What the measurement records
Irradiance is the solar power reaching a surface at a point in time, commonly expressed in watts per square metre. It gives operating context to other observations.
Measure the available sunlight
Add real operating context to a solar performance review
On-site irradiance measurement records the solar energy reaching the array during the test period and helps place other observations in the right environmental context.
Overview
Add real operating context to a solar performance review
Solar output changes with the available sunlight. An irradiance test provides a time-specific field measurement that can support inspection, commissioning or troubleshooting work. We record the measurement setup and relevant site conditions so the result can be interpreted appropriately.
Important contextA short field test represents the conditions during the measurement period and should not be treated as a long-term energy-yield forecast.
Inspection scope
What the field work can include.
The final method depends on access, system state, safety requirements and the objective agreed before testing.
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01
Measurement objective and test location review
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02
Instrument placement aligned with the agreed scope
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03
Time-specific irradiance readings
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04
Relevant weather and operating observations
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05
Recorded results for use with related system checks
How to interpret the service
Useful evidence starts with the right context.
Meter placement
The sensor is positioned to represent the array plane or another agreed reference point, with obstructions and temporary shading considered.
Reading the result
Measurements are interpreted with the test time, weather, system state and equipment scope. A short reading is not a long-term energy forecast.
Supporting measurements
Where relevant, module temperature, ambient temperature, inclination and orientation can be recorded to make the field result easier to understand.
Before the site visit
Questions about this test.
Irradiance measurement records how much solar energy is reaching the array during the test period. It provides useful operating context for an inspection or performance investigation, but a short measurement should not be treated as a long-term energy-yield forecast.
The test should match the question you need to answer. Thermography looks for unusual heat patterns, irradiance measurement records available sunlight, grounding tests assess the path to earth, and insulation resistance testing checks suitable isolated circuits for leakage paths. We review the concern before recommending a scope.
The agreed output can include the scope, relevant site conditions, observations, recorded measurements, supporting images where applicable, limitations and recommended next actions. The exact report format is confirmed before the visit.
Start with a site assessment
Schedule a irradiance test discussion.
Share the system type, site location and condition you need to investigate. We will use that context to shape the next conversation.