Next generation solar testing

Eternalsun Spire provides technology, services and knowledge to accurately determine the true power, temperature coefficients, energy rating, degradation (LID/LeTID) and metastability of PV modules.

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We help our customers achieving the highest degree of measurement certainty and getting the highest return from their solar investments

Our test setups address the specific needs of technologies like BSF, PERC, IBC, HJT, CIGS, CdTe and are fully capable of handling of bifacial, half-cut cell, shingled modules.

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Eternalsun Spire is a leading manufacturer of solar simulators for measuring the performance and reliability of PV modules.

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