Translations:Electricity types/5/en

PV modules can only produce DC, thus all PV systems have at least one DC circuit. Anything that uses a battery, including PV systems, will be based on DC as batteries can only store energy in DC form. Powering a load directly from DC saves the step of having to use an inverter to convert from DC to AC, which can create losses of more than 10% in the process. Many small scall systems are DC only and work well for lightning and the charging of small electronic devices like cell phones.