[Customer Background]
Tropical coastal city: Frequent outages, high bills, medical dependency
In a sweltering coastal city near the equator, a three-generation household of seven faced daily 3-4 hour power outages. Two elderly members required oxygen concentrators, while three school-age children needed consistent power for studies. Air conditioners, oxygen machines, and computers ran almost 24/7. Diesel generator noise disrupted sleep, and monthly bills exceeded $400. The family urgently needed a system to handle simultaneous high-power loads and eliminate diesel dependence.
[Design Philosophy]
Dual Inverters + High-Capacity Storage: Ktech Energy built a "dual-inverter, high-storage" energy hub with dynamic load balancing and emergency reserves:
Ktech Product Configuration Proposal
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ESS Solution
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No.
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Equipment
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Mode
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Qty
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Configuration Rationale
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1
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Solar Panel
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550W
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16
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16×550W panels (8.8kW total) installed on roofs and shade structures, covering daily consumption with surplus stored.
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2
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Inverter
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KE-5K5L1EF
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2
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2×Ktech 5.5kW hybrid inverters in parallel support 3×3HP ACs, 2×oxygen concentrators, and full-house lighting.
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3
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Battery
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ESS NP-WG10
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1
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1×Ktech NP-WG10 battery (10kWh, 80% DoD) ensures nighttime operation, prioritizing oxygen concentrators for 48+ hours during outages.
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[Design Philosophy]
Historical Data Prediction + Voice Control: Key devices stay online in extreme weather condition
The system uses "dynamic balancing": solar energy charges the battery to 70% first, then powers daytime loads. At sunset, it switches to storage, with the battery management system prioritizing critical loads like oxygen machines and refrigerators. During cloudy days, historical data predicts reserves, allocating 20% as emergency backup. Users adjust settings via apps.
[Customer Feedback]
"Bills dropped 80%, oxygen machines never stop, diesel era over!"
"During outages, chaos turned into calm—even kids check battery levels via voice assistant!" Post-installation, bills plummeted, and diesel noise vanished. "Ktech’s inverters are unstoppable engines. The oxygen machines haven’t missed a second, and the kids study without fear of blackouts."
