The mainstream is too fragile.
IEC standards are not enough to protect against low product quality.
of inspected systems have cells with complex fractures.
the increase in microcracks detected between 2022 and 2023.
of modules inspected after a hailstorm show serious cracks (electroluminescence test), with an average of 5 damaged cells per module.
of systems have at least one serious safety issue, out of over 800 systems inspected.
Source: Clean Energy Associates (CEA) — Ankil Sanghvi, Claire Kearns-McCoy.
Thermography — hot inspection in the field
Electroluminescence — laboratory test
Flash Test — I-V curve in the laboratory
Electrical insulation — immersion test
IRS.
Static Robustness Index.
Robustness index of the photovoltaic panel. It expresses the amount of material placed between the external environment and the silicon.
+ material + resistance to external factors
The weight-to-power ratio must be further related by highlighting the front material. It is from the front that, over the years, the photovoltaic panel is stressed by external agents, weather or mechanical, e.g. operators during installation and maintenance.
Front material coefficient
×0,95 · glass / polymer. This is the construction model with the greatest material-density imbalance in front of the silicon.
×0,5 · glass / glass. Usually assembled with front and back glass of equal thickness, therefore with weight and density evenly distributed.
Front material coefficient
×0,95 · glass / polymer. This is the construction model with the greatest material-density imbalance in front of the silicon.
×0,5 · glass / glass. Usually assembled with front and back glass of equal thickness, therefore with weight and density evenly distributed.
Compare with other products
Enter the weight and power of any module to estimate its Static Robustness Index.
Enter both values to calculate the index.
IRS is born from scientific research.
The Static Robustness Index draws on serious, peer-reviewed scientific studies on the relationship between mass, front material and module surface. The robustness of TORRI products is studied and validated in research centres, not left to chance.
International research confirms that increasing the material protecting the silicon is the way to more durable and safe modules: this is the principle on which the IRS is based.
Vicari Stefani et al., «Increasing specific power and the emergence of new markets for crystalline silicon photovoltaics», Cell Reports Physical Science (2026) · DOI 10.1016/j.xcrp.2026.103208
UnConventional Thinking.
We investigate often overlooked but decisive aspects. Hail, footfall, snow load and thermal stress tests: eliminating external variables means being self-sufficient without surprises.
