A 700W solar photovoltaic panel typically operates at a voltage range of 30 to 45 volts, depending on its specific design and configuration, with the average voltage being around 36 volts. . 1 kilowatt (kW) equals 1,000 watts (W). What Are Volts? Volts (V) measure the electrical potential difference in a circuit. In simple terms, it shows how much energy is available to push the current through the system. Solar panels typically. . How many volts does a 700w solar photovoltaic panel have? 1. Put another way, if you know the amps you can calculate the volts. It's the easiest. . Enter the power in watts, current in amps and press the Calculate button to get the voltage in volts: Volts to watts calculator ► The voltage V in volts (V) is equal to the power P in watts (W), divided by the current I in amps (A): V(V) = P(W) / I(A) The RMS voltage V in volts (V) is equal to the. .