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This is what Solar Rx shows for a real system. Everything below is sample data, so you can see how it works before you create a free account.
Sunnyvale Home Array
Sunnyvale, CA
Est. annual production
16,510 kWh
Est. monthly average
1,376 kWh
Efficiency rating
92%
Estimated production by month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
System details
- Panels
- 28
- Panel wattage
- 400 W
- System size
- 11.2 kW
- Inverter
- String inverter
- Panel direction
- South
- Roof tilt
- 22°
- Shading
- Minimal
- Location
- Sunnyvale, CA
Recommendations
- Rinse the array each spring — dust and pollen are the most common cause of a 3–5% production dip.
- Afternoon shading on the southwest corner trims roughly 4% off output; trimming that tree back would recover most of it.
- Compare this estimate against your installer's Year 1 production guarantee before assuming a fault.
Estimates depend on the details entered and on local weather, so treat them as guidance rather than a guarantee.