Uptime

These tables provide PV_Live (GB) API uptime metrics: The service is up when the PV_Live API responds:

• With a reasonable outturn: a non-null, non-zero outturn
• During Daylight Hours
• Promptly: within 10 minutes of the end of the most recent Settlement Period

In the latest interval, the tables show the uptime to date within that interval.

Daylight hours

The period during which we expect a non-zero outturn: From the end of the first complete Settlement Period after Sunrise to the end of the last complete Settlement Period before Sunset.

Settlement Period

This refers to each of the 48 half-hour periods in a single day; they are used for the trading and balancing of electricity from different suppliers.

Sunrise, Sunset

We use Sheffield as our reference point when determining sunrise and sunset times.