Prism Solar, the home charging station, & egrave; a solution for those looking for a high-end product that meets certain needs, plus; evolved compared to those who make the electric car a basic use.
WHY? CHOOSE A WALLBOX 
the starting situation: Schuko socket used only with plugs equipped with temperature sensors, 4 mmq wiring and magnetothermic
L & # 39; installation of a wallbox & egrave; highly recommended for safety reasons even to those who do not have to manage enormous powers. The chargers with the Schuko , if they are not the advanced ones with the temperature sensor at the socket (and they are very few), present a remote but concrete risk , that of passing constant current in a & quot; bottleneck & quot; which could overheat in the long run . For this & egrave; better to size everything with a home column, even if you do not plan to increase the used power of the meter.
At this point you have several choices: your box has a dedicated line separate from the home one, you don't have photovoltaic systems or you always charge the car at such a low power that it never conflicts with appliances in the house? You just need to buy an economical wallbox, if it is reliable and certified.
Why & eacute; & egrave; better not to choose a dedicated line for the box? If possible, connect the garage to the home meter and possibly increase the power used. Choosing a dedicated line means a second meter, additional fixed costs and higher installation costs. A drain for most users …
If, on the other hand, you want to be sure that at any time you don't have to go to the garage to stop charging to turn on the oven, the washing machine, or the air conditioner, at that point & egrave; it is advisable to make a larger initial investment; high, and then find yourself in your hand a column with automatic load management, possibility & agrave; update, connectivity & agrave; WiFi, dedicated app and support for any expansion through a photovoltaic system.
WHY? CHOOSE AN INTELLIGENT WALLBOX 
 because, despite having a Tesla that I use app & egrave; able to stop and resume charging, have <strong>the sensor that manages the loads is; a huge practical advantage </strong>: sometimes the app takes a minute or two to connect, other times the network signal coming from the car is not there; always the maximum, still others the car goes into & quot; deep sleep & quot; … in short, <strong> even a connected car collides with practical problems </strong>, let alone the others! The result is; that when someone in the house forgot that the car was charging, the meter would jump. </p>
<p> With automatic management, <strong> the sensor </strong> reads the power required by the house at any time: when this increases, it sends an automatic charge suspension command to the column, or reshapes the power based on the amperes available. </p>
<p> <strong> Example </strong>: the car is charging at 3.1 kW, I suddenly turn on an appliance that absorbs 1 kW peak (tot: 4.1 kW, greater than 3.3 kW). The meter would jump, but with Prism Basic and Prism Solar RFID the power delivered to the car drops automatically and the sum between house and garage remains within the tolerance limits. </p>
<p> INSTALLATION AND LINE PREPARATION <img src = )
The plant on which I went to work is only 10 years old, yet the manufacturer did not build it with electric cars in mind, thus bringing cables from the lowest section into the garages.
After contacting an electrician, the new power line for the wallbox saw the installation of a 6 mm (3×6 mmq) cable and a category 5 UTP network cable for load control , in addition to the installation of the piping and the column hanging on the wall.
To certify the line , the electrician dimensioner & agrave; cables according to the maximum power of the wallbox, regardless of whether you want to increase the power of the meter or not.
In my scenario, the box was already; was connected to the personal meter of the apartment, with the installation of the circuit breakers and a previous 4 sq mm wiring made to dimension the system safely when I loaded through cables (all with Schuko thermal sensors). Depending on the starting situation, however, the needs change; which will be indicated to you by your trusted electrician. Prism includes a differential switch that trips in the event of a malfunction.
& Egrave; well then consider this cost : unless you have a very recently built house, all other situations will force you to contact an electrician to size cables and systems to ensure safety. Do it yourself & egrave; always not recommended , even if you have the classic villa owned, but it is; absolutely to be avoided in condominiums where having the certification of a professional protects you from any boredom. Once the work has been completed and the declaration of conformity has been received, you can start reloading.
HOW PRISM BASIC WORKS 
The Prism Basic board with manual power and current output control
Prism Basic is; a domestic charging station which, already has; in its basic version, it offers the sensor load detection, 5 meter cable with Type 2 connector and RCM, acronym for Residual Current Monitor, the residual current monitoring device.
Input power (in kW) and maximum output current ( in Ampere) are adjusted manually via the switches to be set with a small screwdriver. The one on the left (kW) must be calibrated on the maximum power that can be drawn from the network, read the power installed on your meter (eg: 3 kW). The one on the right, on the other hand, manages the maximum charging current that can be supplied to the car.
The difference between Prism Basic and Prism Solar RFID is; that the replacement cover is; also equipped with connection. As we can see in the image, the control board is more complex, has an ethernet input and a WiFi module that also works as a hotspot.
