List of Articles Hybrid Energy System Open Access Article Abstract Page Full-Text 1 - Optimal Design and Two-Level Power Management of a Hybrid Energy System Based on The Simultaneous Production of Electricity and Heat Ahmad Rouhani Mahmood Joorabian Seyed Saeidollah Mortazavi 10.30486/TEEGES.2025.1127081 Open Access Article Abstract Page Full-Text 2 - Designing an Optimized Hybrid Renewable Energy System in North-West of Iran to Reach High Efficiency Leila Mohammadian