मुफ्त रैखिक रेगुलेटर दक्षता कैलकुलेटर
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Required Panel Wattage
13.3 W
Required Panel Wattage vs Daily Energy Needed
सूत्र
## Solar Panel Sizing ### Formula **Panel Watts = Daily Energy / (Sun Hours x Efficiency)** Efficiency accounts for charge controller losses, wiring, temperature derating, and panel degradation. Typical system efficiency is 70-80%.
हल किया गया उदाहरण
50 Wh daily energy need, 5 peak sun hours, 75% system efficiency.
- 01Required generation = 50 / 0.75 = 66.7 Wh
- 02Panel watts = 66.7 / 5 = 13.3 W
- 03At 12 V: current = 13.3 / 12 = 1.11 A
अक्सर पूछे जाने वाले प्रश्न
What are peak sun hours?
Equivalent hours of full 1000 W/m2 sunlight per day. Varies by location and season, typically 3-7 hours.
Why 75% efficiency?
Losses from charge controller (5-15%), wiring (2-5%), temperature (5-15%), and dust/shading (5-10%) add up.
MPPT vs PWM charge controller?
MPPT controllers are 95-98% efficient. PWM is simpler but 75-85% efficient. MPPT gains are largest when panel voltage exceeds battery voltage.
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