Major solar manufacturer, Canadian Solar, has received a 91% efficiency PV US test condition (PTC) rating for two of its modules.
Canadian Solar’s 60-cell, 255W CS6P-P module received the high PTC Rating of 91.88%, and its 72-cell, 305W CS6X-P module, received a PTC Rating of 91.90%.
The rating certifies better on-site energy yield, meaning a better investment return on energy captured per module.
The PTC rating is measured at 1,000 watts per square meter solar irradiance, at 1.5 air mass and 20 degrees Celsius, also measuring 10 metres above ground level and wind speed up to a metre a second.
PTC conditions were first determined at the University of Davis, California, Canadian Solar’s modules used the California Energy Commission to establish test conditions.
In June 2012, Canadian Solar received high PTC ratings, averaging at 91%, more than 9,000 modules were rated as part of the California Energy Commission’s Solar Electric Incentive program.
“The PTC Rating is widely recognised as one of the most realistic, credible measures of PV module output due to its strict definition and calculation criteria and ability to reflect real-world solar and climate conditions,” said Shawn Qu, Chairman and CEO of Canadian Solar.