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5 customer measured cases

All data come fromReal local customers in Xi'an, Shaanxi. CoveringRestaurant, internet café, billiards club, retaileracross four industries, with three independent data sources—daily meter records, direct 50× CT meter readings, and State Grid app history—all traceable and verifiable.

5
Real customer cases
4
Industries covered
3
Independent data source
14.6%
Highest single-store savings
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🍜
Restaurant store
14.60%
Feihong Roujiamo, Hejiaying store
12-day daily comparison
🎮
Internet café
≈60 kWh/day
Wangjulong Internet Café
February vs. January comparison
🎱
Billiards club
9.82%
Snooker club
Three-stage comparison method
🏢
Retailer · State Grid app
19.7%
Hengda Lüzhou store
Three-year same-period comparison
🏪
Retailer · 24 days
≈92 kWh/day
Yangjia Huitong store
24 consecutive days of records
CASE 01
🍜 Restaurant industry Daily manual meter reading 12-day comparison

Feihong Roujiamo (Hejiaying store): before/after usage comparison

A typical restaurant case: concentrated load from kitchen equipment, refrigerators and A/C, with the A/C beginning to be used after the upgrade during the comparison period—savings were significant.

Customer background

Product used:Zhijiexin ZX-01 (AI Intelligent Power Loss Regulator)
Customer name:Feihong Roujiamo (Hejiaying store)
Industry:Restaurant / Chinese fast food
Meter-reading method:Daily manual meter reading
Comparison period:12 days each
Comparison basis:December (no A/C) vs. January (A/C on)
Key variable:Post-upgrade, under more power-hungry conditions

Key data

4341
Pre-upgrade total (kWh)
4096
Post-upgrade total (kWh)
−245
Total savings (kWh)
14.60%
Calculated savings

Daily meter records

Pre-upgrade dateUsage (kWh)Post-upgrade dateUsage (kWh)Difference (kWh)
Dec 6389Jan 6357−32
Dec 7367Jan 7334−33
Dec 8346Jan 8348+2
Dec 9338Jan 9323−15
Dec 10342Jan 10325−17
Dec 11327Jan 11342+15
Dec 12369Jan 12351−18
Dec 13410Jan 13341−69
Dec 14391Jan 14350−41
Dec 15343Jan 15340−3
Dec 16363Jan 16345−18
Dec 17356Jan 17340−16
Cumulative4341Cumulative4096−245
Daily avg361.75Daily avg341.33−20.42

Data notes

📌 Key note:The comparison periods are 12 days each in December and January, where the key variable is that the A/C began being used in January (post-upgrade) but not in December (pre-upgrade). In other words,Post-upgrade, usage fell even under more power-hungry conditions, for calculated savings of 14.60%. Removing the A/C effect, the actual savings may be higher.

Savings estimate (reference)

20.4 kWh
Daily avg savings
612 kWh
Monthly savings (estimated)
≈¥490
Monthly savings (¥0.8/kWh)
≈¥5,880
Annual savings (reference)

* Savings estimates use the local commercial/industrial tariff of ¥0.8/kWh; actual rates follow the local grid company's bill.

Industry insight

Why do restaurants see good savings?The concentrated kitchen load is key—freezers, refrigerators, range hoods, induction cookers and A/C form a large inductive load with a generally low power factor (mostly 0.6–0.8). Restaurant equipment also starts and stops frequently, with large inrush currents. By compensating reactive current locally, Zhijiexin lowers both line losses and transformer-capacity usage.Chinese fast-food, hotpot and barbecue shops of similar scale can refer to this case's savings range.
CASE 02
🎮 Internet café / e-sports Daily manual meter reading Monthly comparison

Wangjulong Internet Café: January vs. February 2026 electricity comparison

Settings with high-power PCs and monitors running long hours, where switch-mode loads have a low power factor—a typical fit for reactive-compensation equipment.

Customer background

Product used:Zhijiexin ZX-01 (AI Intelligent Power Loss Regulator)
Customer name:Wangjulong Internet Café
Industry:Internet café / e-sports venue
Meter-reading method:Daily manual meter reading
Device installation date:February 5, 2026
Accounting period:Feb 11 (one week later)
Comparison basis:January (no device) vs. February (device installed)

Key data

19112.30
January total (kWh)
15587.89
February total (kWh)
616.53
January daily avg (kWh)
556.71
February daily avg (kWh)
≈60
Daily avg savings (kWh)

Data notes

📌 Data rigor:February has 28 days, January 31; February's usage already excludes 2,574 kWh from the first 4 days (February 1–4, before installation). The device was installed on February 5, with official accounting beginning February 11. The customer's original records explicitly note 'average daily saving of 60 kWh.'

