AbstractThe traditional economic development aims at customer satisfaction and profits maximization, but overused the natural resources. Therefore, it becomes a necessity to take into account the social and environmental aspects. In order to ensure sustainable development, it have been adopted numerous rules and regulations which set objectives and targets aiming to reduce emissions and contributing to a responsible behavior. One of the objectives set at EU level is to ensure that sustainable development is the use of renewable resources in the production of electricity. In order to encourage the use of renewable energy sources for energy production it applied a system of promotion throughout green certificates, which aims, among other goal...