Energen System for Power Supply of Passive House: Case Study

This paper aims to present partial results of a large study regarding the alternative energen solutions (sun, wind, hydrogen) for power supply of passive house placed on Cluj-Napoca, Romania. Five scenarios for different combinations were optimized and analyzed of hybrid energy system. The best energy and environmental performances are achieved by hydrogen technology and fuel cell, also the use of hydrogen energy is more efficient and less expensive then primary renewable energy seasonal storage by batteries.