ᐅ Are home battery storage systems for electric vehicles also not cost-effective? Costs of charging station and battery storage
Created on: 11 Aug 2020 07:54
A
annab377
Hello everyone,
I am planning a 15 kWp photovoltaic system for our single-family house and garage. Currently, without an energy storage system, since according to the latest information, it is still not economically viable. It is often advised against for that reason. Does this apply only to normal household use, or would it be different if you have an electric car?
I have a relatively long commute of 80–90 km (50–56 miles), so I’m considering leasing an electric car.
For that, of course, I would need a wallbox (as the interface between the energy storage system and the car) and an energy storage system. It does sound interesting because I could save a few thousand euros on diesel, and energy storage systems and electric cars are currently subsidized as well.
What additional costs should I expect? According to ADAC, a wallbox with 11 kW charging capacity costs about 500 EUR (e.g., HEIDELBERG Wallbox Home Eco). Accordingly, I would also need an energy storage system with a somewhat larger capacity. With an electric car (e.g., VW ID.3, but no Tesla), the payback period should be significantly shorter, right?
Let me know what you think.
Best regards
I am planning a 15 kWp photovoltaic system for our single-family house and garage. Currently, without an energy storage system, since according to the latest information, it is still not economically viable. It is often advised against for that reason. Does this apply only to normal household use, or would it be different if you have an electric car?
I have a relatively long commute of 80–90 km (50–56 miles), so I’m considering leasing an electric car.
For that, of course, I would need a wallbox (as the interface between the energy storage system and the car) and an energy storage system. It does sound interesting because I could save a few thousand euros on diesel, and energy storage systems and electric cars are currently subsidized as well.
What additional costs should I expect? According to ADAC, a wallbox with 11 kW charging capacity costs about 500 EUR (e.g., HEIDELBERG Wallbox Home Eco). Accordingly, I would also need an energy storage system with a somewhat larger capacity. With an electric car (e.g., VW ID.3, but no Tesla), the payback period should be significantly shorter, right?
Let me know what you think.
Best regards
Nida35a schrieb:
Does the electrical supply line to the house actually need to be planned thicker for an electric car, and if so, by how much? Since we don’t know what type of connection you have or will receive from the utility company, no one can answer this question for you.
A 5x50mm2 cable has already been installed, as advised for a cable length of 90m (295 feet). The cable trench should never need to be reopened. The sauna, induction cooktop, and air-source heat pump also draw some power, and the calculated voltage drop should remain below 1%.