The difference between the cards of the two covers: on the left Prism Solar RFID, on the right Prism Basic
In this case the installation takes place via PC or smartphone and there are different access codes: if you are not an expert, let the installer use the interface dedicated to him to do the configuration for you. The electrician or technician will go then to set the parameters based on the line and power. In this way it will suffice for you; log in using a combination of different username and password to display a dedicated interface from which will be impossible & quot; do damage & quot; . This allows us to keep the configuration environments separate from the usage one.
The advantage of Prism is just that: you can & ograve; go down deep in the configuration, but on the other side is very easy to use because & eacute; after installation just plug in the cable and the game is done. This is serious; the basic use, because Prism allows you to access more options evolved, arriving then at the most advanced case; virtuous that is realized precisely by purchasing the cover and transforming Prism Basic into Prism Solar RFID.
Before seeing this scenario, for & ograve ;, even in the absence of photovoltaics simplicity & agrave; of an intelligent wallbox allows you to program charging on the column side (so as to manage even the cars that cannot do it), connecting the car immediately, but starting the supply only in the night time slot in which eventually it is more cheap. In addition & ugrave; connects to the cloud via WiFi or ethernet cable, can & ograve; manage the storage systems and the photovoltaic system.
WHAT IF I INSTALL THE PHOTOVOLTAIC AFTER? 
Assuming, for example, that you start with a Prism Basic wallbox for recharging only and then want to add a photovoltaic system on the roof of our house, it will suffice; buy the Solar cover, replace it (it is an operation that is done by unscrewing a few screws, without the need for technical knowledge) and you will have; access to a smaller column; intelligent that integrates the management of the energy generated by a photovoltaic system .
Here the options are different because there are various possibilities, from on-site exchange to accumulation. With Prism Solar you can & ograve; use the sensor to monitor the consumption of the electrical system (house + garage and car) and the production of photovoltaics. The column can then automatically divert the energy produced by the PV and not used by the house, storing it in the battery of the car and avoiding giving it to the grid to maximize the economic benefit.
The whole system is; already prepared for various scenarios: you can & ograve; for example, to integrate the energy produced by the sun with that of the grid (if the system is too small or during the winter months), with the possibility; to decide how much maximum energy to withdraw from the grid through the & quot; load balancer & quot; menu. The same is true in the presence of static storage systems (batteries): once configured, everything is managed automatically with the advantage of improving the economic yield, not wasting the PV energy by reselling it to the grid and , at the same time, never run the risk of being with the car discharged when the PV fails to produce enough.
Council : do not get carried away by enthusiasm. The storage battery is not always the best solution; convenient and the payback times can be long. It is always advisable to carry out an analysis of the situation with dedicated specialists who will evaluate the home + photovoltaic + car ecosystem as a whole, weighing costs and benefits.
Prism Solar RFID, works on three modes (Normal, Night and Solar), & egrave; usable with programmable RFID cards and & egrave; compatible with the ARERA experimentation , being in fact included among the devices that allow you to have the increase to 6 kW for free during the night or on holidays. In addition & ugrave; supports Google Assistant voice commands and the MQTT protocol for home automation .
Furthermore, Prism works as a WiFi hotspot which can provide connection to other devices: just bring a network cable to the garage and the column will create & agrave; a wireless repeater to connect to the car, to the cameras surveillance and so on.
HOW I CONNECTED THE GARAGE 
The problem was getting the connection boxed ; Since there is no space to run a network cable, the choice is made; been between a WiFi router with integrated SIM or a powerline that brought connectivity & agrave; to Prism, with the possibility; to transform it in turn into a hotspot for the Model 3, up to now always updated via the smartphone connection while I was traveling.
The current situation was complex , but not extreme: mini condominium of nine units & agrave; housing (ground floor and first floor), apartment with router on the first floor, underground garage. The power line at home is; physically connected to the garage because & eacute; the counter & egrave; unique, but a couple of older generation powerline devices were not able to guarantee me the connection due to the length of the electrical cables and a poorly performing chipset.
We speak for & ograve; of devices I had at home, perhaps with 8/10 years behind me. Today there are much more powerlines; performance and & egrave; this video was enough, with a more & ugrave; complicated than mine and a condominium more & ugrave; great, to convince me that Devolo could be the solution. I will tell you; more in detail the possibilities; in a dedicated article, because & eacute; it is not necessary to go to the top of the range Magic 2 WiFi 6, but it is also enough to choose a much more product; as simple as the Devolo Magic 1 WiFi or the Devolo Magic 2 LAN, both of which can be purchased for around 100 euros.
The home network thanks to Devolo's mesh technology. If you use a Powerline without WiFi, just connect Prism Solar to it via an Ethernet cable and you can save money on the Powerline by taking advantage of the hotspot built into the wallbox
Glisso on installation for the moment, but & egrave; very simple and guided by an & # 39; app for smartphones called Devolo Home Network which serves to do everything without going crazy with the instructions, including the fully automatic mesh configuration . This allowed me to replicate the home network (in terms of SSID and password) in the garage , so & igrave; when I am in the box I use the same data and devices already; configured in the home network (PC, smartphone) they connect automatically while I move.
