Energy efficiency in buildings

Buildings are responsible for 40% of energy consumption and 36% of CO2 emissions in the EU. While new buildings generally need less than three to five litres of heating oil per square meter per year, older buildings consume about 25 litres on average. Some buildings even require up to 60 litres.

Currently, about 35% of the EU's buildings are over 50 years old. By improving the energy efficiency of buildings, we could reduce total EU energy consumption by 5% to 6% and lower CO2 emissions by about 5%.

Energy efficinecy in buildings - DG ENER

List of projects where this technology is being implemented.

NEXT-BUILDINGS

The NEXT-Buildings project focuses on low energy buildings also called active houses, which are not only buildings, but active components in the overall integrated energy systems. The target is to demonstrate affordable solutions for social housing and revitalisation of town areas. The solutions...

NEED4B

NEED4B is a collaborative project that will demonstrate cost-effective and energy efficient technologies and methods for the design and construction of very low-energy new buildings. A series of pilots located in different European climates will show how to achieve a primary energy consumption...

ZENN

The research project ZenN aims to reduce energy use in existing buildings and neighbourhoods. The project strives to: demonstrate the feasibility of innovative low energy renovation processes for buildings at the neighbourhood scale, identify, optimise and disseminate the most promising management...

GrowSmarter

GrowSmarter aims to stimulate city uptake of smart solutions by using the three Lighthouse cities Stockholm (Sweden), Cologne (Germany) and Barcelona (Spain) as a way to showcase 12 Smart City solutions: from advanced information and communication technology and better connected urban mobility, to...

E2REBUILD

E2ReBuild project investigated, promoted, and demonstrated cost-effective and advanced energy-efficient retrofit strategies that create added value for existing residential buildings and endorse end-users to stay and build a dynamic society. The vision of E2ReBuild was to transform the retrofitting...
List of demo sites where this technology is being implemented.

EU-GUGLE Site Aachen

The City of Aachen has 248.000 inhabitants and is situated at the western border of Germany to Belgium and the Netherlands. It is a very important place for science and education with more than 50.000 students in total. The district Aachen-North is a heterogeneous area with a mixture of recent and...

EU-GUGLE Site Bratislava

Bratislava is the capital of Slovakia and the country’s largest city with a population of about 420,000. Bratislava is the political, cultural, and economic centre of Slovakia. Its area is 36 759 ha. The population density is 1,161 inhabitants per km2 (2007). Located in the south-western Slovakia,...

EU-GUGLE Site Milano

Milano, the second-largest city in Italy and the capital of Lombardy has a population of about 1.35 million people. The city urban area is the fifth largest in the EU and the largest in Italy with an estimated population of about 5.2 million. As the main industrial, commercial and financial center...

EU-GUGLE Site Sestao

Sestao is a municipality located at 11 km from Bilbao, on the left bank of the River, with a strong postindustrial character. It has an area of 3.5 km2 where only 0.9 km2 are devoted to residential use and the rest is used for industrial purposes. The demonstration district is located in the lower...

EU-GUGLE Site Tampere

Tampere is located on the banks of Tammerkoski rapids, between two lakes, Näsijärvi and Pyhäjärvi. It is the third biggest city and second biggest growth center in Finland, and the biggest inland city in the Nordic countries with 215,168 inhabitants. The EU-GUGLE demonstration takes place in...