Renewable energy investments are made in our country in two ways, licensed and unlicensed. The demand for unlicensed electricity generation in renewable energy investments is increasing. Renewable energy investments are important and beneficial investments for our country. There are many bureaucratic processes to generate electricity and sell it to the government. One of these processes is the receipt of the "Call Letter" required for unlicensed electricity generation. The call letter process is not as easy as it seems. The first thing to do in unlicensed electricity generation investments receiving the call letter and as a result of this, the facility is put into operation and electricity generation is realized.

Institutions and organizations that will invest in unlicensed solar power plants can apply for land or roof application. For this, a call letter must be obtained by applying to the relevant distribution company of the province where the land to be established or the roof project is connected. Receiving the call letter for unlicensed production projects is the first step of the application. No process can be started before the call letter is received.

In order to receive a call letter, an application is made with the information and documents specified on the website of the electricity distribution company of the province where the facility is established. After the documents are submitted, the conformity opinion letter of the distribution company is awaited.