Up to €1.65 billion could be saved each year if German households shifted flexible electricity consumption to low‑price periods, the joint E.ON‑FfE modelling study reported on 13 September 2026.Heise The same analysis estimates a theoretical flexibility potential of 18.3 TWh for 2026, roughly half of which comes from classic household appliances such as washing machines, dryers and dishwashers.
Key parameters of the flexibility model
| Parameter | Value | Unit |
|---|---|---|
| Annual monetary saving | 1.65 | billion euros |
| Flexibility potential | 18.3 | TWh |
| Appliance‑driven flexibility | 8.3 | TWh |
| Number of relevant appliances | 96 | million |
| Savings from dynamic‑tariff households | 0.762 | billion euros |
| CO₂ emissions avoided | 1 | million tonnes |
Source: Heise – “Studie: Flexible Stromnutzung könnte Haushalten 1,65 Milliarden Euro sparen”.
How the savings break down
The study splits the €1.65 bn total saving into two components. About €762 million would accrue to households that can be directly controlled via dynamic tariffs, while the remainder stems from broader time‑shifting of consumption that does not require real‑time price signals.Heise
Flexibility is anchored in the prevalence of appliances: the authors estimate roughly 96 million relevant devices in German homes, providing an 8.3 TWh (≈ 50 %) share of the total flexibility potential.Heise
For utilities such as E.ON, the projected savings translate into a sizeable new revenue‑management lever. Dynamic‑tariff products that can capture the €762 million slice would require advanced metering infrastructure, real‑time pricing platforms and consumer‑engagement programmes. The study’s timing coincides with the rollout of smart‑meter infrastructure across Germany, a development that could lower the cost of delivering such tariffs.
From an investor perspective, the ability to monetize demand‑response capacity may improve the valuation of German utility assets. Analysts typically price utilities on regulated returns; a credible pathway to unlock €1.65 bn of consumer‑side savings could justify higher earnings‑before‑interest‑tax‑depreciation‑amortisation (EBITDA) forecasts, especially if the savings are realised through tariff‑linked services rather than pure cost reductions.
Moreover, the estimated avoidance of 1 million tonnes of CO₂ per year – because the displaced electricity would be sourced from wind and solar – adds an environmental credit that could be monetised under emerging EU green‑energy certification schemes.Heise
Sector outlook and market dynamics
The flexibility potential of 18.3 TWh represents roughly 5 % of Germany’s projected electricity consumption for 2026, according to the study’s assumptions about device usage and shiftable load fractions. If utilities succeed in converting even a fraction of that into billable demand‑response services, the market could see a rapid expansion of ancillary‑service contracts, similar to the growth observed in other European markets that have introduced time‑of‑use tariffs.
However, the model is theoretical. It assumes that households can shift load without compromising comfort – an assumption that hinges on widespread adoption of smart appliances and consumer willingness to respond to price signals. The study does not quantify the cost of enabling technologies or the behavioural uptake rate, leaving a material uncertainty for utilities planning investment.
Company background
E.ON SE, listed on the OTC market under ticker EONGY, employs about 72,083 people and was founded on 16 June 2000. Its SIC description is “Electric, Gas & Sanitary Services”. The packet does not provide a current chief‑executive name; the research notes that the figure should be confirmed against the company’s own filings before publication.
What remains unknown
- The exact price elasticity of German households for flexible tariffs – the study assumes a shiftable share but does not present empirical response curves.
- Implementation costs for the smart‑meter rollout and the required IT platforms, which could erode part of the €1.65 bn saving.
- Regulatory timelines for dynamic‑tariff approval; the EU’s demand‑response framework is evolving, and national rules may affect how quickly utilities can commercialise the flexibility.
Until these gaps are filled, the €1.65 bn figure should be viewed as an upper bound rather than a guaranteed outcome.
Given the alignment of the study’s release with the EU’s push for demand‑response and the imminent smart‑meter deployment, utilities are likely to test pilot programmes in the next 12‑18 months. Success could trigger a wave of tariff innovation, attract capital to German energy‑service firms, and contribute to Germany’s climate targets by displacing fossil‑fuel generation with renewable‑sourced electricity.