The phrase “maximal temperature of glass backing” in Australia is a bit ambiguous, but for dual-glass solar panels the glass itself is generally rated to handle very high heat, while the practical limit is usually set by the module’s data sheet and installation conditions rather than an Australia- wide temperature cap. One Australian-market example I found lists a dual-glass rooftop solar module with a temperature coefficient of Pmax of -0.29%/°C and 1.6 mm front/back glass, but it does not state a single universal maximum glass temperature.

What this usually means

  • If you mean solar panel back glass , there is no single national “maximum temperature” for all products in Australia; it depends on the panel design, manufacturer, and certification.
  • If you mean building glass backing , the relevant limit depends on the glazing standard and the specific assembly, not a universal temperature number.
  • If you mean glass in general , tempered and laminated glass products can tolerate substantial heat, but the exact safe operating range must come from the product specification.

Practical answer

For Australian conditions, the safer way to think about it is:

  1. Check the manufacturer datasheet for the exact glass-backed product.
  2. Look for the module’s operating temperature range and maximum system temperature.
  3. Confirm compliance with the relevant Australian standard or Clean Energy Council approval if it is a solar product.

Most likely interpretation

If you are asking about glass-backed solar panels in Australia , the best short answer is: there is no single maximum temperature; use the panel’s certified operating limit, which is usually specified by the manufacturer rather than by Australia as a whole.

Note

I can give a much more exact answer if you mean:

  • solar panel back glass,
  • architectural glazing,
  • or another glass-backed product.