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Question:

Do solar panels make electricity from light intensity or watts?

Which of these units determines how much electric energy a solar panel can generate?

Answer:

For a particular solar panel, you can't choose between the intensity and the power in terms of which determines the energy produced in a given time, because the two concepts are related. Intensity is the power per unit area. So if you have twice the intensity on a particular panel, solar energy is being delivered at twice the rate. However, if you were to compare two solar panels on which the same light intensity was falling, the panel with greater area would produce electrical energy at a greater rate, as power in intensity times area. In that sense, I'd say that the solar power input determines the electrical power output.
DIY okorder
Light is power in the form of electromagnetic radiation from the sun. We receive about 000 watts per square meter on a sunny day. The solar panels do convert that sunlight into electrical power at a little less than 25% efficiency. Light intensity and power per square meter (W/m^2) are closely related. The more intensity, the more watts per square meter. So the answer is : Yes, from light intensity which directly proportional to watts per square meter
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