This is the link to PVWatts: http://pvwatts.nrel.gov

 

Here are the steps on how we calculate the solar production using PVWatts 5:

 

1. Enter the customer’s address.

 

2. Fill in the inputs based on the data you defined in the Platform:

  • System Size
  • Array type
  • System Losses – to obtain this, the formula is [(1 – Derate Factor) * 100%]
  • Tilt/Slope
  • Azimuth
  • Inverter Efficiency

 

PVWatts