This study is a quantification of both energy and CO2 savings that can be realised thanks to high-performance glazing across the 28 EU Member States in both horizons 2030 and 2050. In addition to full potentials, whereby all windows are equipped with high-performance glazing across all EU buildings, it also simulates the impacts of several window replacement rates, all compared to a baseline scenario.
The study draws on recent scientific sources to define input parameters such as today’s Europe building stock and performance, the evolution in the energy mix, the penetration of high-performance heating and cooling equipment, etc.
Download a summary of the study
The study conducted by TNO integrates buildings and energy sources information per country. It stems from this detailed work that it provides national figures on the amount of energy and related CO2 emissions that could be saved annually in 2030 and 2050, if all buildings from a selected Member State were equipped with high-performance glazing.
| EU28 | 75,514 | -19% | 94,230 | 67,210 | -37% | 68,512 | |
Scenario | 2030 | 2050 | |||||
Energy savings | CO2 avoidance | Energy savings | CO2 avoidance | ||||
| ktoe | % | ktCO2 | ktoe | % | ktCO2 | ||
| Austria | 1,789 | -29% | 1,439 | 1,579 | -37% | 1,116 | |
| Belgium | 1,664 | -32% | 2,868 | 1,518 | -42% | 2,397 | |
| Bulgaria | 1,180 | -27% | 411 | 1,066 | -35% | 237 | |
| Croatia | 655 | -34% | 690 | 534 | -40% | 536 | |
| Cyprus | 57 | -19% | 88 | 54 | -26% | 82 | |
| Czech Republic | 1,622 | -34% | 1,870 | 1,323 | -40% | 1,190 | |
| Denmark | 874 | -32% | 486 | 797 | -42% | 404 | |
| Estonia | 390 | -39% | 156 | 316 | -45% | 106 | |
| Finland | 1,363 | -34% | 420 | 1,197 | -43% | 268 | |
| France | 9,758 | -32% | 9,594 | 8,901 | -42% | 7,580 | |
| Germany | 17,998 | -29% | 26,240 | 15,888 | -37% | 20,175 | |
| Greece | 760 | -19% | 1,655 | 725 | -26% | 546 | |
| Hungary | 1,608 | -34% | 2,145 | 1,312 | -40% | 1,573 | |
| Ireland | 651 | -32% | 1,193 | 594 | -42% | 829 | |
| Italy | 4,134 | -19% | 8,234 | 3,946 | -26% | 4,929 | |
| Latvia | 675 | -39% | 340 | 547 | -45% | 267 | |
| Lithunia | 1,026 | -39% | 498 | 832 | -45% | 314 | |
| Luxembourg | 76 | -32% | 126 | 69 | -42% | 102 | |
| Malta | 28 | -19% | 51 | 27 | -26% | 60 | |
| Netherlands | 2,643 | -32% | 4,019 | 2,411 | -42% | 3,279 | |
| Poland | 6,073 | -34% | 8,525 | 4,953 | -40% | 5,045 | |
| Portugal | 754 | -19% | 413 | 720 | -26% | 264 | |
| Romania | 3,630 | -27% | 3,652 | 3,280 | -35% | 2,946 | |
| Slovakia | 852 | -34% | 1,015 | 695 | -40% | 754 | |
| Slovenia | 317 | -34% | 230 | 259 | -40% | 153 | |
| Spain | 2,873 | -19% | 3,274 | 2,742 | -26% | 1,739 | |
| Sweden | 2,350 | -34% | 222 | 2,063 | -43% | 159 | |
| United Kingdom | 9,715 | -32% | 14,376 | 8,864 | -42% | 11,462 | |