The results currently being evaluated from the latest series of tests conducted by TÜV Rheinland confirm both internal tests and customer feedback: With a power loss below 8 %, HIT solar modules show a striking performance over a simulated module life time.
Guarantees offer the consumer a basic quality assurance, but do not help much when it comes to choosing high quality modules.
In order to provide a more reliable orientation, TÜV Rheinland, an independent global provider of technical, safety and certification services, created a more accurate approximation of long-term reliability for power output under actual outdoor operation.
This long-term sequential test method evaluates multiple stresses submitted to two identical PV modules.
The modules undergo multiple stress tests consecutively instead of the usual certification testing case (for IEC 61215) where each module is subjected to only one stress test. This comes much closer to simulating real exposure.
With this test, TUEV Rheinland can approximate more accurately the real outdoor solar module behaviour, in order to increase confidence of consumers in module quality and guarantee claims.
Throughout the long-term sequential test, the HIT modules maintained a constant level of performance after 1,000 hours of UV exposure, 2,000 hours of damp heat testing, 400 cycles of thermal cycling testing and four 10-cycle test blocks of humidity freeze testing.
This gives a very important advantage to HIT modules with respect to energy yield estimates and bankability comparisons.
With long term results backed by independent research, customers can make an educated choice and rely on the brand promise: 25 years' guaranteed top performance, an investment that is sure to pay off.
