EU heat-pump tariff gap in 2026: where night power still cuts bills most

The 2026 Europe-wide picture: how big the night-day tariff gap is now

Night tariffs still matter in a handful of European markets, but the supplied 2026 corpus is too thin to support a Europe-wide ranking of day-versus-night electricity spreads across EU countries. The dataset includes current household electricity prices for 32 markets, but it does not include separate 2026 day and night tariff values by country, nor a pan-European time-of-use table from which to calculate the gap requested in the brief (country_compare; tariff_history).

That matters because the article angle is about whether off-peak pricing still changes heat-pump economics. With the current corpus, we can say the broader retail electricity backdrop remains highly uneven: household electricity prices in the latest country comparison run from €0.1082/kWh in Hungary to €0.4042/kWh in Ireland, with Germany at €0.3869/kWh, France at €0.2561/kWh, Spain at €0.2669/kWh, Italy at €0.2966/kWh, and the Netherlands at €0.2558/kWh (country_compare). But we cannot derive the Europe-wide night-versus-day spread from those totals.

For readers comparing markets, the best available cross-country view in the corpus is the broader 32-country comparison dashboard and the market index snapshot. Those pages show where electricity remains expensive overall, which is still central to heat-pump running costs even before time-of-use structure is layered on.

Where the spread is largest: the markets where smart scheduling still pays

The corpus does not contain current day and night household electricity tariffs for EU countries, so it is not possible to identify, with numbers, which countries now have the largest night-versus-day gap in €/kWh or as a percentage of daytime price. It is also not possible to produce the requested top five table of day, night and spread values from the latest tariff point, because no such split is present in the supplied research block.

What the corpus does show is where the underlying all-in household electricity price is highest among the markets included. Ireland leads at €0.4042/kWh, followed by Germany at €0.3869/kWh, Belgium at €0.3499/kWh, Denmark at €0.3312/kWh, and Austria at €0.3272/kWh (country_compare). In those markets, any meaningful off-peak discount would matter more in absolute euro terms simply because the baseline tariff is high — but the size of that discount is not in the dataset.

For buyers and installers screening products, that keeps the practical question country-specific. In a high-price market, even small tariff optimization can be material; in a lower-price market, product efficiency can dominate. That is where a model-level comparison in the heat-pump catalog, the top SCOP leaderboard, or the air-to-water SCOP ranking becomes more useful than generic advice about “running at night”.

Where the spread is smallest: countries where off-peak pricing barely matters

The same data limitation applies at the low-spread end. The corpus does not provide the separate night and day figures needed to identify the five smallest spreads, or to count how many countries are below a 10% gap.

We can, however, place that missing answer in context. Among the lower-price electricity markets in the country comparison, Hungary is at €0.1082/kWh, Malta at €0.1282/kWh, Bulgaria at €0.1355/kWh, Croatia at €0.1658/kWh, and Slovakia at €0.1853/kWh (country_compare). In such markets, the economic payoff from load-shifting would usually need a fairly wide day-night spread to compete with simpler levers such as better emitter temperatures, weather compensation, or higher seasonal efficiency — but again, the actual spread is not supplied here.

That means any claim that off-peak pricing “barely matters” in a given country would be speculation unless backed by a time-of-use tariff dataset. Readers looking at market context can still use the country profiles and the available individual pages for Germany and France, but the specific night-versus-day spread question remains unanswered by the present corpus.

What changed over time: whether the gap has widened or narrowed since the first Eurostat reading

On trend, the corpus provides only single-series household electricity prices for five countries — Germany, France, Spain, Italy and the Netherlands — from 2018-H1 to 2025-H2 (tariff_history). It does not provide historic night and day components, so we cannot say whether the night-day gap in those countries has widened, narrowed, or stayed within €0.02/kWh since the first Eurostat point.

What we can say is that overall household electricity prices have risen substantially since the first reading in each of those five markets:

Germany: €0.2987/kWh in 2018-H1 to €0.3869/kWh in 2025-H2, up €0.0882/kWh (tariff_history)
France: €0.1748/kWh to €0.2561/kWh, up €0.0813/kWh (tariff_history)
Spain: €0.2383/kWh to €0.2669/kWh, up €0.0286/kWh (tariff_history)
Italy: €0.2067/kWh to €0.2966/kWh, up €0.0899/kWh (tariff_history)
Netherlands: €0.1800/kWh to €0.2558/kWh, up €0.0758/kWh (tariff_history)

Within that group, Spain saw the smallest net increase from the first to latest point at €0.0286/kWh, while Italy saw the largest at €0.0899/kWh (tariff_history). Those shifts shape the value of any time-of-use optimization, but they are not the same thing as changes in the day-night spread.

The outlier market: one country that breaks the regional pattern

The standout market in the supplied history is the Netherlands, not because of a proven day-night spread, but because of the unusual volatility in the all-in retail series. Dutch household electricity falls to €0.0338/kWh in 2022-H1 before rebounding to €0.3574/kWh in 2023-H1, a swing of €0.3236/kWh between those two points (tariff_history). That is far larger than the equivalent peak-to-trough movement visible in the other four historical country series.

Measured against its own first Eurostat point, the Netherlands moved from €0.1800/kWh in 2018-H1 to €0.2558/kWh in 2025-H2, a net rise of €0.0758/kWh (tariff_history). But the more notable deviation is the amplitude of the series itself. That makes the Netherlands an outlier in retail price path, even though the corpus does not allow us to test whether its night-versus-day discount is unusually narrow or wide relative to peers.

For system buyers in volatile-price markets, the implication is straightforward: tariff structure can matter a lot, but so can resilience to tariff redesign. Tools such as the payback calculator, subsidy calculator, and the methodology notes are more defensible starting points than assumptions about universal off-peak savings.

What the numbers mean for heat-pump owners and policymakers

The main takeaway from the supplied evidence is narrower than the original brief but still useful: Europe’s household electricity prices remain widely dispersed, and that alone makes heat-pump operating economics increasingly market-specific rather than universal (country_compare). Ireland’s €0.4042/kWh price is nearly 3.7 times Hungary’s €0.1082/kWh, a gap of €0.2960/kWh before any time-of-use design is considered (country_compare).

For heat-pump owners, that means smart scheduling should not be treated as a generic rule. Where retail electricity is expensive, even modest load shifting could be meaningful; where electricity is cheaper, equipment efficiency and system design may matter more. The corpus supports the first half of that statement — broad price dispersion — but not the second half’s exact tariff spread by country.

For policymakers, the evidence gap is also the point. If governments want demand flexibility from heat pumps, they need tariff structures that are visible, durable and measurable. The current corpus is enough to benchmark country-level heat-pump conditions, compare national subsidy pages, and assess the wider market context through country profiles. It is not enough to prove which markets still offer a night tariff at least 20% below day rates, or how many now sit below a 10% spread.

Sources

country_compare — Eurostat · NASA POWER · EEA · Househeating Pulse subsidy register. Snapshot: 2026-07-10.
tariff_history — Eurostat · electricity household band · series for DE. Snapshot: 2026-07-10.
tariff_history — Eurostat · electricity household band · series for FR. Snapshot: 2026-07-10.
tariff_history — Eurostat · electricity household band · series for ES. Snapshot: 2026-07-10.
tariff_history — Eurostat · electricity household band · series for IT. Snapshot: 2026-07-10.
tariff_history — Eurostat · electricity household band · series for NL. Snapshot: 2026-07-10.