How much power is produced by a PV panel and what does the standard rating mean?
A PV panel is rated in terms of the power it would produce under standard light intensity conditions called AM1.5 and at room temperature. For most locations, the standard light intensity rating is about the amount of light produced at noon in summer on a sunny day. (Locations close the equator or at higher altitudes may exceed this at certain times of the year, while locations far away from the equator will not reach this level). For climates at latitudes of about 30 above or below the equator, you can multiply the rating of the panel by 5 to get the amount of kWhr produced per day to get a rough estimate of the energy produced. For higher latitudes, multiply the rated power of the panel by about 3.
