Solar Energy use case
Utilizing locally produced solar energy is the cheapest and cleanest way to charge EVs.
The math is simple: 6 m2 of solar panels produce roughly 800 kWh of energy annually in northern Europe. With 36 m2 of local solar production more than 6400kWh cheap and green energy stand ready to be consumed by the building or the electric vehicles. A household with 3 persons consumes about 3500kWh. One EV alone has roughly the same energy consumption 3600kWh (20.000km driven annually). 36m2 of solar panels would provide enough energy to power both the house and the EV. But how does the volatile solar energy find its way into the electric vehicle?
The solution is an intelligent load management schedule that predicts the solar production and based on the user preferences charges the EV when connected and solar energy is available. All the system needs is the information from user when the car needs to be fully charged.
FLEXeCHARGE has developed a software solution that deployable on a local controller which significantly increases the utilization of solar energy with following benefits:
Feeding solar energy in the grid currently gives a financial gain of 7,81€ cents/kWh while consuming energy from the grid is monetized with 31€ cents/kWh. Utilizing solar energy to supply only 55% you annual EV energy consumption (3500kWh) comes with a saving of 450€ p.a.
Utilizing solar energy is also climate friendly. One kWh of the energy mix in the German grind produces 0,4kg CO2 emissions, resulting in 1,4t CO2 emissions per EV in a year. Utilizing 55% solar energy to charge your EV reduces the CO2 footprint by 770kg.