A new test curve for determining the breaking point of the solar panels of Hail uses a broader spectrum of impactergia and test products.
A new hail test for solar panels shoots small to large hailstones in solar panels while it is aimed at determining the breaking point of the panel more accurately.
Introduced by VDE Americas, simulates the “Hail Resiliency Curve Test” Real-WORLD Hagelstormis circumstances in which solar panels are confronted with countless effects of a series of hailstone sizes and wind speeds during severe hailstorm. The test includes firing a series of small to large hailstones on solar panels with different speeds to the glass fractures. The tests of the tests are designed to display specific models and brands, giving developers and companies accurate data for the breaking point of a panel.
“Conventional hail risk models on which many are familiar with in the insurance community are seriously outdated and outdated,” said Brian Grenko, president and CEO of VDE Americas.
According to VDE Americas, the new test protocol makes it possible:
- Solar panels manufacturers to optimize hardened product designs with hail and to demonstrate their performance benefits compared to conventional products;
- Project developers to perform cost-benefit analyzes of various solar panels and tracker-tilt angle combinations to reduce the risk of hail damage; And
- Insurance providers in the right way Dimensions of hail damage and premiums based on empirical data instead of speculation.
President and CEO of the VDE’s Renewable Energy Test Center, Cherif Kedir, said that the solar industry has long needed a more rigorous approach to hail testing.
“The test of the hail weather curve fills this knowledge gap by giving our customers usable data about the solar panel Hail-Veerkracht in the full impact-energy spectrum of Real-World hailstorms,” said Kedir. “Moreover, the rigorous sample size provides a more thoroughly examined characterization of the solar panel.”
The use case for Glass doesn’t really matter, said Mike Pilliod, President and Chief Technical Officer at Central Spension, a glass specialist who was involved in the development of the test. “Automotive glass, mobile phone screens, architectural glass, you name it. If you are not Break glass – and not test a representative number from samples to failure – you don’t do your work as a Reliability engineer, “he said.
“What really interests me as a glass reliability engineer are measuring systems that offer a statistically representative chance of failure,” said Pilliod.
The test data of the Hagelweerkracht curve offers stakeholders of solar energy unprecedented visibility in the performance of solar panels under Real-World Hagelstorm circumstances, Pilliod said.
Standard panels quickly fail between 40 years and 80 years, while Hagel-Herrarde panels retain low failure rates to 120 years or more according to VDE.
“If you gradually increase the kinetic impact energy and test a meaningful number of samples to failure, you can generate Weibull -Distribution curves who use the chance of glass failure on a product or bill-of-materials-specific basis with low uncertainty, “he said.” Now you can stack and compare these Weibull curves. Do the curves overlap? If this is not the case, you can be reasonably sure that there is a statistical difference in resilience. “
Weigh hail risk remains the most important problem that solar projects are confronted, according to one Recent annual report From risk insurance company KWH Analytics. Although Hagel is good for only 2% of the insurance claims in the solar industry on a Nuts scale, it makes up more than 50% of the total claim costs, with the average hail-related claim of $ 58 million, according to $ 58 million Vde.
Even in regions that are usually not considered a hail, the hail risk still has to be evaluated, according to the report. North Carolina, usually not as a risky region for Hagel, represented 19% of the total losses made.
Research by Central Michigan University showed that almost all (99.3%) of the sun factories in the US have at least 10% chance to have a 2 -centimeter hail near the project every year. For a period of 25 years, 100% of the large-scale projects have a risk of 2-inch Hagel, the researchers said.
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