PRESSEMITTEILUNG: Hitzeflaute in Europa und Netzkrise in Deutschland. Diese sieben Gegenmaßnahmen muss die

Recent market data reveals a troubling trend: during the day, solar arrays are frequently throttled or "curtailed" because the grid cannot absorb the surplus. However, as the sun sets and solar production drops to zero, the grid faces an immediate deficit. To bridge this gap, expensive conventional power plants—often gas-fired—must be ramped up at a moment’s notice. The result is a volatile market characterized by extreme price spikes in the evening hours, a phenomenon that experts warn will become the "new normal" unless drastic measures are taken to increase system flexibility.

Main Facts: A System at the Breaking Point

The core of the issue lies in a "flexibility deficit." Despite record-breaking installations of photovoltaic (PV) systems across Germany, the infrastructure required to store this energy and manage demand intelligently has lagged behind.

According to the Association of Energy Market Innovators (bne), the market results from mid-June 2026 serve as a stark warning. Since June 18, the exchange has recorded 39 quarter-hour intervals where electricity prices soared above €300/MWh. The volatility reached a fever pitch when prices peaked at a staggering €747/MWh.

These spikes are not caused by a physical shortage of electricity—Germany has more than enough generation capacity—but rather by a lack of coordination. While the country boasts significant decentralized storage potential in the form of home batteries and electric vehicles, these assets remain largely "invisible" to the market due to regulatory hurdles and a slow digital rollout. The bne argues that without immediate intervention to unlock storage and demand-side response, the economic burden on consumers and industry will continue to escalate.

Chronology: From Negative Prices to Extreme Peaks

To understand the current crisis, one must look back at the trajectory of the German energy market over the first half of 2026. The situation is a mirror image of the challenges faced just weeks ago.

• May 2024 – June 2025: Regulatory debates intensified over the "AgNes" process (the reform of grid fees) and the implementation of Section 14a of the Energy Industry Act (EnWG), which was intended to allow grid operators to manage controllable loads like heat pumps and EV chargers.
• Late May 2026 (Whitsun): The German grid experienced a "negative price" crisis. Excess wind and solar production, coupled with low holiday demand, forced prices below zero. Operators were forced to pay to keep the grid stable, highlighting the inability to store surplus energy.
• June 1, 2026: A period of "Hitzeflaute" (heat-induced doldrums) began. High temperatures increased demand for cooling, while low wind speeds reduced wind power output. This shifted the burden entirely onto solar power during the day.
• June 18, 2026: The first significant evening price spikes were recorded. As solar production dipped at 6:00 PM, the lack of available battery storage forced the market to rely on the most expensive "marginal" power plants (the Merit Order effect).
• June 25, 2026: The price hit its current summer peak of €747/MWh during the evening ramp-up, prompting emergency calls from industry associations for a radical acceleration of grid digitalization.

Supporting Data: The Untapped Potential of Decentralized Storage

The tragedy of the current price spikes is that the technology to prevent them already exists within the German system; it is simply not being utilized. The bne points to three specific sectors where "locked" flexibility could stabilize the market:

1. Large-Scale Battery Storage

Utility-scale batteries can respond to price signals within milliseconds. While hundreds of projects are in the pipeline and manufacturers are ready to deliver, the "bottleneck" is bureaucratic. Grid connection approvals from Distribution System Operators (DSOs) are currently the primary delay, with some projects waiting over 18 months for a "yes."

2. Residential Storage (The 20 GWh Reservoir)

Germany leads Europe in home battery installations. Currently, there is over 20 GWh of storage capacity sitting in private basements. However, due to the lack of the "MISPEL" (Market Integration of Small-Scale Flexibility) regulation, these batteries are mostly used for "behind-the-meter" optimization. They do not feed back into the grid when the system needs it most because the regulatory framework makes it financially unattractive or technically impossible for the homeowner.

