For much of the past decade, climate change has been framed as a mitigation challenge, focusing on how quickly we can reduce emissions and limit the scale of global warming. That remains vital. But businesses must also prepare for the physical effects of climate change that are already being felt.

This is the role of climate adaptation. It means taking action to prepare for and adjust to the current and projected impacts of climate change. Not just responding to disruption but actively planning ahead so essential operations can continue as conditions become more challenging.

After a summer of severe heatwaves, heat protection is moving up the business agenda. This goes beyond keeping offices cool. Higher temperatures can disrupt operations and threaten continuity of service. Now, as winter approaches, businesses must also be ready for the added pressure of rising heating demand. Preparing for these realities is becoming essential to protecting long-term business performance.

How extreme weather is impacting energy systems

Extreme heat has a direct effect on the energy systems that underpin modern economies.

As temperatures rise, so does the demand for cooling across residential and commercial buildings. By 2035, cooling demand is set to grow by 1, 600TWh according to the International Energy Agency’s (IEA) stated policy scenario. That is roughly equivalent to the total annual electricity demand of Japan and Korea combined.  

At the same time, high temperatures can reduce the efficiency of the infrastructure used to generate and distribute energy. For example, extreme heat can cause transformers to overheat, accelerating insulation degradation and reducing their operating capacity. Over time, this shortens equipment life and makes failures more likely, increasing the risk of higher energy costs and power outages.

The challenge becomes more acute as economies electrify. Electric vehicles, heat pumps, industrial processes and digital infrastructure will all increase demand for electricity. Yet much of the existing energy system was designed for more predictable demand and weather conditions. This mismatch is becoming harder to ignore. A sudden heatwave can change a site’s energy profile overnight. A prolonged heatwave could create a fault in one facility that quickly cascades through supply chains and services. This summer, France saw three nuclear reactors temporarily shut down as rising river temperatures constrained the water available to cool them. This reportedly accounted for 3.65GW of lost capacity, around 6% of France’s roughly 61GW installed nuclear fleet.

By the time disruption hits, it is often too late to act. Businesses are left exposed to downtime, lost output, higher operating costs and knock-on effects for customers. That is why the ability to anticipate changing conditions and adapt before issues escalate is vital.

Much of the existing energy system was designed for more predictable demand and weather conditions. This mismatch is becoming harder to ignore. 
 

Turning climate risk into operational readiness

Many organisations are beginning to assess their exposure to physical climate risk. But awareness alone does not guarantee readiness. While nearly 60% of companies have integrated physical climate risk into risk management, only 30% have adaptation plans for their operations.  

There is no ‘one-size-fits-all’ blueprint. Every organisation will face a different set of pressures as summers get hotter and winters get harsher, from ensuring critical systems stay online to balancing temperature in the increased frequency of heatwaves. While a manufacturer may need to protect sensitive production equipment, maintaining uptime is paramount for a data centre.  

The first step in a successful climate adaptation plan is establishing what must continue functioning under extreme conditions, then assessing the energy systems that support it. This allows organisations to identify vulnerable assets, understand where demand may rise and prepare appropriate responses before an event occurs. As weather gets cooler in the Northern Hemisphere, this means preparing for higher heating demand and ensuring critical buildings can maintain safe, reliable indoor conditions during cold spells.

Digital energy management has an important role to play. Networking meters, electrical equipment and building systems gives operators a clearer picture of how a site is performing in real time. It can flag abnormal patterns and help teams anticipate periods of peak demand – whether driven by air conditioning in summer or heating in winter.

This visibility supports more informed decisions. Intelligent systems can ensure essential loads receive priority while reducing non-critical consumption when the system is under strain. Building automation can also adjust heating, cooling and ventilation in response to outdoor conditions (or even advanced weather forecasting), helping maintain safe indoor environments without placing unnecessary pressure on energy infrastructure.

Planning for the future

For critical facilities, adaptation may require greater continuity planning. Microgrid controls can coordinate backup generation and battery storage when grid supply is constrained. Quick-connect infrastructure can enable temporary generators to be brought online rapidly during an emergency.

We are already seeing this approach in practice. After wildfire-related outages disrupted learning, California’s Santa Monica-Malibu Unified School District installed quick-connect generator infrastructure at four schools to restore power faster during an emergency. Its next phase will add batteries and microgrid controls to help maintain essential services when disruption occurs.

For utilities, asset performance management and grid asset risk intelligence can combine asset-health data with weather information to identify infrastructure under greater stress. This enables maintenance to be targeted according to risk, rather than relying solely on fixed schedules.

These technologies are not a substitute for planning. Their value depends on whether they are aligned with operational priorities and embedded into the way an organisation manages risk. The aim is to give teams the information and control needed to protect essential operations under more challenging conditions.

The benefits of resilient infrastructure extend beyond business continuity. A recent study in Rio de Janeiro found that communities close to upgraded infrastructure saw heatwave-related mortality fall by almost half, demonstrating how investment in energy access and the built environment can also protect health in a hotter world.

Building for tomorrow, today  

This summer’s extreme heat in Europe has made climate adaptation a C-suite concern. Mitigation remains essential, but businesses must also account for the conditions already affecting them when making investment and operational decisions. Doing so will help them protect critical services and manage financial exposure in a less predictable future with increasingly frequent extreme weather events.  

What we build and upgrade today must be fit for the operating conditions of tomorrow. That means designing energy systems that can perform reliably under more volatile and unpredictable conditions and support an increasingly electrified economy.

The views and opinions expressed in this article are those of the author and do not necessarily reflect those of the Energy Institute.

• Further reading: ‘From blackout risk to batteries: can local networks help stabilise solar on our grids?’ With UK balcony solar now legalised, Graeme Hutchison, Managing Director of Grid Consultancy at Eclipse Power, explores the question of solar instability, arguing that demand – and intelligently designed grids – can help.

• ‘Overcoming renewable energy variability for a stable grid’. Integrating large amounts of solar and wind into electricity grids is a major challenge due to their intermittency. As the world installs more renewables, the peaks and troughs in power generation will extend beyond hourly or daily fluctuations into seasonal patterns. Managing these variations requires flexible energy systems that can adjust output throughout the year to balance intermittency and maintain grid stability.