Publications

Principles for nearly Zero-Energy Buildings

The European Union aims at drastic reductions in domestic greenhouse gas (GHG) emissions of 80% by 2050 compared to 1990 levels. The building stock is responsible for a major share of GHG emissions and should achieve even higher reductions.

The...

Germany's path towards nearly zero-energy buildings

In 2010 the European Union adopted a Directive stipulating that by the end of 2020 Member States must ensure that all newly-constructed buildings consume ‘nearly zero’ energy. In Germany, drastic reductions of energy demand for space heating...

Cost optimal building performance requirements

The report "Cost optimal building performance requirements – Calculation methodology for reporting on national energy performance requirements on the basis of cost optimality within the framework of the EPBD" is intended to bring an important new...

Economic aspects of deep renovation for EURIMA

Deep renovation results in an 80-90% reduction in CO₂ emissions. Based on real data from ambitious projects within the DENA (German Energy Agency) "Niedrigenergiehaus im Bestand" project (low energy building stock), we applied the findings to the economic...

Cost Optimality.

The European Commission has introduced requirements to set energy performance standards for buildings through the 2002 Energy Performance of Buildings Directive (EPBD) but did not give guidance on the desired ambition level. The recast of the EPBD in 2010...

Major renovation

In a report for the European Council for an Energy-Efficient Economy (ECEEE), Ecofys examined the effect of using different definitions of major renovation in the Energy Performance of Buildings Directive (EPBD). The report concludes that the planned threshold...

Energy savings and CO₂ reduction

In commission of SenterNovem and eight manufacturers, Ecofys studied the energy savings and CO₂ reduction potential of air/water heat pumps in existing Dutch residential buildings. This report shows that the heat pump performs almost double as good as the...

U-Values for better energy performance of buildings

Commissioned by EURIMA (European Insulation Manufacturers Association) we have created a new study, analyzing U-values (insulation thickness) for a better energy performance of European buildings. The study provides findings for 100 European cities. Aim...

Initial Assessment of National Allocation Plans

Ecofys conducted an initial assessment of the draft National Allocation Plans (NAPs) for the 2nd phase of the EU Emission Trading Scheme (EU ETS) due to run from 2008 to 2012. The focus is on Member State progress towards Kyoto targets and the level of...

Cost-Effective Climate Protection in the EU Building Stock

For Greenpeace France, Ecofys provided an independent assessment for European Emissions Trading Scheme (EU ETS) sectors in France in phase II of the EU ETS according to the objective of the Emissions Trading Directive using the projection data publicly...

Mitigation of CO₂ emissions from the building stock

Ecofys conducted a study on the impact of the European Directive on Energy Performance of Buildings. The study was carried out for EURIMA (the European Insulation Manufacturers Association) and EuroACE (the European Alliance of Companies for Energy Efficiency...