Savings estimate (reference)

60 kWh
Daily avg savings
1,800 kWh
Monthly savings (estimated)
≈¥1,440
Monthly savings (¥0.8/kWh)
≈¥17,280
Annual savings (reference)

Industry insight

Why is an internet café an 'ideal customer' for a power saver?Three features combined: (1) Large load—PCs average 300–500W and monitors 25–50W, about 400–600W per seat, so a hundred-seat venue uses hundreds of kWh per day; (2) Steady operating hours—running near full load most of the time, so the savings scale up sustainably; (3) Switch-mode supplies have a low power factor—PC power supplies are non-linear loads with a power factor usually between 0.6 and 0.7 and high harmonic content.For internet cafés or e-sports venues with 50+ seats, multiple ZX-01 units in parallel are recommended.
CASE 03
🎱 Billiards club Three-stage comparison method 50× CT meter Most rigorous methodology

Snooker Club: three-stage comparison test report

Zhijiexin customer cases, power saver measured cases, restaurant energy-saving case, internet café energy-saving case, factory energy-saving case, Zhijiexin savings results, Zhijiexin savings rate, Xi'an power saver cases

Customer background

Product used:Zhijiexin ZX-01 (AI Intelligent Power Loss Regulator)
Customer name:Snooker club
Industry:Entertainment / billiards
Meter-reading method:Daily meter reading + direct 50× CT reading ×50
Test method:Three-stage comparison
Test period:Mar 5 – Apr 29, 2026
Test purpose:Remove the A/C effect to extract the device's actual savings

Three-stage comparison data

StageTime periodDevice statusA/C statusDaily avg meter readingActual usage (×50)
Stage 1Mar 5 – Mar 31Not installedOff131.15 kWh6,557.5 kWh
Stage 2Apr 1 – Apr 20InstalledOff98.47 kWh4,923.5 kWh
Stage 3Apr 20 – Apr 29InstalledOn35.62 kWh1,781 kWh
Same-period comparisonApr 20 – Apr 29InstalledOff (reference)19.5 kWh975 kWh

Core conclusion

9.82%
Device's actual savings
≈¥8,022.7
Annual savings (estimated)
50×
CT meter ratio
3 stages
Comparison removes variables

Data notes

📌 Methodology highlight:The meter is a 50× CT meter, so actual usage = reading × 50. Using a three-stage comparison (no device / device with A/C off / device with A/C on), the A/C's effect on the savings rate is actively removed to extract the device's actual savings of about 9.82%, saving about per year ¥8,022.7(estimated at the local commercial/industrial tariff of ¥0.8/kWh). This comparison method is one of the most rigorous testing approaches for power-saving equipment.

Industry insight

Why is a billiards club worth installing a power saver?A combined load of billiard-table lighting (200–400W per table) + central A/C + bar refrigerators + audio equipment. Billiard-table lighting is resistive but uses many fixtures for long hours (continuously from 6pm to 2am); A/C and refrigerators are typical inductive loads. The overall power factor is low, and nighttime tariffs are higher.Similar KTV, bars, chess-and-card rooms and board-game cafés can refer to this type of use case.
CASE 04
🏢 Retailer State Grid app data Three-year same-period comparison Official data source

Hengda Lüzhou store (Nanyuan Central Plaza, Beilin District, Xi'an): three-year same-period comparison

This case's data source isState Grid app usage history—the customer's official bill data, the most credible. A three-year same-period comparison removes seasonal fluctuation.

Customer background

Product used:Zhijiexin ZX-01 (AI Intelligent Power Loss Regulator)
Customer name:Hengda Lüzhou store
Location:Nanyuan Central Plaza, Beilin District, Xi'an
Industry:Retailer / general retail
Data source:State Grid app usage history
Comparison basis:January & February of 2024 / 2025 / 2026
Raw data:Daily meter records from Feb 1 – Mar 3, 2026 available

Three-year same-period usage comparison

Month2024 total (kWh)2024 daily avg2025 total (kWh)2025 daily avg2026 total (kWh)2026 daily avg
January644420766112136459.81208
February571020355201974442.47158

Core conclusion

−50 kWh/day
Savings vs. January
−39 kWh/day
Savings vs. February 2025
24%
Month-on-month savings
19.7%
Year-on-year savings

Data notes

📌 Data-source notes:All usage data in this case come from official history provided by the State Grid app—the customer's own electricity-bill data,Third-party, tamper-proof. February 2026 averaged 158 kWh/day—39 kWh/day less than February 2025 (197 kWh) and 50 kWh/day less than January 2026 (208 kWh). The customer also kept complete original meter records from February 1 to March 3, 2026 for review.

