Potential PUE‑based incentive programs in the EU to reward <1.30 PUE cooling solutions by mid‑2027
- Industry benchmarking of EC fan adoption in AI data centers expected in Q1 2027
Sectors affected
- AI data center cooling systems
- Precision cooling OEM market
- Hyperscale cloud and colocation operators
Regulatory implications
- EU Energy Efficiency Directive (recast) may set stricter PUE limits for new data centers, favoring sub‑1.30 cooling technologies
- U.S. DOE’s Advanced Manufacturing Office could fund pilot projects demonstrating >30% fan energy savings in AI facilities
- Corporate ESG reporting frameworks (e.g., SBTi) may encourage adoption of low‑PUE cooling to meet scope‑2 reduction targets
Historical parallels
- Introduction of variable‑speed drives in data center CRAC units circa 2015 reduced fan energy by ~20%
- Adoption of indirect evaporative cooling in 2018 lowered average data center PUE by 0.10–0.15
Key entities
Sources
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