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Two Ways to Prepare for Winter

What Europe and the United States reveal about resilience under cold-weather pressure

15 December 2025

This winter has unfolded differently on each side of the Atlantic.

Parts of North America have experienced periods of intense cold, putting energy systems, transport networks, and public services under visible strain. In Europe, by contrast, temperatures across much of the continent have been relatively mild so far, reducing immediate pressure on heating demand and electricity grids.

These contrasting conditions shape how winter resilience is perceived. In the US, cold weather often brings infrastructure into sharp public focus. In Europe, especially during milder winters, systems tend to fade into the background.

But weather alone does not explain the difference. Europe and the United States have built their energy systems, buildings, transport networks, and industrial operations around different assumptions about winter. Those assumptions are shaped by geography, market structures, regulatory frameworks, and decades of experience with cold conditions.

Neither approach is inherently superior. Each reflects trade-offs between flexibility, efficiency, cost, and preparedness. Winter simply makes those trade-offs visible.


Winter as an operating condition, not an exception

In much of Europe, winter is treated as a persistent operating condition rather than an episodic event.

Energy systems, heating infrastructure, and transport networks are designed with the expectation that cold weather will arrive regularly and remain for extended periods. Even when a particular winter turns out to be mild, preparation routines remain largely unchanged.

District heating operators, grid managers, and transport authorities do not scale back winter readiness because forecasts look favourable. Staffing levels, backup capacity, and maintenance schedules follow seasonal plans that assume cold conditions as normal.

This approach reflects a preference for predictability. Systems are designed to absorb stress quietly, even if that stress never fully materialises.


The US approach: flexibility and regional diversity

In the United States, winter resilience has evolved differently.

Energy systems are highly decentralised, reflecting the country’s size, climate diversity, and market-driven structure. Cold weather affects regions unevenly, and infrastructure has historically been tailored to local norms rather than national standards.

As a result, winter resilience in the US often relies on flexibility: ramping generation, activating emergency reserves, issuing public alerts, and coordinating responses across utilities and authorities as conditions unfold.

This approach has advantages. It allows systems to adapt to a wide range of conditions and avoids over-investing in capacity that may rarely be used. But it also means that extreme cold can expose weak points when weather deviates sharply from historical patterns.


Acknowledging US winterisation efforts after 2021

Since the 2021 Texas power crisis, winter resilience in the US has become a more explicit policy and operational priority.

Utilities and grid operators, particularly in Texas, have invested in winterising generation assets, gas supply infrastructure, and transmission equipment. ERCOT introduced new weatherisation standards, inspection regimes, and penalties for non-compliance. Similar efforts have taken place in other regions, alongside improved coordination between electricity and gas systems.

These measures reflect a recognition that rare but severe cold events can no longer be treated as anomalies. While challenges remain, the trajectory is toward stronger baseline preparedness rather than purely reactive response.

This ongoing work is an important part of the comparison. The difference between Europe and the US is not static; it continues to evolve as both systems adapt to changing conditions.


Heating: individual response versus system continuity

Heating highlights one of the clearest structural differences.

In the US, space heating is largely decentralised. Individual gas furnaces, electric heaters, and heat pumps respond independently to temperature drops. During cold snaps, demand rises quickly and unevenly, putting sudden pressure on gas supply and electricity networks.

In much of Europe, heating is often approached at a system level.

Companies like Fortum operate district heating networks across Northern Europe, designed to deliver continuous heat through prolonged cold periods. These systems rely on multiple heat sources, thermal storage, and redundancy, allowing demand to be met without abrupt system stress.

Manufacturers such as Menerga (Systemair Group) design high-temperature heat pumps for hospitals, swimming pools, and industrial facilities where heat demand remains constant regardless of weather. Reliability under cold conditions is a primary design requirement, not an edge case.

This does not eliminate heating challenges, but it reduces volatility. The system absorbs winter demand rather than reacting sharply to it.


Electricity grids: market response and seasonal planning

Electricity grids reflect similar contrasts.

In the US, grid operators such as PJM, MISO, and ERCOT manage winter risk through a combination of market signals, reserve activation, and emergency measures when demand surges. Price mechanisms play a central role in balancing supply and demand during stress periods.

In Europe, transmission system operators like TenneT (Netherlands, Germany) and RTE (France) place greater emphasis on seasonal planning. Maintenance is scheduled outside winter months, reserve margins are secured in advance, and cross-border coordination is treated as a normal operating feature rather than an emergency tool.

Even during mild winters, these preparations remain in place. Planning assumes cold, low-renewable scenarios whether or not they occur.

The difference is less about capability than about timing: reacting to stress versus planning around it.


Buildings: dampening demand instead of amplifying it

Buildings play a growing role in winter resilience on both sides of the Atlantic.

In the US, cold snaps often lead to sharp increases in heating demand, amplifying pressure on grids and fuel supply. Many buildings lack advanced control systems capable of smoothing load over time.

In Europe, companies like Schneider Electric promote building management systems that coordinate heating, ventilation, and energy use to anticipate winter demand. Preheating, gradual setpoint adjustments, and load smoothing help avoid sudden spikes.

The result is not lower demand overall, but more predictable demand—easier for energy systems to manage.


Transport and industry: routine readiness versus event response

Transport systems show similar patterns.

European rail operators such as Deutsche Bahn invest continuously in winter readiness: heated switches, snow-clearing equipment, and winterised rolling stock. These measures are maintained regardless of how severe a particular winter turns out to be.

In industry, European operators tend to test winter systems routinely. Backup generators are run under load. Heating and control systems are stress-tested before winter begins. Procedures are rehearsed as part of standard operations.

In the US, contingency planning often plays a larger role. Emergency measures are activated when conditions deteriorate, rather than exercised routinely under normal circumstances.

Again, this reflects different philosophies rather than different levels of competence.


What mild European winters still reveal

This year’s relatively mild European winter does not weaken the comparison. It clarifies it.

Systems designed for cold continue to operate quietly even when conditions are forgiving. Preparations remain invisible. Nothing dramatic happens.

In the US, where winter resilience is more closely tied to extreme events, mild conditions reduce pressure temporarily. When severe cold returns, attention returns with it.

Both approaches function—until conditions change.


Two models, one shared challenge

Europe and the United States face the same long-term challenge: managing increasingly variable winter conditions with systems built on historical assumptions.

Europe leans toward redundancy, planning, and continuity.
The US leans toward flexibility, responsiveness, and regional adaptation.

Neither model is universally better. Each reflects economic, geographic, and political realities. But winter continues to expose the consequences of those choices.

Resilience is rarely visible when it works. It shows up most clearly when systems remain uneventful under pressure—or when pressure turns into a public test.

That, more than temperature alone, is what winter reveals.