What does VOC mean?

Our solar literature may include a range of technical data.  While this is likely to be useful for those in engineering roles that need or want to know the specific technical information, for the rest of us it could be more difficult to interpret.

Short circuit current is how many amps (i.e. current) the solar panels are producing when not connected to a load.

The Voc is the maximum voltage available from a solar cell.

With an open-circuit voltage of >30 Voc on a Genie Insights high efficiency panel, there is a highly efficient conversion of sunlight to energy.

The advantage of having a higher voltage, compared to traditional solar solutions, means the panel will be able to start charging earlier in the day and remain charging for longer to keep the voltage above the battery state for longer.

VOC is a better measure of real-world performance than the number of watts in a photovoltaic panel.  The more cells you connect in a row, the higher the voltage your solar panel can produce.  Due to the way our high efficiency panels are constructed they have more cells in series than a comparable standard panel of the same wattage, which boosts the voltage of the panel.

If we compare to something the industry will understand, wattage could be comparable to engine size.  We now know that it’s not the engine size that matters necessarily, it’s the efficiency of the engine and the power it can produce.

Find out more about VOC in our blog: Beyond Watts: Why Open Circuit Voltage (VOC) is the Unsung Hero in Solar Panel Performance.