How PV Plants & Stationary Candies can cover the electricity requirements of E cars

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How PV Plants & Stationary Candies can cover the electricity requirements of E cars-stationary

The growth of electromobility in Germany is unbraked. In the first eight months of 2021 were already 203.040 pure electric cars released. Thus, the stock of E cars on German roads rises to a good 512.000 vehicles and will be at about 600 at the end of the year.000 cars are. The monthly values of the new registrations underpin the upward trend of electromobility in Germany, with the share of electrical cars to the entire car new registrations of less than ten percent at the beginning of the year, in the meantime 15 percent has continuously increased.

On behalf of the storage specialist E3 / DC, the Bonn consulting house EUPD Research examined the effects of electrifying mobility on electricity requirements in the distribution networks and its deployment in the building. The numbers games in the analysis are quite interesting and show how the expansion of PV systems with stationary stores can contribute to a demand-based supply with renewable energies. Because the results of EUPD Research have a high importance in this context openly. In a survey of electric car owners, it shows that more than three quarters of the charging operations take place at home. On the other hand, only 15 percent of the charging operations on public charging stations and nine percent of the lowest proportion of charging operations are carried out in the workplace.

The climate protection effect of electromobility unfolds at the highest extent when 100 percent electricity from renewable energies is loaded into the battery. Analogous to analyzes of internal combustion engines, the power consumption of E-cars in real operation deviates from the manufacturer’s instructions. As average value of the current E-Autofleet in Germany, a consumption value of 18.9 kWh per 100 km can be determined. In addition to power consumption in driving, loading losses are charged when charging the vehicle battery, which is shown experience by a value of a good ten percent. This means that at the end of this year the fully electric vehicle fleet of 600.000 Cars in Germany has a power consumption of more than 1.8 TWh. Using the survey results with a proportion of 77 percent of domestic charging processes, there is a 1.3 TWh amount of 1.3 TWh at local store, the analysis of EUPD Research.

For purely balance sheet cover this amount of electricity should be 187.000 single and two-family houses are equipped with a 7.5 kW photovoltaic system. The relation of this expansion path shows the record year 2020, in which on one and two-family houses 152.000 PV systems were built.

In the domestic loading of solar power, the stationary home store is a significant function as the temporal availability of the solar power is enlarged and thus the proportion of solar coverage is growing significantly when loading the E-car. “Considering that we will fully electrifyed in Germany at the end of 2021 once 1.2 percent of the car involves the dimension of the required structural change by electromobility,” says Dr. Martin Ammon, Managing Director of EupD Research.

“The analysis results clearly show that already in the context of electromobility, a significantly stronger expansion of private photovoltaic systems is necessary when this takes place today. The conversion of the heating systems required in the future on current-based solutions will significantly increase the eco-electricity demand. These developments require the analogous expansion of the memory infrastructure to reconcile electricity supply and demand “, complements Dr. Andreas Piepenbrink, Managing Director of Hagerenergy GmbH.

Ten million electric cars up to 2030

Although the current political debates in the run-up to the general election show different positions of the parties in many points, but the counterparties agree that a road turn is only possible with the departure from the internal combustion engine. Electromobility is coincidentally regarded as essential technology short and medium term. The e-auto share in the new registrations should increase the EUPD Research analysis by 2030 to 57 percent increase. By the year 2030, therefore, a number of ten million approved electrical cars are forecast. The annual electricity consumption caused by the electrical cars thus achieves a value of 29 terrawatt hours in 2030, which incorporates starting in 2021 an annual growth of electricity consumption of 36 percent.

Due to still inadequately developed public charging infrastructure and high acquisition costs, the owner of one- and two-family houses are currently available among the electromobiles, in which the installation of a wallbox is relatively easy. For future development, it is believed that with a larger model range of electric cars, a significantly improved public space, and on the parking lot of multi-family homes, increasingly residential tenants and owners to change to electromobility.

