BPIE: Europe's buildings under the microscope - PU Europe
BPIE: Europe's buildings under the microscope - PU Europe
BPIE: Europe's buildings under the microscope - PU Europe
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projects to assess <strong>the</strong> viability of achieving energy savings of 60% or more and to provide a learning<br />
opportunity.<br />
In <strong>the</strong> absence of accurate figures for depths of renovations currently being <strong>under</strong>taken, we have assumed<br />
<strong>the</strong> following split as being <strong>the</strong> starting point of <strong>the</strong> scenarios:<br />
• Minor 85% of total renovations<br />
• Moderate 10% of total renovations<br />
• Deep 5% of total renovations<br />
• nZEB negligible<br />
Shallow renovation path<br />
In this option, <strong>the</strong> minor renovations continue to represent most activity over <strong>the</strong> next two decades, and<br />
still account for 25% of activity by <strong>the</strong> middle of <strong>the</strong> century. Moderate renovations grow steadily over <strong>the</strong><br />
period, reaching 50% of total activity in 2050 respectively, while deep renovations grow more modestly,<br />
achieving only 25% of total activity in 2050. nZEB activity continues to be negligible.<br />
% renovations by depth<br />
Figure 3B3 – Shallow renovation path<br />
Source: <strong>BPIE</strong> model<br />
100%<br />
80%<br />
60%<br />
40%<br />
20%<br />
0%<br />
2010 2015 2020 2025 2030 2035 2040 2045 2050<br />
deep moderate minor<br />
Intermediate renovation path<br />
In <strong>the</strong> intermediate path, minor renovations continue to be most common for <strong>the</strong> next decade, but<br />
fall away such that, by 2030, <strong>the</strong>y reach just 5% of <strong>the</strong> total, continuing at that level <strong>the</strong>reafter 57 . Deep<br />
renovations grow to 65% of activity by 2050, while nZEB renovations are introduced, reaching 5% of<br />
renovations by 2050. The balance is made up of moderate renovations.<br />
% renovations by depth<br />
Figure 3B4 – Intermediate renovation path<br />
Source: <strong>BPIE</strong> model<br />
100%<br />
80%<br />
60%<br />
40%<br />
20%<br />
0%<br />
2010 2015 2020 2025 2030 2035 2040 2045 2050<br />
nZEB deep moderate minor<br />
57<br />
In all scenarios, 5% is <strong>the</strong> minimum level for minor renovations, to reflect situations where <strong>the</strong> only improvement in energy performance is due<br />
to replacement of equipment at <strong>the</strong> end of its life e.g. HVAC equipment, or for some building types (e.g. heritage <strong>buildings</strong>) where <strong>the</strong> options to<br />
renovate are limited<br />
<strong>Europe</strong>’s <strong>buildings</strong> <strong>under</strong> <strong>the</strong> <strong>microscope</strong> | 111