BOS cost reduction via direct PV charging of electrical vehicles

Most electrical vehicles are charged via an electrical grid connection, even if PV is present (“solar carport”). Elevated interface costs (connection, metering, billing) inhibit mass distribution of solar carports, so direct PV-use should be preferred. The charge received from a solar carport is usually sufficient for a typical home-office-home commuting. The ability of E-vehicles to be connected directly to PV differs. Some vehicles offer direct access to the battery so that even at low irradiance, charging occurs. Other vehicles offer access only via an AC terminal, which requires a PV inverter. Many systems switch off when the PV current reaches below a threshold value.