Solar carport advice – planning and building with electricity storage as a solar charging station for electric cars
Published on: March 7, 2021 / Update from: July 30, 2021 - Author: Konrad Wolfenstein
More and more people are thinking about purchasing a carport with photovoltaics. In combination with an electricity storage system, this type of solar system is developing into a real alternative for climate neutrality and at the same time as a sustainable energy source for electric vehicles such as e-bikes and the like.
The general public is now becoming increasingly aware of the acceptance and possibilities and more and more operators of public parking spaces such as companies with large corporate parking spaces are thinking about doing their part. The financial advantages are also crucial, but the independent and autonomous power supply is also an important point.
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The solar parking lot roofing
Some carports are designed for individual vehicles, but are not designed for several to large solar park systems and are therefore too complicated to plan and implement. It's completely different with the solar carport we favor. It is suitable for individual solar carports as well as for large company or public parking spaces, can be used flexibly as an additional solar charging station and, above all, can be planned. Single carport, double carport or row carport. For any even or odd rows of parking spaces.
For example, 96 vehicles (6 rows of 8 double carports each) and approx. 360 kWp (972 modules with 370 Wp, 1,740×1,030×35 mm) fit on a 50×50 m (2,500m²) area including tram lanes between the parking spaces.
Suitable for:
6 solar modules fit on each carport per parking space. Here we get to the core of the question: How much performance can I expect here?
Polycrystalline models achieve a nominal output of up to 330 Wp. Monocrystalline modules, on the other hand, now come with up to 400 Wp or even more. 6 modules with 185 Wp module power each achieve 1110 W according to standard test conditions. Or just 6 photovoltaic modules with a nominal value of 370 Wp each come to 2220 Wp.
What can I do with 1 kW (= 1000 WP) of electricity generated in one hour?
Drive around 6.7 kilometers in an electric car (with a calculated average energy requirement of 15 kWh per 100 km)
This means, for example, that an employee who charges his vehicle in the company parking lot from 8 a.m. to 5 p.m. has 9 hours of charging time available. In purely mathematical terms, this would mean 60.3 kilometers of driving energy (9 hours x 6.7 km) according to standard test conditions.
As already mentioned above, when using modules with a higher rated power than 185 Wp, much higher ranges such as 60.3 kilometers are possible! With a nominal power of 370 Wp per module, for example, that would be 120.6 kilometers.
Depending on the model, electric cars require between 8 and 25 kWh for a distance of 100 km. A Danish study, on the other hand, cites 18.3 kWh per 100 km as the average value under realistic conditions. With an annual mileage of 15,000 km, that's between 1200 and 3750 kWh.
In combination with an electricity storage system, the charging times are of course completely different and the maximum yield via photovoltaics is also possible with an electricity storage system. In this constellation, a solar filling station becomes really interesting.
Electricity generated by the solar charging station that is not used directly to charge the vehicle is usually fed into the power grid. Conversely, energy can also be taken from the power grid to charge vehicles. Only very few solar filling stations use their own solar batteries. The accumulators cannot yet be operated economically when connected to the mains. However, in the future, their use can represent an option for keeping the grid connection capacity within limits, especially given the short charging times in the range of minutes and the high outputs required in the two- and three-digit kilowatt range.
Which solar carport system is recommended?
There are already many good approaches. However, the requirements are usually different. We advise and, if necessary, we also plan for you. A solar parking lot roof with solar carports must be suitable for individual open parking spaces as well as large company or public parking spaces, be flexible in use as an additional solar charging station and, above all, be plannable.
More about it here:
Our solar parking solution is modular and scalable:
- Quick and easy assembly
- Stable strip foundation as collision protection
- Individually customizable design (color, materials, surface, size, etc.)
- Installation of charging stations and inverters is possible at any time
- Scalable & modular: Available as a single, double or arbitrarily scalable row carport
- Can even be used in the standard version for very high wind and snow loads (s k = 2.2 kN/m²)
- Extra large and wide parking spaces and very easy parking thanks to W-shaped supports
- High-quality design for sophisticated and long-lasting requirements: Hot-dip galvanized steel construction (DIN EN 10346, DIN EN 1461)
Insights for solar carports: Photovoltaics and the energy market in Germany
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With Xpert.Solar we offer consulting services for companies planning a photovoltaic system
What are your advantages?
- A personal contact with individual advice. This also applies to advice and on-site inspections.
- We bring you together with long-standing solar experts and manufacturers in the industry.
- This saves you time searching for suitable experts.
- The consulting services are non-binding for you!
- All services according to your wishes.
- As consultants and solution providers, we are available to answer any questions and problems you may have at any time.
- You have the projects and the areas, we have the solutions. From the assembly system to power storage and inverters to the modules.
- If something doesn't fit, we will develop project-specific special solutions for you.
- If you wish, we can organize your photovoltaic projects and the construction site for you. Whether piling work, frame or module assembly, DC/AC assembly and renovations.
- As your partner, we support you in planning module occupancy, shading calculation, string planning and occupancy as well as in the creation of plans and drawings.
- We help and support everything from soil reports to planning and static calculations.
- Safety is our top priority. An all-round service too. We can do a variety of things for you. Whether soil reports, project statics, snow load reports, acceptance or damage reports.
- Increasingly important: the safety and protection of your solar system. If necessary, we will create a security concept for you.
- We make your life a little easier and give you time.
- We help you and support you in your work.
- We combine quality with effectiveness.
With Xpert.Solar your individual solar carport advice – plan and build with electricity storage as a solar charging station for electric cars
Xpert.Solar is a project from Xpert.Digital. We have many years of experience in supporting and advising on storage solutions and in logistics optimization, which we bundle in a large network Xpert.Plus With Xpert.Solar we combine the same know-how in the areas of photovoltaics and renewable energies.
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You can contact me by filling out the contact form below or simply call me on +49 89 89 674 804 (Munich) .
I'm looking forward to our joint project.
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