New challenges for operation of systems with large renewable capacity

The increase in renewable energy sources in the Spanish peninsular system, along with the installation of other technologies represents a challenge due to the particularities of this type of technologies. Innovative solutions and new operation paradigms may be needed in order to cope with these challenges. Grid codes must incorporate new specifications for these technologies and demand management strategies must be incorporated in control centers in order to balance the system, maximize renewable production and maintain system security. Section III introduces the challenges for power systems with high renewable energy penetration during the occurrence of power system disturbances. Section IV introduces the problem of system balancing and the impact of renewable energy on matching generation and demand. Finally, section V discusses the actions and measures taken in the Spanish electrical system in order to integrate the maximum amount of renewable energy.