Categories: Technology

Electric Cars Can Now Be Buffer Storage For Solar Power

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MUNICH, July 27, 2022 /PRNewswire/ — Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) and Delta Electronics, a Taiwan-based global leading provider of power and energy management solutions, have developed a three-in-one-system that integrates solar, energy storage and charging of electric vehicles.

Thanks to bidirectional inverters, the electric car is not only charged, but can also be used as a buffer storage or as household emergency backup power.

More and more cars are equipped for this. Looking ahead, bidirectional energy flows could also be used to realize new vehicle-to-home (V2H) and vehicle-to-grid (V2G) solutions.

A single-family home can consume an average of 10-15 kWh of energy per day. A fully charged car battery with a capacity of 30 to 100 kWh could therefore theoretically bridge a few days as an emergency power solution. Homeowners thus secure inexpensive electricity as well as more independence in power supply.

The new system provided by Delta allows a maximum continuous current of 34 A and achieves peak efficiencies of more than 97.5 percent. To increase power density, energy-efficient power semiconductors made of silicon carbide (SiC) from Infineon are used. Compared to silicon-based semiconductors, the compound material SiC reduces energy losses when converting current by around half.

The size of charging stations can also be reduced by about 30 percent. With SiC, photovoltaic systems become more powerful, charging times at fast-charging stations and wall boxes are shorter, and the range of electric cars is five to ten percent higher.

Power from electric cars

By the end of this decade, more than half of all newly registered vehicles are expected to be partially or fully electric. Green mobility can only be achieved if both vehicles and energy are carbon neutral. One key therefore lies in the use of wind and solar energy. The fluctuating availability of these energy sources must be balanced by electrical storage systems to stabilize the grids though.

Semiconductors from Infineon

Infineon is the number 1 in power electronics, enabling the expansion of renewable energies and the energy-efficient storage and use of green electricity. As the global market leader for automotive semiconductors, Infineon pioneered the development of electric vehicles.

Almost every second electric or hybrid car produced in 2021 uses Infineon semiconductors in the inverter. Infineon power semiconductors are also setting standards in charging stations: the 50 kW Hypercharger from alpitronic is the first wall-mounted charging station that allows two cars to be charged simultaneously.

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