The renewable energy sources in Greece are breaking the one record after the other, both at investing and demand level. On April 1st and 2nd, the green technologies covered 67 and 68 percent of the country energy needs which is a new record. 
The operation of the system with 68 percent participation of the RES is a great performance for today, but, will be the rule in a few years as the target for 2030 is 67 percent of the electricity to derive from renewable energy sources.
As Independent Power Transmission Operator (ADMIE) president and CEO said at the Delphi Economic Forum "The major storage works are necessary in order to maximise the benefits of the green energy and in parallel preserving the stability of the electricity system".