There are many different modules being developed, however there are a few commonly used technologies available, each with their own advantages.

There are many considerations; embodied energy, output, longevity, performance, back up service to name a few.

Back-Contact mono-crystalline:

• Highest efficiency panels at up to 185Watts/m2
• Outstanding performance in cooler conditions (particularly good Adelaide Hills & Fleurieu peninsula)
• Overall one of the leading energy generators (higher yields than similar capacity systems)
• Some leading units now over 18% conversion efficiency (best in Australia)
• Proven technology – based on mono-crystalline technologies
• Excellent life span / longevity
• Best option if you have a smaller roof area
• When factoring in framing, packaging, shipping the energy payback of these panels (as a complete system) is very low; meaning better long term environmental benefits

 

        Mono-crystalline:

• High efficiency panels at 135-170 Watts/m2
• Proven technology – over 50 years of development
• Most widely used technology in the world
• Excellent life span / longevity (in high quality products)
• Best option if you have a smaller roof area
• When factoring in framing, packaging, shipping the energy payback of these panels (as a complete system) is quite low; meaning better long term environmental benefits

Poly-crystalline:

• Good efficiency at 120-130 Watts/m2
• Efficient use of space due to cells being square (no diamonds between cells)
• Less expensive to manufacture than Mono's
• Excellent life span / longevity
• Ideal for small-medium roof area
  

Amorphous Thin Film:

• Newer technology than crystalline panels
• Lowest efficiency at 60-70 Watts/m2
• Expected lifespan less than crystalline
• Good output in hot conditions, less effective in cooler conditions
• 3-6 month 'breaking in' period where long term output is exceeded
• Requires 2-3 times more panels & surface area for same output as crystalline
• Requires large roof area
• Lower energy input to manufacture each panel however the complete system has a higher energy payback due to extra shipping, packaging, framing etc