By adopting dynamic electricity pricing, Germany is shifting a portion of electricity market risks directly onto private households. An evening peak on June 24, 2026, demonstrated just how expensive this model can become. The spot price climbed to €747.10 per megawatt-hour—equating to 74.7 cents per kilowatt-hour for the wholesale electricity alone. However, once grid fees, levies, electricity tax, concession fees, supplier markups, and VAT are factored in, the final price can easily exceed one euro per kilowatt-hour. This spike was driven by a drop in solar output during the evening, low wind speeds, high demand, and the reliance on expensive backup power plants. Consequently, customers with smart meters, dynamic tariffs, electric vehicles, heat pumps, or other high-consumption appliances are particularly affected.
Dynamic electricity prices make volatility a personal matter
Dynamic tariffs are often marketed as a modern way to save money. In reality, however, they tie households more closely to an electricity market characterized by increasing volatility. Prices no longer follow a long-term blended rate calculation; instead, they track short-term market signals. Consequently, the timing of consumption has a greater impact on the bill than the choice of provider.
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This is not a marginal issue affecting only specific tariff models; it is a consequence of the transformation of the electricity system. High levels of solar power generation often drive down prices at midday, but this supply drops off in the evening. If wind power is simultaneously unavailable, flexible—and usually more expensive—power plants must step in to fill the gap. It is precisely this scarcity that is passed directly on to the customer through dynamic tariffs.
A kilowatt-hour can cost more than one euro
The crucial factor lies in the difference between the wholesale market price and the household bill. A price of 747.10 euros per megawatt-hour mathematically equates to 74.71 cents per kilowatt-hour. However, this figure does not yet include all cost components. Households must also pay grid fees, taxes, levies, concession fees, and the supplier’s margin. Consequently, the gross cost of a kilowatt-hour during such 15-minute intervals can exceed one euro.
The impact is particularly noticeable for high-consumption appliances. Ten kilowatt-hours consumed during a high-price period can easily cost more than ten euros. Charging an electric vehicle with 40 kilowatt-hours can roughly exceed 40 euros. Heat pumps, water heaters, air conditioning units, and battery storage systems also draw significant amounts of energy. Therefore, what matters is not the low price at midday, but the consumption during periods of scarcity.
Without automation, the customer is flying blind
Many households have limited flexibility to shift their consumption. They cook, do laundry, charge devices, or heat their homes whenever their daily routines and work schedules allow. Yet, these times often coincide with the expensive evening peak periods. A smart meter does not change this; while it measures usage more accurately, it does not provide automated control.
A dynamic tariff can only function effectively if major energy-consuming devices react automatically. This requires wallboxes, heat pumps, storage systems, or energy management systems. Furthermore, the customer must be willing to adjust their comfort levels and consumption habits. Without this technology, the tariff remains a speculative model: instead of the supplier monitoring the market, the household bears the risk.
Dynamic electricity prices mask a systemic issue
The requirement for electricity suppliers to offer dynamic tariffs aligns with the political vision of flexible consumption. The idea is for households to use electricity when wind and solar generation are high. While this sounds efficient, it shifts responsibility onto the consumer. After all, the power system requires more than just price signals; it needs storage, grids, dispatchable power, and reliable capacity.
Dynamic electricity prices do not resolve this gap; they merely make it visible to the customer. Those who can precisely shift their consumption patterns may benefit at times, while those who cannot end up paying a premium during periods of scarcity. This creates a pricing model that favors technically well-equipped households while placing a burden on less flexible consumers.
Fixed prices remain the lower-risk option
Traditional electricity tariffs may seem old-fashioned, but they offer protection against extreme price spikes. Suppliers purchase electricity over extended periods and factor risks into their tariff calculations. Although customers usually pay a premium for this, they gain predictability—a crucial factor for families, tenants, and households that lack major controllable appliances.
Dynamic tariffs largely forgo this buffer. Consequently, low prices during periods of surplus generation can create a misleading impression. What matters is not the cheapest moment of the day, but the price at the time electricity is actually needed. That is precisely where the cost trap lies.
Periods of high prices will return
The evening peak observed in June was not an isolated anomaly; it reflects a power market where generation and consumption increasingly diverge over time. While solar power helps during the day, it cannot replace reliable capacity in the evening. Wind power is also subject to significant fluctuations. Furthermore, heat, cold, and the electrification of energy use drive up demand during critical hours.
Consumers should therefore not view dynamic tariffs simply as a way to save money. They represent a contract with inherent market risk. Opting for one requires the ability to control consumption, technology, and timing. Without storage, automation, and clear load shifting, the tariff can become expensive. In that case, the customer does not save money; instead, the provider passes on the volatility.
Author: Blackout News
Sources: Focus (24.06.26) – Photon (25.06.26) – Bundesnetzagentur (Stand 25.06.26) – Verbraucherzentrale (06.10.26) – bdew (15.04.26)