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☀️
Solar Panel Wattage Calculator
Calculate your household energy needs and determine the right solar panel system
🏠 Household Appliances
Refrigerator
180W
Coffee Machine
800W
Microwave
1200W
Dishwasher
1800W
Toaster
1200W
Electric Stove
1500W
Electric Oven
2400W
Blender
500W
Food Processor
600W
Rice Cooker
700W
🔆 Solar Panel Configuration
High efficiency, premium quality panels
Peak sun hours: 5.8/day
Selected Panel Specifications
Power:
400W
Efficiency:
20%
Size:
2m²
Lifespan:
25 years
⚙️ Cost Settings
Your current electricity rate per kWh
📊 Solar System Results
Energy Consumption
0.0
kWh per day
0
kWh per month
0
kWh per year
Solar System Requirements
0
Solar Panels
Monocrystalline 400W
0.0
kW System Size
0 watts total
0
m² Roof Area
Required for installation
0.0
kWh Daily Output
System generation capacity
Cost Analysis
System Costs
Panel cost:$0
Installation:$0
Total System Cost:$0
Electricity Savings
Monthly savings:$0
Annual savings:$0
Payback period:NaN years
25-Year Lifetime Benefits
Total savings:
$0
CO₂ offset:
0.0 tonnes
Energy produced:
0 MWh
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🔆 Panel Types
Monocrystalline
• Highest efficiency (18-22%)
• More expensive
• Best for limited space
Polycrystalline
• Good efficiency (15-17%)
• Lower cost
• Best value for money
Thin Film
• Lower efficiency (10-13%)
• Cheapest option
• Flexible installation
⚡ Quick Facts
• 400W panel produces 1.2-3 kWh daily
• 15-20 panels needed for average home
• 30-45° optimal roof angle
• 25-year typical panel warranty
• 6-10 years average payback period
• 20-25% efficiency for modern panels
💰 Average System Costs
6 kW system:$8,000 - $11,400
8 kW system:$10,500 - $15,200
10 kW system:$13,300 - $19,000
12 kW system:$16,000 - $22,800
*Prices after federal tax credits (30% ITC)
Understanding Solar Panel Wattage
What Affects Solar Panel Output?
- Panel wattage: Higher wattage = more power per panel
- Solar irradiance: Amount of sunlight in your location
- Panel efficiency: How well panels convert sunlight to electricity
- Roof angle: 30-45° is optimal for most locations
- Shading: Even partial shading significantly reduces output
- Temperature: Panels work better in cooler temperatures
Before Installing Solar Panels
- Energy audit: Reduce consumption first
- Roof condition: Must be in good condition
- Local incentives: Check rebates and tax credits
- Net metering: Sell excess power back to grid
- HOA approval: Some neighborhoods have restrictions
- Multiple quotes: Compare installers and equipment
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