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Solar PV — Monitoring

Solar PV, watched down to the string.

Utility-scale fields, C&I rooftops and hybrid sites in one view. Alpha calculates what every string and inverter should deliver and tells you as soon as one falls behind, with the reason why.

PV output now61.4MW
Today412MWh+1.8% vs expected
050709111315171921
MeasuredExpected
Performance ratio (PR)84.2%30 days
Availability99.3%30 days
Inverter efficiency98.1%30 days
Curtailed14.2MWhMonth to date

String level

Every string compared with its neighbours.

A blown fuse, a shaded block or a broken connector disappears in the inverter totals. Alpha compares each string with the other strings at equal irradiance. Small losses show up within hours, not at the annual inspection.

Zwolle Hessenpoort · INV-07

String current · 13:00
Current per string on INV-07, compared with the other strings on the same input
StringCurrentvs neighboursStatus
S-099.62 A+0.4%Producing
S-109.55 A−0.3%Producing
S-119.58 A0.0%Producing
S-125.66 A−41.0%Underperforming
S-139.60 A+0.2%Producing
S-149.51 A−0.7%Producing

Alpha AI for solar PV

Outage, derating, curtailment or a grid fault: Alpha knows the difference.

Alpha splits lost energy by cause. You dispute curtailment with evidence and send a crew out only for real faults.

warnZWOLLE HESSENPOORT · INV-07 · S-1213:04:10

String S-12 is producing 41% less than its neighbours

Irradiance and temperature are equal across the block.

Alpha AI · Root cause83% confidence

Blown string fuse on S-12, not shading.

Replace the fuse at the next visit. The loss is now about 0.4 MWh per day.

  • S-12 current dropped in one step09:17:44
  • Voltage unchanged; one parallel path openstring voltage
  • No shading pattern across the dayirradiance

What Alpha watches on every PV site

Strings

Current and voltage per string, compared with its neighbours at equal irradiance.

Inverters

Efficiency, temperature, fault codes and trips, set against grid data.

Dataloggers

Connection and data delivery per logger, with an alarm when data stops.

Performance

PR per day and per month, also calculated from satellite irradiance.

Clipping and curtailment

Energy lost to inverter limits and grid orders, kept apart from faults.

Availability

Technical and uncorrected per inverter, with a quarter-hour timeline.

Weather

Satellite and on-site irradiance, temperature and wind speed.

Grid

Voltage, frequency and export limits.

Hybrid PV + BESSStorage on site as well? It is in the same view.Explore storage monitoring →

See your own fleet in Alpha.

A 30-minute demo with your own data. Before the call, we connect a few of your sites.

Book a demo