Indispensable. Uniper.

Energy is invisible. 

What it powers is not. 

Indispensable

At a glance

  • Geopolitical tensions and volatile markets are making security of supply one of the central challenges of our time. 
  • Security of supply is created through collaboration: through an interconnected system that responds flexibly to fluctuations and provides stability. 
  • Uniper keeps this system in balance through flexible power generation, global energy trading, and energy storage, ensuring that energy is reliably available at all times.
Unverzichtbar factory

With Uniper, Germany's energy supply remains reliable

The energy landscape is changing rapidly – and presenting Germany with new challenges. Strained supply chains and trade relationships, surging global energy demand, and geopolitical dependencies are raising the bar for reliable energy supply.

Meeting these challenges takes players who think about the energy system holistically and in interconnected terms. Companies that can respond flexibly to shifting demand and create stability amid uncertainty. Because energy is a fundamental prerequisite for economic stability, industrial competitiveness, and prosperity in Germany.

Uniper delivers electricity and gas - reliably, affordably, around the clock, whatever the weather. Our unique portfolio allows us to combine flexible, dispatchable generation capacity with diversified procurement sources for natural gas, LNG, and gas storage. So that energy is always available when it is needed – and the system keeps running seamlessly in the background.

Uniper is indispensable.

Energy is invisible. What it powers is not. 

Indispensable across Europe

Indispensable across Europe

Uniper is a leading power and gas utility in Northwestern Europe with high systemic importance.

Top 5

Power Producer

in Northwestern Europe1 2,with approximately 50 TWh3 

Top 2

Flexible Power Producer 

in Northwestern Europe with a capacity of ~ 14 GW 

Top 3

Leading Gas Supplier

in Germany with ~140 TWh of gas sales

Energy Supply in Germany

How we are securing Germany’s energy supply

We systematically supply Germany with energy – through our flexible power plants, energy trading on global markets, and system-relevant infrastructure for LNG trading and gas storage, we support around 1,000 municipal utilities and corporate customers. Ensuring an energy supply that remains reliable in the face of crises and adverse weather conditions.

LNG ship

Germany’s diversified gas supplier

Uniper is Germany’s largest gas trader, covering around ~20% of demand. We source natural gas and LNG globally via pipeline and ship, reducing dependencies and strengthening the energy system’s resilience.

Germany’s diversified gas supplier
Two engineers walking through an Energy Storage plant in Etzel, Germany

Gas storage

Uniper provides ~25% of Germany’s gas storage capacity, thereby strengthening security of supply - especially in winter, for municipal utilities and industry.

Gas storage
Two employees at Scholven Power Plant

Flexible power generation

Our power plants deliver electricity. When renewable output falls short due to weather changes, we back up grid stability with approx. 8 GW of generation capacity. So electricity is always available.

Flexible power generation
hydro sweden

Hydropower

Uniper has operated hydropower plants for more than 100 years – they supply energy for around 1.6 million households, help protect regions from flooding, and provide secure, weather-independent energy.

Hydropower
Our perspective on energy policy

Our perspective on energy policy

Security of supply is not created by infrastructure alone. Reliable political and regulatory frameworks are also essential. That is why, as a key pillar of the energy system, we actively engage in the energy policy debate and contribute our perspective.

Dunkelflauten

Dark doldrums (Dunkelflauten)

The expansion of renewable energy is an important step towards a more sustainable energy supply. At the same time, it has significantly increased dependence on wind and sun. In 2025, around 46 percent of the electricity mix came from solar and wind installations4. As a result, volatility in the system is also rising. Periods of low wind and solar output that are not sufficient to meet energy demand – known in Germany as so-called “Dunkelflauten” – are a persistent feature. Over the past ten years, there have been nearly 1,500 such periods lasting more than ten hours in Germany. Such extended periods cannot be offset by battery storage; rather batteries are used to balance short-term fluctuations. Power plants that can deliver electricity flexibly and reliably over longer periods therefore remain a central building block of security of supply – especially on the path towards a higher share of renewable energy sources. 

Scholven

Electricity supply security and capacity act (StromVKG)

The German Federal Ministry for Economic Affairs and Energy (BMWE) has presented a draft of the StromVKG, which Uniper welcomes as we want to make a substantial contribution to securing the electricity system. However, we also see a need for further refinement to ensure that investments in firm capacity can be delivered in a timely, economically viable and system-relevant way. As the share of renewable energy grows, the demands on the electricity system are increasing significantly. There is already a considerable shortfall in firm capacity today, which is set to widen further. Reliable framework conditions are therefore essential to maintaining security of supply. 

FAQ

FAQ

Uniper is indispensable to Germany's energy system. As one of the largest gas traders and a major power generator, Uniper makes a significant contribution to security of supply. Uniper’s portfolio is deliberately designed for resilience and diversification. This includes, among other things, generation capacity from gas and hydropower, a broad range of natural gas and LNG supply sources, as well as gas storage facilities that account for around one quarter of Germany’s storage capacity. 

As one of the leading power generators in Northwestern Europe and a major gas trader, Uniper is a key player in Europe’s energy supply.

Uniper is system-relevant for the energy system in Germany and across Europe, as we make a substantial contribution to gas and electricity supply. We help ensure that around 1,000 municipal utilities and industrial companies are supplied with energy for the economy and for millions of people. Uniper operates critical infrastructure such as gas storage facilities, power plants and LNG terminals, and plays a vital role in ensuring reliable regional resilience – particularly as volatility increases.

Uniper ensures security of supply through a broad and diversified energy portfolio, making sure that energy is available whenever it is needed. This includes sourcing natural gas via pipelines and as LNG, storing it in reserves, and converting and delivering it into electricity through flexible power plants. 

A well-functioning and resilient energy system is a prerequisite for prosperity and competitiveness, as both industry and households depend on a reliable and affordable energy. Fluctuations in availability would significantly constrain processes across production, technology and daily life, and lead to economic losses. A resilient energy infrastructure is therefore essential for a secure future in Germany and Europe. 

Electricity and heat must be available at all times – including during crises, changing weather conditions, and geopolitical tensions. As renewable energy continues to expand, electricity supply is becoming increasingly weather-dependent. When wind and sunshine output is low, generation declines and imbalances can occur in the grid. Conversely, periods of excess renewable generation can lead to grid congestion, while surplus energy cannot be fully stored. At the same time, global electricity demand is rising, driven by technologies such as artificial intelligence and electromobility. 

A reliable energy system requires a balanced mix of renewables and dispatchable, flexible capacity. While renewables already provide a large share of baseline supply, flexible power plants and storage help balance periods of high demand and low generation, such as “Dunkelflauten”. Battery storage also contributes, particularly in addressing short-term peaks, but cannot replace firm capacity over longer periods. Modern hydrogen-ready power plants, sufficiently filled storage facilities, and a diversified gas – and, in the future, hydrogen – supply remain indispensable to ensuring security of supply at all times. Clear and reliable policy framework conditions are crucial to enable the necessary investment in this infrastructure.