1. System Requirements for 24V 700W Induction Cooktop (2 Hours Per Day)

1. Cooktop Power:
   • 700W induction cooktop running for 2 hours per day.
2. Energy Consumption Calculation:
   • Energy required per day (Wh) = Power (W) × Cooking hours (h)
     • 700W × 2 hours = 1400Wh per day.

2. Battery Requirements

1. Battery Voltage:
   • System operates on 24V.
   • Using 12V batteries, they must be connected in series to reach 24V.
2. Battery Capacity Calculation:
   • Required Battery Capacity (Ah) = Total Energy (Wh) ÷ System Voltage (V)
   • 1400Wh ÷ 24V = 58.33Ah required.
3. Number of Batteries:
   • Each 12V battery has 100Ah capacity.
   • To achieve 24V, batteries are paired in series (2 batteries per set).
   • Total batteries needed = 2 (12V 100Ah batteries).
4. Battery Cost Calculation:
   • Estimated cost of 12V 100Ah battery = $0.146 per watt.
   • Cost per battery = $0.146 × (12V × 100Ah) = $175.20 USD.
   • Total cost for 2 batteries = $175.20 × 2 = $350.40 USD.

3. Solar Panel Requirements

1. Daily Solar Energy Requirement:
   • 1400Wh per day.
2. Solar Panel Output:
   • Each 200W solar panel generates about 1600Wh per day (200W × 8 hours sunlight).
   • Panels Required = Total Energy / Panel Output
   • 1400Wh ÷ 1600Wh ≈ 0.88 → 1 solar panel needed.
3. Solar Panel Cost Calculation:
   • Each 200W solar panel costs $60 USD.
   • Total cost = 1 × $60 = $60 USD.

4. Charging Controller Requirements

1. Current Calculation for Controller:
   • Required current = Total Power (W) ÷ Voltage (V)
   • 700W ÷ 24V = 29.2A.
   • A 35A charging controller is sufficient.
2. Controller Cost Calculation:
   • Estimated cost of 35A Charging Controller = $10 USD.

5. Cable Requirements and Cost

1. Required Cable Lengths:
   • Solar Panel to Charging Controller = 15 meters.
   • Charging Controller to Battery = 1.5 meters.
   • Battery to Cooktop = 1.5 meters.
   • Total cable required = 18 meters.
2. Cable Cost Calculation:
   • Estimated cost per meter = $1 USD.
   • Total cost = 18 × $1 = $18 USD.

6. Induction Cooktop Cost

• 24V 700W Induction Cooktop Cost = $60 USD.

7. Total Cost Breakdown (in USD)

Summary

For the 24V 700W induction cooktop, with 2 hours of cooking per day, the total cost breakdown (in USD) is approximately $498.40. This includes:

• 1 Solar Panel (200W each): $60.00
• 2 Acid Batteries (12V, 100Ah each): $350.40
• 35A Charging Controller: $10.00
• Cables: $18.00
• Induction Cooktop (24V 700W): $60.00

This setup ensures a cost-effective, solar-powered, and eco-friendly cooking solution for daily use.