Sanyo vs. SunPower, who’s better?
One reason Sanyo’s generate more kWh (kilowatt-hours) on an annual basis than competitor solar panels is because they are a hybrid solar panel, they are composed of amorphous silicon and polycrystalline which gives them a higher temperature coefficient.
The hotter the ambient temperatures become the less efficient solar panels become, although since Sanyo solar panels have a higher temperature coefficient, when temperatures are 70 degrees and higher they will produce 10% more energy than other solar panels on the market. SunWize conducted a great study comparing a Sanyo 215 watt solar panel to a SunPower 225 watt solar panel, even though the Sanyo is outnumbered by 10 watts by the SunPower, it still generates more energy. What do you think?