The legal framework and conditions are different depending on the power capacity of the solar PV plant and the purpose of the energy which it produces. Usually the plants are built either to cover their own needs or to sell electricity at a tariff.
According to the Renewable Energy Sources Act (ZEVI), the operator of the electricity transmission grid have the right to the so-called "Motivated refusal" to connect a solar PV plant only in two cases. One is when the required power is over 200kW, and the second when it will be built to sell the produced electricity. They may refuse connection on the basis of exhaustion of the approved electrical connection capacities determined for the respective region (Art. 23, item 6).
This provision does not apply to energy sites for production of electricity from renewable sources under Art. 24 of ZEVI, namely:
solar PV systems with a total installed capacity of up to 30kW, which are planned to be built on roof and facade structures of buildings connected to the electricity distribution network and on real estate adjacent to them in urban areas;
solar PV systems with a total installed capacity of up to 200kW, which are planned to be built on roof and facade structures of buildings for production and storage activities connected to the electricity transmission or distribution network in urban areas;
for solar PV systems, when when submitting a request for connection, the investor declares that they will not take advantage of the tariffs for the produced energy.
These categories of solar PV systems join the network with priority and enjoy simplification of the administrative process. In other words, regional operators have no legal basis to refuse their connection to the grid, as they fall outside the scope of pre-approved regional capacities (Article 22, paragraphs 1 and 2). The conditions for connection of these systems to the grid are determined within 2 weeks from the submission of a request to the respective EDC. In short, in the presence of a positive response from the EDC, in the subsequent steps, there is no way to refuse the purchase of the energy produced by the solar PV system.