Solar Panel Ptc Rating List

Ptc is often referred to as pvusa test condition but more explicitly it is photovoltaics for utility scale applications test condition.

Solar panel ptc rating list.

Ambient temperature at 10 meters above ground level and wind. Stc in an acronym for factory standard test conditions which is 1 000 watts per square meter solar irradiance 1 5 air mass and a 25 degrees c. Under this standard the panel output is given for a solar radiation level of 1000 watts sqmeter and for a panel surface temperature of 25c 77f. Although ptc ratings offer a realistic view of photovoltaic output they don t indicate exact energy production.

It wasn t that the manufacturers were being dishonest it s just that pvusa uses different parameters that they feel. Stc stands for standard test conditions. The ptc rating represents a more real life condition of 1 000 watts per square meter solar irradiance 1 5 air mass and 20 degrees c. The pv panels in my system are made by the rec group the model is rec215ae us.

Pv panels nominal ratings and real production. So what is ptc rating on a solar module and how is it used. If designed right a solar power system is a great long term investment with both financial and environmental benefits. Key metrics for comparing solar panels.

So you ve made the decision to go solar. Each pv panel is rated at 215 watts under stc conditions and 187 watts under ptc conditions. Ptc solar stc rating and temperature coefficient. For example a solar panel that had a manufacturer provided stc standard test condition or labeled rating of 100 watts would have their panel tested by pvusa and might be given a ptc rating or pvusa rating of 89 4 watts.

Most do list stc ratings as the standard test condition it is just that.