Using PVWatts to analyze an annual AC Energy of a single PV module?

I was wondering can PVWatts be used to analyze an annual AC Energy of a single PV module?
Your online PVWatts documentation provides the following information:


'PVWatts® can model any size of array, from residential rooftop systems to large ground-mounted power generation systems.'


What about a single PV module, not an array?

Also does it matter how modules are connected in array (parallel, series)?

Hello,

PVWatts and SAM are designed to model larger photovoltaic systems than ones with one or two modules. However, there is no upper or lower limit on the size of the system that SAM can model, so you could model a single module by using the module capacity as the system size. For example, to model a 100 W module, you would set the system capacity to 0.1 kW. Note that the default loss values are appropriate for a larger system, so you may want to make some changes to those values. For example, the mismatch and wiring losses might be less than the default values.

PVWatts does not consider how modules are connected. It basically models the array as a single large module with the capacity you specify, assuming that it operates at its maximum power point.

Best regards,
Paul.

Dear Mr. Gilman,

Appreciate your prompt reply.

Took a look at System losses and both Wiring and Mismatch have default values of 2%.

Which lower values would you recommend for a 100 Watts PV module? 1% for both Wiring and Mismatch?

I don't have a specific recommendation of loss values. For a single module, there would be no mismatch losses, so you could set that value to zero. You can experiment with different values for the wiring loss to see how much of an impact it has on your results -- if it does not affect them very much, then you don't need to worry too much about getting the value exactly right.

Best regards,
Paul.

My gratitude for the reply.
Sincere regards,
Bernard.