El Niño is a climate phenomenon that many people recognise by name but rarely consider until its effects begin to make headlines. This year, El Niño conditions have emerged once again, and some experts have raised the possibility of a “super El Niño” should the event intensify in the months ahead. While its impacts differ across regions, the potential consequences are already encouraging businesses to take a closer look at climate volatility, energy resilience and supply chain risk.
El Niño is a naturally occurring weather pattern caused by warmer than average sea surface temperatures in the Pacific Ocean. Although it originates thousands of miles away, its influence can be felt across the globe. Changes in ocean temperatures disrupt established weather systems, increasing the likelihood of more extreme and unpredictable conditions, from prolonged heat and drought in some regions to heavier rainfall and storms in others.
The term “super El Niño” is commonly used to describe an exceptionally strong event, one where these impacts are amplified. In the UK, the effects tend to be indirect and difficult to predict. However, El Niño can increase the chances of unsettled weather patterns, bringing wetter and windier conditions along with the possibility of colder spells during winter. Combined with the hotter, drier periods and intense rainfall already being driven by climate change, it creates a more uncertain operating environment for organisations.
For businesses, that uncertainty presents a growing challenge. Weather related disruption can affect everything from energy demand to operational resilience, making it increasingly important to plan for a wider range of scenarios.
Why Energy Demand is a Growing Concern
Weather is often viewed as a background factor in business planning, but events such as El Niño demonstrate just how reliant organisations are on stable and predictable conditions.
In many respects, the issue extends beyond a single climate event. Businesses are now operating in an era where weather extremes are becoming both more frequent and more difficult to forecast.
One of the most immediate impacts is on energy consumption. As temperatures rise, cooling requirements increase significantly. Air conditioning, refrigeration and ventilation systems must work harder and for longer periods, creating additional demand. Offices, healthcare facilities, retail environments, warehouses and data centres can all experience noticeable increases in energy usage. Even organisations that have historically relied very little on cooling may see their consumption profiles change.
At the same time, the energy infrastructure supporting those operations can come under pressure. High temperatures can affect generation efficiency and increase the likelihood of network faults. During periods of extreme heat, when energy demand surges, wholesale prices often rise as well. If those spikes coincide with broader market pressures or network constraints, energy costs can increase rapidly.
This combination of rising demand and heightened price volatility creates financial exposure for organisations. Businesses still need to operate as normal, but the cost of doing so can become significantly more unpredictable.
The Real Impact Extends Beyond Energy Costs
Energy expenditure is only one part of the risk profile. In practice, a strong El Niño event has the potential to amplify existing operational challenges.
Business resilience can be tested when equipment, IT systems and building infrastructure are exposed to conditions outside their normal operating range. Extreme weather can disrupt transport networks, impact workforce wellbeing and reduce productivity. Higher temperatures also create health and safety concerns, particularly in sectors such as manufacturing, construction and warehousing. Localised flooding can interrupt operations, damage assets and create costly downtime.
Supply chains are another area of concern. Severe weather affecting transport routes, production facilities or international suppliers can result in delays that ripple throughout an organisation. For businesses already managing complex logistics and tight margins, this adds an additional layer of uncertainty.
Climate patterns such as El Niño do more than influence weather conditions, they reveal how resilient, or vulnerable, business systems really are.
Sustainability Reporting and ESG Expectations
At the same time, stakeholder expectations around climate risk transparency continue to increase.
Frameworks such as the Task Force on Climate-related Financial Disclosures (TCFD), the forthcoming UK Sustainability Reporting Standards (SRS), Streamlined Energy and Carbon Reporting (SECR) requirements and wider ESG obligations are becoming increasingly important. Investors, regulators and customers are paying closer attention to how organisations identify, manage and disclose climate-related risks.
Periods of heightened climate volatility bring these requirements into sharper focus.
Sudden increases in electricity consumption can impact Scope 2 emissions, particularly where additional cooling is required. Increased use of backup generators or other fuel powered equipment may also affect Scope 1 emissions. Meanwhile, supply chain disruptions can influence Scope 3 emissions in ways that are often more difficult to quantify or control.
Businesses are also expected to understand and disclose their exposure to physical climate risks. Heatwaves, flooding and infrastructure stress are no longer theoretical concerns. They are current risks that should be reflected within climate assessments and reporting frameworks.
External events can also affect performance indicators such as energy intensity and carbon reduction targets. Without clear reporting and transparent context, stakeholders may find it difficult to distinguish between operational inefficiencies and climate driven impacts.
Managing the Risks
While businesses cannot prevent El Niño, they can take practical steps to reduce their exposure.
This is an ideal time to review energy strategies, resilience planning and operational preparedness. Understanding how and where energy is consumed, identifying inefficiencies and stress testing operations against extreme weather scenarios can all help improve resilience.
Simple measures such as optimising building controls, upgrading insulation and ensuring cooling systems are properly maintained can reduce the impact of sudden increases in demand. More strategic approaches, including on-site generation, battery storage and demand-side response programmes, can provide valuable flexibility when the electricity grid comes under pressure.
Embedding Resilience into Business Strategy
One area that often deserves greater attention is integration. Energy management, sustainability reporting and risk management are frequently treated as separate workstreams when, in reality, they are closely interconnected.
Climate volatility scenarios, including strong El Niño events, should form part of TCFD-aligned scenario analysis and broader strategic planning. Organisations need to understand how prolonged heat, severe weather or energy disruption could affect costs, operations and performance.
Strong governance, reliable data and consistent reporting processes are critical. Not only do these support compliance with sustainability reporting and ESG disclosures, but they also provide stakeholders with confidence that climate related risks are being actively managed.
Looking Ahead
It may be tempting to view El Niño as a temporary challenge that businesses simply need to navigate before conditions return to normal. However, that perspective risks overlooking the broader trend.
Whether or not this develops into the ‘super El Niño’ some commentators anticipate, the underlying message remains the same: climate volatility is becoming a core business risk.
This event is unfolding against a backdrop of long-term climate change, rising baseline temperatures and more frequent weather extremes. It serves as a reminder of how quickly operating conditions can shift and how exposed organisations are to climate variability.
The businesses that respond proactively by improving efficiency, strengthening resilience and embedding climate risk into decision-making processes will be better positioned not only for this event but for future challenges as well.
Because one thing is increasingly clear: climate volatility is no longer a distant possibility. It is a present-day reality, and organisations must be prepared for what comes next.
About Tim Holman – Head of Consultancy, MSc, MEng, CEng, MEI
Tim directs TEAM’s consultancy practice, applying 25+ years in strategy, audits, metering, and compliance to deliver robust, audit‑ready results for customers. A Chartered Energy Engineer and Member of the Energy Institute, Tim holds an MSc in Energy Conservation and the Environment from Cranfield University and an MEng in Mechanical Engineering from the University of Salford.