3. Electric Vehicles (The 100 GWh Rolling Battery)

There are now millions of EVs on German roads, representing a collective storage capacity of approximately 100 GWh. If even a fraction of these vehicles practiced "Smart Charging" (charging during midday solar peaks) or "Bidirectional Charging" (discharging back to the grid during evening peaks), the €747/MWh price spikes could be flattened. Currently, the lack of Smart Meter Gateways (SMGW) prevents this "Mobile Storage" from being integrated into the market.

Official Responses and the Seven-Point Plan for Reform

The bne has issued a formal set of demands to the federal government and the Federal Network Agency (BNetzA), outlining seven urgent measures to resolve the "Grid Crisis."

1. Accelerating Grid Connections for Large Storage

The association demands that DSOs be legally mandated to prioritize and accelerate grid connection promises for storage. Batteries should be treated as "system-critical" infrastructure rather than standard consumers.

2. Systemic Integration of Home Storage

The "MISPEL" regulation must be finalized and implemented immediately. This would allow private citizens to participate in the energy market, turning millions of households into "prosumers" who stabilize the grid.

3. Universal Smart Charging Standards

The bne calls for bidirectional charging to become the industry standard. This requires not just automotive technology, but "process competence" from grid operators to handle the massive data flows involved in managing millions of mobile batteries.

4. Mandatory Smart Meter Rollout

The Smart Meter rollout in Germany has been historically slow. The bne demands a shift toward "mass-market suitability," stripping away the bureaucratic complexity that has hindered the installation of intelligent measuring systems in small businesses and homes.

5. Real-Time Grid Digitalization

Beyond consumer meters, the grid itself must be digitalized. Many DSOs still operate "blind," with no real-time visibility into the low-voltage grid. Digital twins and real-time monitoring are required to coordinate decentralized generation with actual load.

6. Implementation of Dynamic Grid Fees

The "AgNes" reform process must be accelerated. While Section 14a of the EnWG (introduced in April 2025) technically requires DSOs to offer time-variable grid fees for heat pumps and wallboxes, the bne notes that "almost no grid operator is currently able to offer this in practice." The association is calling for sanctions against operators who fail to meet these legal obligations.

7. Nationwide Availability of Dynamic Tariffs

Finally, the price signals from the exchange must reach the end consumer. Dynamic electricity tariffs—where the price per kWh changes hourly based on market conditions—must be offered by every supplier. This incentivizes consumers to run appliances (or charge cars) when prices are low, naturally dampening the evening peaks.

Implications: Economic and Political Consequences

The implications of failing to address these flexibility deficits are profound. For the German industry, which is already struggling with high energy costs compared to international competitors, evening price spikes of €700+ per MWh are unsustainable. It threatens the "decarbonization through electrification" strategy; if electricity is prohibitively expensive during peak hours, companies and citizens will be hesitant to switch from gas or oil to heat pumps and electric furnaces.

Furthermore, the "Grid Crisis" creates a political paradox. On one hand, the government is successfully pushing for more renewables. On the other, the failure to manage those renewables is leading to higher costs for the average citizen. This "flexibility gap" provides ammunition to critics of the energy transition, despite the fact that the problem is not the renewable energy itself, but the outdated regulatory framework surrounding it.

The bne’s comparison to the "negative price" warnings of the previous spring is telling. Whether the price is -€50 or +€750, the underlying cause is the same: a system that cannot move energy through time.

Conclusion

Germany stands at a crossroads. The technology for a stable, 100% renewable grid is available and, in many cases, already installed in the form of batteries and EVs. However, the "analog" mindset of grid operators and the slow pace of digital regulation are acting as a brake on the nation’s economic and environmental progress.

The price spikes of June 2026 are a symptom of a structural illness. To cure it, the government must move beyond simply building more generation capacity and focus entirely on the "connective tissue" of the energy system: storage, digitalization, and flexible market design. Only then can Germany transform its "Netzkrise" into a sustainable, low-cost energy future.