Availability

Uptime (in minutes): time when the device is producing and meets the following conditions:

• Power is higher than the minimum threshold configured in the system.

• Irradiance is higher than the minimum threshold configured in the system.

• (Optional) Device is communicating

Irradiance uptime (in minutes): time when the device is expected to be producing and meets the following conditions:

• Irradiance is higher than the minimum threshold configured in the system.

• (Optional) Device is communicating.

Time when a device is producing.

Total time when the device is expected to be producing.

Single device:

• Multiple periods:

  $\mathrm{Av}(\%)=\frac{\underset{D{\mathrm{ay}}_{i=1}}{\overset{D{\mathrm{ay}}_{i=n}}{\sum }} {\mathrm{Uptime}}_{{\mathrm{Day}}_i}}{\underset{D{\mathrm{ay}}_{i=1}}{\overset{D{\mathrm{ay}}_{i=n}}{\sum }}\mathrm{Irradiance} {\mathrm{Uptime}}_{{\mathrm{Day}}_i}}*100$

Multiple devices:

• Daily aggregation:

  $\mathrm{Av}(\%)=\frac{\frac{\left(\underset{{\mathrm{Av}}_{j=1}}{\overset{{\mathrm{Av}}_{j=m}}{\sum }}{P}_{p_{{\mathrm{Av}}_j}}*{\mathrm{Uptime}}_{{\mathrm{Av}}_j}\right)}{\underset{{\mathrm{Av}}_{j=1}}{\overset{{\mathrm{Av}}_{j=m}}{\sum }}{P}_{p_{{\mathrm{Av}}_j}}}}{\frac{\left(\underset{{\mathrm{Av}}_{j=1}}{\overset{{\mathrm{Av}}_{j=m}}{\sum }}{P}_{p_{{\mathrm{Av}}_j}}*{\mathrm{IrradianceUptime}}_{{\mathrm{Av}}_j}\right)}{\underset{{\mathrm{Av}}_{j=1}}{\overset{{\mathrm{Av}}_{j=m}}{\sum }}{P}_{p_{{\mathrm{Av}}_j}}}}*100$

• Multiple periods:

  $\mathrm{Av}(\%)=\frac{\underset{D{\mathrm{ay}}_{i=1}}{\overset{D{\mathrm{ay}}_{i=n}}{\sum }}\mathrm{Total} \mathrm{Uptime} {\mathrm{Agg}}_{{\mathrm{Day}}_i}}{\underset{Da{y}_{i=1}}{\overset{Da{y}_{i=n}}{\sum }}\mathrm{Total} \mathrm{Irradiance} \mathrm{Uptime} {\mathrm{Agg}}_{{\mathrm{Day}}_i}}*100$