Despite this trend, for 2030 with a share of 62 percent or. 6.2 million electrical cars the majority of electromobiles seen among the residents of one- and two-family houses. At the same time, it is assumed that in Germany-wide average about 60 percent of existing roof areas of one- and two-family houses for photovoltaic systems are suitable. If this potential is consistently exhausted for solar electromobility, then in 2030 3.7 million PV systems should be installed in the private segment and be coupled with a wallbox.

To compare the current status: At the end of 2021, just under 1.5 million photovoltaic small systems are installed on single and two-family houses, with just half of these systems owned at least one installed capacity of 7 kWp. This PV performance in combination with a home memory is necessary to be able to load the electric car with a significant share of solar power in addition to the budget consumption. Less the PV inventory systems with more than 7 kWp results in a need for 2.9 million new PV small systems over 7 kWp to 2030.

Annual new installations would have to be quintupled

Starting from around 110.000 PV storage reinstallations with more than 7 kWp solar performance in 2021, the annual new installations need more than quintuple to achieve the sketched goal. In addition, a growing need for storage manufacturing for PV inventory systems is to be determined to provide sufficient solar power to load the electrical cars regardless of the vehicle usage. To cover a solar power supply of 80 percent in the 3.7 million electrical cars, which can be loaded in 2030 from a PV storage system with solar power, a storage capacity of 28 GWh is required. Measured at the current expansion of 2 GWh of cumulative home memory capacity, the dimensions of the necessary zoom in the current decade reveal itself.

In the period to 2030, analogous to historical development is also assumed in the future of a rising system performance in the PV small plant segment. With average size of 8.6 kWp PV power, an average storage capacity of 7.7 kWh is determined, which corresponds to 3.7 million systems the total capacity of 28 GWh.

“Although the outlook at 2030 already discloses massive growth, the transport sector is still dominated to almost 80 percent of internal combustion engines. This makes it clear that politics, business and society must work closely together to complete the change in the road as soon as possible “, commented dr. Martin Ammon, Managing Director of EupD Research.

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5 thoughts on “How PV Plants & Stationary Candies can cover the electricity requirements of E cars”

  1. Sounds honestly anything but impossible to install up to 2030 2.9 million PV systems on the roofs. Actually, a PV system belongs to every house roof and the new government must ensure that. On commercial buildings, PV belongs anyway. Cheaper electricity I can not relate today. Even a plant on a private house produces electricity for under 9ct / kWh. With memory you may end up at 12CT / KWh. And this price is fixed and is cheaper the longer the plant stops (you can go out today of 30 years). But already this value is only a good third of the already valid electricity price. And every one thinks, the electricity price will fall in the long term, probably also believes in Santa Claus. Alone by a 2% inflation, the electricity price is 20 years> 40ct / kWh (incidentally decreases by the inflation of the electricity price from its own PV and continues to expand on the purchasing power).

    Ultimately, there is nothing cheaper today than the combination E-Auto + own PV. Then you drive 100km for under 2 € with almost all BEVs. Safe under 3 € / 100km. The homeowners have it in their hands. For tenants and landlords this is just a big crux. This is far too complicated to sell the stream of roof to tenant. That just has to change.

  2. Hello I think that all parking spaces in live shops shop stores furniture houses and company parking lots should be covered with PV systems with the won energy could be produced on-site hydrogen and marketing E cars or feeding into the power grid

  3. The title: Stationary stores do not cover the power requirement, but increase it. The destroying energy (CA. 20% loss) and money, but bring money into the bag from the manufacturer. Oh, the study was commissioned by such a manufacturer? A rogue who thinks evil!

  4. Why does a man do not prepare eifanch all parking spaces at the employers with 220 volt sockets then everyone can load their e car office because there is there at least 8 hours a day?

  5. The increase of PV systems in this magnitude is quite possible.
    For this purpose, the bureaucratic effort must be significantly reduced.
    The registration of the PV plant incl. the counter management and the tax effort is significantly too big. Unleashing is the keyword here.


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