Solar Panels

The Charging Source

For most renewable energy systems, solar panels alone, or in an array, can provide all or part of the electrical energy required to charge batteries or directly power DC loads. With adequate sunshine, solar panels (also called modules) provide long life, silent operation, consistent output, and specific power ranges for various-sized solar systems.

For now, if we focus on solar panels, the size of the demand helps dictate the size and configuration of the solar array. Combining panels in a series circuit causes the module voltage to be added together. Parallel circuits maintain the module voltage, though combine the amperage of each module. Combinations of both series and parallel can be created to optimize both system voltage and power output. Different loads have different needs in terms of amperage. Loads with extreme voltage/amperage requirements like some motor starters or solar pumps can stress an entire battery bank, and may require temporary support of a backup generator or other source.