With the development of solar power technology and inverter technology and the reduction of the prices for PV installations, the number of self-consumers or prosumers connected to the distribution network is increasing. The distributed renewable generation has been connected to the grid but not integrated into it properly and the impacts of the interconnected distributed resources need to be studied and measure in order to maintain the power supply within its power quality, security and economical limits. In order to integrate successfully the distributed generation into the grid, advanced in the regulations, interconnection rules, communications and standards as well as a new method for distribution network planning are needed.
The different potential benefits and costs of distributed generation have been revised and the requirements stablished by the main different national regulations and international standards have been compared in this project.
