The dimensions of photovoltaic panels can vary. On average, a balcony/wall module has a width of 1.7 meters and a length of 1 meter. Of course, it is possible to install more than just one panel, since the Regulatory Authority for Energy, Networks and Environment (ARERA) provides a simplified procedure for photovoltaic systems with a nominal power of less than 800Wp.
In particular, for powers up to 350Wp (equivalent to a single balcony photovoltaic panel) you will only need to send the "Single Communication" to the network operator. The competent distributor, if necessary*, will reprogram the meter within 5 days.
For powers between 350 and 800Wp, you will also need to send the following to the network operator:
- the single-line electrical diagram (the document that technically describes the installed system) drawn up by a qualified technician;
- the declaration of conformity of the production plant to the rules of art pursuant to current legislation;
- the declaration of conformity of any installed static conversion and interface devices;
- the operating regulation signed by the producer.
Above 800Wp of power, the installation will not be able to follow the simplified procedure.
*_Article 13ter.2 of the Consolidated Text of Active Connections (TICA) provides that: “The distribution company, within 5 (five) working days of receiving the Single Communication: a) only in cases where the production plant with a power of less than 800 W is connected through a connection point equipped with a meter that, following a reprogramming intervention, can be enabled to detect both the electricity fed into and the electricity drawn, carries out the reprogramming of the bidirectional meter in order to activate the detection of the electricity fed into the grid by the production plant with a power of less than 800 W; (…)”