Design and construction of photovoltaic shelters

Photovoltaic shelters are sheds covered with photovoltaic panels, used to create protected and shaded areas in spaces such as car parks and/or other parking areas.

Enerray, as a leading company in the design, installation and maintenance of industrial photovoltaic systems, is also specialized in the construction of photovoltaic shelters, especially for parking spaces of medium/large size such as those found in shopping centers.

The installation of photovoltaic carports for car parks requires a series of precautions to obtain a final quality product.

In order to proceed with the construction it is necessary to get the authorizations from the competent authorities. For the connection of the system to the electricity grid it is necessary to proceed with a specific practice with the grid operator.

Once the building permits have been got and the project specifications have been agreed with the customer, it is possible to start the building process of the photovoltaic shelter. Enerray can manage all the phases of authorization, design and construction of the photovoltaic carport, including structural calculations, construction of foundations, installation of all components and final testing.

The structure of the photovoltaic shelter is usually made of hot-dip galvanized steel, using shaped profiles that direct the water during rainfall, thus avoiding dripping under the roof. The height of the structure can be chosen according to the customer specifications, but it is usually about 3-4 meters.

The photovoltaic panels are mounted on the profiles of the structure and fixed with self-drilling screws, thus constituting the true coverage of the photovoltaic carport. The absence of a sheet metal between the panels and the structure provides a better ventilation of the photovoltaic modules and consequently lower risk of overheating and higher performances.


Since the photovoltaic modules must be installed at an inclination of about 5 °, preferably directed south/south-east in order to optimize the performance, it follows that the photovoltaic shelter configuration is always made by one roof flap. It is then possible to extend the coverage in case there is a need to cover a double-row car park.

A single parking space cover an area of 12.5 m2 allowing the installation of 1.68 kWp. A 100 cars parking space allows the installation of a photovoltaic carport of about 170 kWp that can produce over 200,000 kWh per year. Given the typical configuration of a parking lot, which has several rows of machines spaced at regular intervals, it is usually preferred to use string inverters rather than centralized ones.

In the photovoltaic shelter LED lights for night lighting can be integrated.

A photovoltaic system on carports is always convenient, even without incentives.

In fact, taking advantage of the “Net Metering” and sizing the system on the actual daily energy usage to maximise self-consumption rate, it is possible to significantly reduce the electric bill.

The choice of the photovoltaic carport is the perfect solution for the energy intensive company that wants to self-produce clean energy using renewable sources, making the most of existing spaces. In fact, among the most “accessible” renewable technologies in terms of space and location and non-invasive, we find the photovoltaic shelter.

Since joining the Italian market in September 2012, Helexia has undertaken a fruitful collaboration with Enerray based on the trust placed on the professionalism of Enerray and its collaborators, which led to the construction of seven rooftop photovoltaic systems. This synergy led to entrusting Enerray with the first photovoltaic shelter in Italy for Auchan car park in Casamassima (BA), which gives greater comfort to customers, with an output of around 800 kWp. The installed plant operates in grid parity and without any incentive: the hypermarket purchases the energy produced by using it for customer services.


Photovoltaic shelters built for Helexia in the commercial center of Auchan in Casamassima. Power: 790 kWp.

A very important and highly resonant project that will be the first of many future interventions that Helexia will carry out in Italy in the wake of those already carried out in France.

Enerray also takes care of the maintenance of the photovoltaic system offering a full service contract and thus ensuring a continuous 360 ° service for 365 days a year.

In addition, photovoltaics helps to promote a green image of the company, increasing the positive perception of customers.

There are innumerable advantages in deciding to invest in photovoltaic technology. For the Helexia Group, for example, there are the enhancement of the property (which are carports for parking areas that give greater comfort to the customer and employees or roofing) qualifying as a green company that pays attention to the environment, free energy at the end contract, reduction of renewal costs, communication and green certification.

For more information or to make an appointment without obligation you can contact us at the following link>

Our staff will develop a free proposal tailored to your needs.

Other examples of photovoltaic shelters made by Enerray:


Starting from the left: STM – 77 kWp, Lamezia Solare – 1,600 kWp and Apea Sarmato – 480 kWp

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