They meet at the thermostat and part at the wall. Eurostat puts EU households at 26.0 percent of final energy consumption in 2024, with 61.5 percent of household energy going to space heating and 15.6 percent to water heating (energy consumption in households) — so about 16 percent of everything the EU burns is households heating rooms, a figure two people reach by setting a dial and lose the moment the question turns to insulation. The condition that changes the split: in a rented flat, even the dial is sometimes someone else's.
The figure tells you whose decision it is
Run any environmental complaint through one test: which named party can move the number this month, and which one can only move it across a decade?
The heating share is the clearest case. That same Eurostat page puts space heating at 61.5 percent and water heating at 15.6 percent of EU household energy in 2024, together 77.1 percent (energy consumption in households), and both respond to a setting. The fabric around them does not. The European Commission states that around 40 percent of energy consumed in the EU is used in buildings, that 85 percent of EU buildings were built before 2000 and 75 percent have poor energy performance, and that the recast Energy Performance of Buildings Directive (EU) 2024/1275 entered into force on 28 May 2024 (Energy Performance of Buildings Directive). Nobody sets a wall to 19 °C.
A map with figures instead of blame
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| Who | What they move | The figure it sits inside |
|---|---|---|
| The two of you | Thermostat, hot-water setting, one trip a week | 77.1 percent of EU household energy is space and water heating, 2024 |
| Landlord or building owner | Insulation, glazing, the heating plant | 75 percent of EU buildings have poor energy performance |
| Transport operator or authority | Timetables, routes, the last service home | Road transport was 73 percent of EU transport emissions in 2023 |
| National government | Building rules, subsidy, fuel taxation | Buildings use around 40 percent of EU energy |
Fill the right-hand column from the source before the left-hand one, because a row with no figure in it is usually a row where nobody has checked who is responsible.
Trace one dependency end to end
Example. Two people want to drop one car trip a week: a Wednesday evening class, six kilometres each way. One of them tests the bus once and finds the outbound service fine and the last return leaving before the class ends. The other reads the emissions figure so they know the size of what is at stake: the EEA puts transport at nearly a quarter of Europe's greenhouse gas emissions, with road transport responsible for 73 percent of EU transport emissions in 2023 (greenhouse gas emissions from transport).
Now the dependency is written in one line: the household change is available only if the timetable or the class end time moves, and neither of those two people controls either. That is a specific request to a named operator or a named organiser, not a general complaint about buses. Trips that survive this test and still cannot change belong in map the trips we cannot easily change; the enquiry itself follows from a neighbourhood observation to a council question.
Pair one action with one question, and keep them apart
Choose one thing available this week and one question for whoever holds the constraint. Lower the hot-water setting, which sits inside that 15.6 percent, and ask the landlord in writing which insulation work is planned and in what year. One person owns the action and the other owns the question, so neither task quietly becomes nobody's.
Keep the results separate when they come back. A colder cylinder does not prove the building is adequate, and a landlord's slow answer does not make the setting pointless — 16 percent of EU final energy is a large thing to be a small part of. What the building itself allows, and who has to authorise it, is worked through in an energy-saving idea that depends on the building.
These are EU-wide shares for 2024 and 2023, not a reading of one flat; a single meter can sit well either side of them.
Sources
- Energy consumption in householdsAccessed September 17, 2026
- Energy Performance of Buildings DirectiveAccessed September 17, 2026
- Greenhouse gas emissions from transport in EuropeAccessed September 17, 2026