Company Holiday

Our offices will be closed on Monday 21st June for a company holiday. We are giving everyone the day off to say thank you for their commitment, dedication and hard work throughout the COVID-19 pandemic.

Our offices will reopen as usual on Tuesday 22nd June.

The shape of the I-V curve varies with irradiance and below a critical level of irradiance the curve shape changes dramatically. This can result in errors in evaluating the performance of the system. Poor results may be expected where measurements are taken in low irradiance.

PV string and array performance measurements should be performed at stable irradiance conditions of at least 400 W/m2 as measured in the plane of the array. For measurements to be converted to STC, IEC 61829:2015 Photovoltaic (PV) array —On-site measurement of current-voltage characteristics recommends that the total in-plane irradiance shall be at least 700 W/m2.

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