Final answer:
Typical efficiencies for today's commercial photovoltaic cells are around 15-20%.
Step-by-step explanation:
Typical efficiencies for today's commercial photovoltaic cells are around 15-20%.
For example, silicon-based PV panels tend to have an efficiency of 15-20%, which means they can convert 15-20% of the sunlight that hits them into electricity.
While this may seem low, it is actually quite impressive compared to other technologies. Biology, for instance, has only achieved an efficiency of 6%.