How much do they cost the wallboxes that are installed at home and the columns where you stop to fill up electric cars with energy? ARERA, The Regulatory Authority for Energy, Networks and the Environment, wanted to investigate and the result is a report that reveals very interesting details. To carry out this study, 225 models of companies such as ABB, Enel X and Engie were surveyed (24 in total). Equipment with powers from 2 kW to 350 kW.
The report also allows a snapshot of the current market offer to be taken.
Of the 225 models surveyed, 95 are classified as “Slow” (up to 7.4 kW), 98 “Quick” (up to 22 kW), 20 “Fast” (up to 50 kW) and 12 “Ultra Fast” (over 50 kW). The survey revealed a particularly lively market offer for the “Slow” and “Quick” models (86% of the total), where 78% of the companies considered operate. The situation is very different for the offer of the “Fast” and “Ultra Fast” columns where only 9 and 6 companies operate respectively.
Let’s see the prices found by the survey. According to what emerged, for the “Slow” models the average purchase and installation cost is between 900 and 1,500 euros. The average cost is about 1,200 euros including VAT. The report shows that there are, however, also cheaper (700 euros) and more expensive (1,700 euros) solutions. However, the mid-range is centered around 1,200 euros. The study also points out that some car manufacturers offer the wallbox as a gift with the purchase of the car.
To this we must add that the prices indicated do not take into account the advantages of tax breaks such as the 50% or 110% deduction that people can access. Going up the range, for the “Quick” models you can start from 700-1.300 euros + VAT for the basic single-socket versions with power up to 11 kW. For a column with two 22 kW charging points you can spend between 2,000 and 4,000 euros + VAT.
However, with the same power it is also possible to find offers for products with basic functionality and reduced prices up to 800-1,000 euros + VAT. The most expensive models are those equipped with all the features, such as RFID and internet connections via LAN, via WiFi or with SIM on board and which therefore allow physical and / or digital authentication. Moving on to the “Fast” segment, the column has a price between 22,000 and 29,000 euros + VAT.
The report shows that in this category there are also less performing devices such as wallboxes with a single socket from 30 kW to 7,500 euros + VAT or 24 kW columns, whose prices can vary between 12,000 euros (single socket) and 19,000 euros + VAT. ). Coming to the last category, that of the “Ultra Fast” models, for the columns between 60 and 150 kW the cost is between 26,000 and 40,000 euros + VAT (found on 3 of the 6 products surveyed).
For devices between 150 kW and 350 kW, the price rises again and is between 54,000 and 80,000 euros + VAT (found on 5 of the 8 devices surveyed). As already mentioned above, an important part of the cost it is due to the technologies they have such as display, RFID / NFC chip, app control capability and more. According to the report, the price per kW of the columns ranges from 36 to 580 euros.
The survey also goes to consider i consumi in stand-by of the wallboxes / columns to understand how much the non-use weighs on the network. According to the findings, “about 1 device out of 3 constantly consumes between 20 and 30 W and 80% of devices consume no more than 30 W. Only 1 device out of 5 has negligible consumption (less than 5 W) “. The scenario that emerges is very interesting and makes us understand how we must work to find new technologies to improve efficiency, especially in the future when electric cars will increase significantly. This is what is described in the report.
If we consider that each W of withdrawal in stand-by corresponds to an annual energy consumption of 8.76 kWh, the installation of 10,000 Slow or Quick recharging devices (with an average consumption value in stand-by of approximately 12 W) would now involve exceeding 1 GWh of annual consumption in stand-by, while as many Fast or Ultra-Fast devices would consume 5.25 GWh / year. Consequently, consistently with the diffusion scenarios of electric vehicles presented in the PNIEC, where a private-public charging network is developed consisting of at least 3 million devices of the Slow or Quick type and about 10,000 of the Fast and Ultra-Fast type, the Stand-by consumption could reach – without the advent of new high-efficiency technologies – about 300-350 GWh / year, thus representing over 3% of the estimated energy needs to power the 6 million vehicles in circulation by 2030 .
Within the relationship we speak also of the vehicle to grid and the interaction between electricity grids and vehicles. According to what emerged, 2 out of 3 devices in the “Slow” and “Quick” categories and almost half in the “Fast” and “Ultra-fast” ones already have support for V1G, that is, they are able to modulate the flow of energy towards the vehicle. On the contrary, the diffusion of devices capable of managing energy flows in a bidirectional way is still far away, with cars that will be able to feed the battery energy into the grid to stabilize it. Finally, according to ARERA, in 2020 only a third of the devices surveyed have smart functionality such as the possibility of being able to receive commands given remotely and more.
This investigation was also made in sight of the experimentation that will start next July 1st 2021 to facilitate the recharging of electric cars in private places. Starting from this date, ARERA will allow thefree power increase up to 6 kW during the night / holiday time slots for low voltage customers. The savings for consumers, compared to an increase in power at all hours of the day and every day, are estimated between 60 and over 200 euros per year.
Those who own a wallbox at home with specific technical characteristics defined by the Authority, can already apply for membership of the GSE which can be done all online.