What is a photovoltaic charging system for an electric vehicle? For me it is like this: [blog] • CARS

Agnieszka gave me two illustrations with short comments. On March 30, he took back his Tesla Model 3. The day before, photovoltaic panels were installed on the roof. At a distance of almost 3 kilometers, it consumed 500 kWh of energy, and its panels produced more than twice as much.

In recent days, her Tesla Model 3 has generated exactly 500 kWh (0,5 MWh) of energy consumed at a distance of exactly 2 kilometers. Thus, her car - Tesla Model 979 Dual Motor AWD non-Performance - required an average of 3 kWh per 16,8 km. Eighty percent of the distance he covers is highways, but he drives more according to the rules, only sometimes he will be a little stronger.

Mr. Agnieszka lives in Belgium and the weather in Belgium is similar to Poland: clouds, sun and very similar temperatures. Since its launch, the plant has generated 1,22 MWh of electricity. These are 18 panels with a power of 315 W each, which gives a total of 5,67 kW of power. The plant is oriented to the southwest, so the peak power generation occurs at noon.

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On the day of our conversation (May 23), the rooftop power plant produced only 8.22 kWh of power until 0,491 in the morning. This is not enough, enough to drive a Tesla just 3 kilometers. But statistics covering slightly longer periods already look much nicer: produced Within a month 470 kWh of energy is what Tesla consumes in more than 1,5 months. And total rooftop solar panel production (1,22 MWh) represents 244 percent of car demand over the same period, meaning a car will consume about 41 percent of what roof panels produce.

Let's translate this to the situation in Poland. Let's say that there is practically no one at home all day, and all the energy is supplied to the utility network. We come home at night and take 80 percent of what we have produced (why 80 percent? See: Can you make money with V2G energy? Or at least save money?), For example, to charge an electric car. Then for the entire period of operation, when Tesla consumed 470 kWh, we can collect 976 kWh. Thus, the car will consume about 48 percent of our energy, and we can use the rest in a different way.

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