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Service

Underperformance Diagnostics

Underperformance diagnostics finds out why a utility-scale PV plant is producing less than expected. sunalysis does root-cause analysis of production losses using the plant's own operating data and performance modeling, then quantifies each loss so you know what it costs and what to fix first.

In short

Root-cause analysis of production losses using plant data and modeling.

How it works

  1. 01

    Data analysis

    Ingest SCADA, meter, and weather data.

  2. 02

    Modeling

    Build expected performance baselines.

  3. 03

    Loss ID

    Isolate and quantify each loss category.

  4. 04

    Reporting

    Clear, defensible technical reports.

When to call

Plant underperforming vs P50

Unexplained production losses relative to modeled expectations.

Related case study

Mismatch analysis

Single-MPPT mixed-module mismatch

Modeled mixed thin-film and c-Si strings across multiple inverter blocks. Quantified Year 1 mismatch losses and identified a 3.2 A reverse circulating current safety risk during inverter shutdown.

10.4 GWh
annual mismatch loss and safety risk quantified
Read on the case studies page

Who it’s for

  • Asset owners and independent power producers
  • Operations and maintenance providers
  • Engineering, procurement and construction (EPC) firms
  • Project lenders and investors
  • Solar asset buyers and sellers

Tools and methods

  • PVsyst and SAM modeling
  • IV curve analysis
  • SCADA and data analytics
  • Reliability testing
  • Root cause analysis

Other services

Let’s get a pulse on your plant.

If your plant is underperforming or you need independent analysis, email sunalysis with your plant size and what’s going on.