Industry insight

Why is a three-year same-period comparison more credible than a single month?Usage is affected by season, revenue, holidays, weather and other factors. A single-month comparison can be skewed by chance, butA three-year same-period comparison effectively reveals abnormal changes—February 2024 averaged 203 kWh/day, February 2025 197 kWh (similar, natural fluctuation), and February 2026 dropped sharply to 158 kWh, clearly off the historical baseline, with the only change being the installation of the Zhijiexin device. This 'long-period, multi-dimension, official-data-source' comparison is the gold standard for evaluating energy savings.
CASE 05
🏪 Retailer 24 consecutive days Daily meter reading Stability check

Yangjia Huitong store: daily savings record after the upgrade

24 consecutive valid record days of daily meter data, with daily savings steady between 71 and 113 kWh, proving the savings are is steady and repeatable, not occasional fluctuation on particular days.

Customer background

Product used:Zhijiexin ZX-01 (AI Intelligent Power Loss Regulator)
Customer name:Yangjia Huitong store
Industry:Retailer
Meter-reading method:Daily cumulative meter readings
Record period:Feb 13 – Mar 8
Valid record days:24 valid record days
Record method:Daily savings difference, manually calculated

Key data

≈92
Daily avg savings (kWh)
−2200
24-day cumulative savings (kWh)
71 ~ 113
Daily savings range (kWh)
100%
Savings on valid record days

Daily savings record

DateMeter readingDifference (kWh)DateMeter readingDifference (kWh)
Feb 1328278— (baseline)Feb 2529388−82
Feb 1428377−99Feb 2629470−82
Feb 1528484−107Feb 2729559−89
Feb 1628595−111Feb 2829650−91
Feb 17HolidayMar 129757−107
Feb 1828705−110Mar 229845−88
Feb 1928805−100Mar 329919−74
Feb 2028905−100Mar 429999−80
Feb 2129006−101Mar 530072−73
Feb 2229098−92Mar 630143−71
Feb 2329193−95Mar 730241−98
Feb 2429306−113Mar 830339−98

Data notes

📌 Stability analysis:February 13 is the baseline reading day; from February 14, the meter's cumulative reading and its difference from the baseline are recorded daily. Across the 24 valid record days,Every dayall show savings, with daily savings steady between 71 and 113 kWh, about 92 kWh/day. February 17 was a customer holiday with no reading (noted in the table). This steady daily data is the most direct proof that the savings are repeatable.

Savings estimate (reference)

92 kWh
Daily avg savings
2,760 kWh
Monthly savings (estimated)
≈¥2,208
Monthly savings (¥0.8/kWh)
≈¥26,496
Annual savings (reference)

Industry insight

Why does steady daily data matter?The most common trap in evaluating a power saver is 'cherry-picking'—highlighting the best few days for marketing while actual results vary widely. The value of this case is:24 consecutive days, complete data every day, savings every day, with savings in a relatively stable range (71–113 kWh). This shows the savings are structural and sustainable, not occasional fluctuations.
FIT MATRIX

Is your industry a good fit for Zhijiexin?

A reference on industry fit, compiled from measured cases and power-quality principles.

🍜 Restaurant store
Concentrated load from kitchen refrigerators, fridges, A/C and range hoods—many inductive loads with a generally low power factor (0.6–0.8).Measured cases already include Feihong Roujiamo's Hejiaying store and the Hengda Lüzhou store.
⭐ High fit
🎮 Internet café / e-sports venue
High-power PCs, monitors and A/C run long hours, with switch-mode loads having a low power factor and high harmonic content.A Wangjulong Internet Café case is already available.
⭐ High fit
🏨 Hotel / B&B
Central A/C, elevators, laundry and guest-room equipment run 24 hours with many motor-type inductive loads and high annual usage.An installation case at Chunzhen Resort Hotel, Yanta District, Xi'an is already available.
⭐ High fit
🎱 Entertainment venues (billiards/KTV/bars)
A combined load of lighting, audio, A/C and refrigerators, with long nighttime hours and higher tariffs.A Snooker Club three-stage comparison case is already available.
⭐ High fit
📚 Education & training center
Concentrated load from classroom A/C, lighting and office equipment, with large seasonal swings but a relatively small per-store scale.Installation cases already include the Sunshine English Sanqiao branch and Huba campus.
Medium-high fit
🏭 Factory workshop
Motors, compressors, welders and variable-frequency drives create coexisting inductive and non-linear loads with a generally low power factor, and some industries have harmonic pollution. Multi-unit parallel deployment is needed.
⭐ High fit
🏪 Supermarket / convenience store
Refrigeration, freezers, A/C and lighting run 24 hours, with a high share of inductive load.Measured cases already include the Yangjia Huitong store and a restaurant at Yuxi Living Plaza, Lianhu District.
⭐ High fit
🏠 Pure residential home
Home appliances are mostly resistive (water heaters, rice cookers, lighting) with a high power factor, not subject to power-factor charges, leaving limited savings potential.
To be assessed
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