Research

Energy

Dealing with building typologies, energy efficiency in the built environment and the cost effectiveness of building stock refurbishment towards NZEBs.

Buildings • Solar Energy Resources • Energy Modeling & Planning

Building's energy use represents about 40% of the EU total final energy consumption and about a third of carbon dioxide emissions. The European Commission has adopted an action plan aimed at achieving a 20% reduction in primary energy use by improving energy efficiency, a reduction of GHGs at least 20% below 1990 levels, and an increase to 20% of RES contribution to EU's gross final energy consumption, by 2020. The biggest energy savings are expected in the buildings sector. The energy performance of buildings directive (EPBD) transposition in Greece was enacted with KENAK in 2010. The new challenge is moving towards nearly zero energy buildings (NZEBs) by 2020. These efforts form part of the EU initiatives on climate change (under Kyoto Protocol) and security of energy supply.

Solar energy monitoring, modeling, forecasting and facilitating the dissemination of resources can support the exploitation of solar centralized and decentralized systems. This is part of the EU Technology Map for low-carbon technologies and policies that includes solar power generation and applications.

Energy modeling for different sectors can estimate the evolution of energy demand and assess various energy conservation and RES technologies. The need is to develop planning strategies for meeting the national energy and environmental goals in the context of the EU energy and climate initiatives, as well as other international conventions.

Research activities

Building energy conservation & Indoor environmental quality (IEQ) • High performance buildings • Energy & diagnostic audits • Building typologies • Solar air-conditioning • Environmental impact

Solar energy resources modeling & forecasting • Assessment of atmospheric conditions & weather systems • Mapping solar radiation availability on tilted surfaces • Meteorological radiation modeling

Energy demand & emissions sectoral evolution • Energy balance forecast • Energy externalities and cost-benefit analysis • Green energy investments and services • Forecasting power demand

Main achievements

Building energy audit & national performance certification (TEE-KENAK) • Instrumental in national EPBD transposition • Methodologies & software for residential, office and hotel buildings diagnostics • Hellenic residential building typologies • Public online tool for initial energy advise to home owners (eKIA) • Evaluation of Hellenic building stock in relation to the abatement of CO2 emissions in the residential and tertiary sectors • Electronic publications

Solar radiation monitoring and modeling maps over Mediterranean • Meteorological Radiation Model (MRM)

Energy balance projections upto 2030 • Simulation of electricity system on a daily basis for optimizing power generation • National Allocation Plans (NAP) for the EU emission trading scheme • National Communications on the progress of policies and measures for climate change mitigation for UNFCCC • National GHG emissions projections and Energy Efficiency Action Plan • Formulation of the National Renewable Energy Action Plan

Services

Building thermal & CFD simulations • IEQ & energy monitoring • IR inspections • Diagnostic audits • Normative advice & training • Practical tools & design data

Solar energy resources • On-site measurements • Calculations and forecast of solar radiation on any orientation and area • Assessment of local solar radiation availability

Energy modelling & planning • Energy externalities • Corporate, service & product carbon footprint • Vulnerability assessment to climate change • Advise to governmental organizations and companies


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