Assessing Efficiency and Environmental Performance of a Nearly Zero-Energy University Building’s Energy System in Norway

Increasing awareness of climate issues in recent decades has led to new policies on buildings’ energy consumption and performance. The European Union (EU) directive 2010/31/EC, i.e., the performance buildings (EPBD), is one measures initiated achieve goals by reducing use greenhouse gas emissions building sector. EPBD required all be nearly zero-energy (nZEBs) 2021. Nearly are with a very-high-energy zero or low-energy requirements covered very significant extent from renewable sources produced on-site nearby. utilisation solar photovoltaic (PV) panels common approach for achieving nZEB standard. carbon footprint PV often not discussed as parameter. This paper aimed analyse environmental an existing university Norwegian case scenario. analysis performed assessing annual electricity heat both energetic perspectives. during studied period then used building. When it comes assessment, commercial software SimaPro was used. proposed revision definition 2021 suggests that nZEBs should also consider operational life-cycle global warming potential 2027. life cycle assessment (LCA) building’s looks at (GWP) (GHG) emissions, how they compare grid electricity. results highlights challenges justifying alternative fulfil criteria nZEBs. installing PV, important mix country where PVs produced. To solely building, installation countries high share may result reduced impact terms emission reduction perspective.