Amazon YYZ3 & YYZ4
Q3/Q4 2024 — Verified M&V Results
Two Amazon fulfillment centres. AWS-reported Q3 and Q4 2024 measurement and verification. Year-over-year comparison against Q3/Q4 2023 baseline.
Q3 & Q4 2024 · Green dashed = 15% guaranteed minimum · Source: PWV Amazon Case Study 2025
Q3 & Q4 2024 · *Valve removed September 5, reinstalled October 25, 2024 · Supplier attributes reduced Q4 savings to this interruption
The supplier report records a 17.36% year-over-year usage reduction in Q3 2024 and a 14.44% increase in Q4. It notes that the valve was removed on September 5 and reinstalled on October 25, and attributes reduced Q4 savings to that interruption. These quarterly comparisons do not isolate its effect from other changes at the facility.
Blue = YYZ3 · Teal = YYZ4 · Year-over-year vs Q3/Q4 2023 baseline
YYZ4: 17.36% year-over-year usage reduction in Q3 2024; 14.44% increase in Q4. The supplier attributes reduced Q4 savings to the September 5–October 25 valve interruption; quarterly comparisons do not isolate its effect from other facility changes.
Peak summer months (Jul–Sep) · Before: 2023 baseline · After: 2024 post-installation
Without the Smart Valve™, YYZ3 peaked at 1,107 m³/month. Post-installation the peak reduced to 457.30 m³ — a 58.69% reduction at the highest-use point in the year.
Q3/Q4 average · Source: AWS Measurement & Verification Report
The supplier report compares YYZ3 average flow of 5.26 gal/min in Q3/Q4 2023 with 2.74 gal/min in Q3/Q4 2024 — a 2.52 gal/min difference across the compared periods.
Key Findings
YYZ3 achieved 58.69% in Q3 2024 and 29.27% in Q4 2024 — a Q3/Q4 average of 43.98%, nearly three times the 15% contractual floor.
The supplier report records a 14.44% year-over-year usage increase in Q4 2024. It notes that the valve was removed on September 5 and reinstalled on October 25, 2024, and attributes reduced Q4 savings to that interruption. These quarterly comparisons do not isolate its effect from other changes at the facility.
The supplier report records a 17.36% year-over-year usage reduction in Q3 2024. The valve was removed on September 5, 2024, so it was not present for all of Q3. The quarterly comparison does not isolate the interruption's effect.
YYZ3's Q3 2024 result of 58.69% year-over-year reduction is reported in the AWS case-study dataset. Individual results vary.
The supplier report compares YYZ3 average flow of 5.26 gal/min in Q3/Q4 2023 with 2.74 gal/min in Q3/Q4 2024 — a 2.52 gal/min difference across the compared periods.
Without Smart Valve™, YYZ3 peaked at 1,107 m³/month (Jul–Sep 2023). With Smart Valve™ installed, that peak dropped to 457.30 m³ — the most impactful savings occur exactly when water costs are highest.
All data is year-over-year quarterly comparison against Q3/Q4 2023 baseline. YYZ3 Q3 2024: 58.69% reduction. YYZ3 Q4 2024: 29.27% reduction. YYZ3 Q3/Q4 average: 43.98%. YYZ4 Q3 2024: 17.36% reduction. YYZ4 Q4 2024: 14.44% usage increase (valve removed Sept 5, reinstalled Oct 25). Smart Valve™ installed at both sites June 2024. Cost estimations based on $3.00/m³ for water only, excluding sewer fees. Source: PWV Amazon Case Study 2025.
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