Devolo Magic 2, 2400 LAN Starter Kit: Powerline Starter Kit, Fast, for the Home Network at Excellent Speed, Suitable for Home Office, 2400 Mbit/s, 1 x Gigabit LAN port, G.hn 
Amazon 102 & euro; See offer 
Devolo Magic 2 WiFi 6 Multiroom Kit, WiFi powerline adapter – up to 2.400 Mbps, WiFi Mesh access point, 4X Gigabit LAN connection dLAN 2.0, white 
Amazon 399 & euro; See offer 
Devolo – Network Adapter Magic 1 WiFi Mini Starter Kit (1 x Magi 1 WiFi Mini, 1 x Magic 2 Lan), Ethernet, Powerline, 1200 MBps, white 
Amazon 99 & euro; See offer
These are some of the solutions evaluated: with Silla Prism Solar you don't need Magic Wifi because & eacute; just buy the Magic 2 LAN and use a network cable to connect to the Prism which , in turn, will do & agrave; from WiFi hotspot for the car or any other device.
A more kit as expensive as the Magic 2 WiFi 6, though, it can & ograve; be useful if you need one of the two adapters to bring the wireless network to another area of the house, at which point it can; worth it to “kill two birds with one stone”.
APP AND REMOTE MANAGEMENT 
Solved the problem of Internet access, here's the 39; interface that is shown when you connect via the Silla web app. In the settings I go to configure the electricity tariff per kWh, useful for the eventual calculation of savings when using the mode Solar.
Also you can set the times of the mode night to charge when the tariff is; more low in case of bi-hourly; is not serious; my case as I have an old single-hour blocked (for now) at an advantageous price of 0.17 & euro;/kWh.
In the dashboard we can see the history of the recharges, we can export the data of the various sessions and we can start and stop the recharge, possibly changing the mode. There is also another interesting function available to more users; savvy. Horeca & egrave; the service that allows you to enable the sale of electricity for vehicle recharging . Prism & egrave; waterproof, therefore it can & ograve; be easily installed outdoors even as a classic column. Thanks to RFID, cards can be enabled for multi-user management and, thanks to Horeca (against a monthly subscription), we will have an easy-to-use platform to bill customers.
This can & ograve; be very useful for business owners and wants to offer this service , all you need is a VAT number: farmhouses, gyms, restaurants, any activity; where customers stop and may want to take advantage of the reload.
If you choose to offer the service for free, it will suffice; deliver to customers one of the RFID cards and these will enable the column avoiding any passerby & quot; sticking & quot; to the cable. Alternatively, Horeca allows you to configure the price per kWh, record sessions and assign them to a customer, as well as group them by name and print a receipt and a summary. Horeca & egrave; free until June 30, 2022, then it costs € 6/month (including VAT) and the subscription can be terminated at any time. It only works on Solar and requires network connection and my.silla.cloud account.
CONCLUSIONS 
Prism Basic and Prism Solar RFDI are higher range products. higher than usual “cinesone”, and must be chosen consciously. Anyone looking for a passive wallbox/column, to attack the car and do everything manually, can certainly turn to something more & ugrave; economic.
With Silla, however, you have access to a scalable ecosystem , which grows with the user's project : you can & ograve; starting from the Basic, make an upgrade with the Solar RFID cover in the utmost simplicity; and have an infrastructure that evolves, from simple necessity; to recharge the electric or plug-in hybrid car, at will; to embrace the 100% energy transition with the installation of photovoltaics and possible storage battery , and & egrave; just this the project I have in mind and which will start; with 6 kWp of photovoltaics, followed by a year of experimentation and subsequent analysis to decide whether to add a battery.
This is; the strength of the Prism series products, together with the advantage of having an upgradeable device connected to the network, which makes the garage smart by providing connectivity; (just pull a network cable and you will have a hotspot for all devices and for OTA updates of the car itself) and with the assistance of an Italian company , without the risk of oriental products more & ugrave; cheaper, yes, but more & ugrave; complicated to manage after sales.
C & # 39; & egrave; something to improve? Yes, the remote control interface/via app. Many of the functions are accessible, but the management of WiFi and some screens remains too technical and it would be useful to insert a wizard or a much more ugrave interface; as simple as that; to make this aspect also within everyone's reach. Furthermore, only the basic operations and reporting can be carried out via the cloud interface, but the most important settings; deep are only accessible locally: an advantage for safety, a disadvantage in terms of configurability.
- Prism Basic costs 790 & euro; VAT included, click here to buy it on the official website
- Prism Solar costs 1.130 & euro; VAT included, click here to buy it on the official website
- Accessories and options : on the official website options and accessories for the Prism range are available
The 5G Smartphone best quality/price ratio ? Redmi Note 9T, buy it at the best price from Amazon at 219 euros .