Delhi’s 45°C Heatwave Crisis: Is a Phygital Heat Economy the Solution?

Delhi’s 45°C Heatwave Crisis: Is a Phygital Heat Economy the Solution?

Delhi is bracing for a severe heatwave with temperatures projected to hit 45°C, posing significant risks to public health and the power grid. To address this recurring crisis, experts suggest a transition to a “phygital” heat economy, moving from individual air conditioning units to an AI-driven “Cooling as a Service” (CaaS) model.

RMN News Delhi Desk
New Delhi | May 17, 2026

The Meteorological Emergency in Delhi

As May 2026 progresses, the India Meteorological Department (IMD) has issued a severe warning for Delhi and much of North India. Temperatures in the capital are expected to rise by 2-3 degrees Celsius over the coming days, likely peaking at 45°C. This extreme weather is not an isolated event; heatwave conditions are forecast to prevail until at least May 22 across Rajasthan, Uttar Pradesh, Punjab, Haryana, and Delhi.

According to the IMD, a heatwave in the plains is declared when temperatures reach at least 40°C and are 4.5°C to 6.4°C above the normal range. A “severe” heatwave is designated when temperatures exceed 45°C regardless of the departure from the average. For Delhi residents, this means not only blistering daytime heat but also “hot nights” that offer very little physiological relief. The health implications are dire, with prolonged exposure potentially leading to heat exhaustion and life-threatening heatstroke, particularly for vulnerable groups like children, the elderly, and outdoor workers.

The Failure of the Traditional Cooling Model

Currently, Delhi’s primary defense against extreme heat is the individual air conditioner. However, this traditional “Capex” model—where consumers pay a high upfront cost to own a machine—is becoming increasingly unsustainable. The widespread use of millions of independent AC units creates a massive strain on the city’s electricity grid and worsens the urban heat island effect.

Furthermore, reliance on individual units contributes to significant greenhouse gas emissions, creating a feedback loop that intensifies future heatwaves. There is also a glaring issue of inequality: high-quality cooling remains a luxury that many of Delhi’s residents cannot afford, leaving a significant portion of the population exposed to dangerous temperatures. Climate studies indicate that India’s cooling demand could rise by nearly 40 percent by 2040, suggesting that the current infrastructure will likely collapse under future loads.

The Rise of the Phygital Heat Economy

To combat these challenges, a new paradigm known as the “phygital” heat economy is being proposed. This model merges physical infrastructure with digital intelligence to provide cooling as a shared service rather than a private product.

Central to this concept is “Cooling as a Service” (CaaS). Under this “Opex” (operational expenditure) model, residents do not own AC units; instead, they subscribe to cooling services much like they do for WiFi or streaming platforms. This shifts the burden of maintenance and efficiency to the provider, while users pay only for the cooling they consume.

The physical component of this economy involves “district cooling systems”. These are centralized plants that produce chilled water and distribute it through a network of underground pipes to multiple buildings in a neighborhood. These centralized systems are far more energy-efficient than thousands of individual units running simultaneously.

AI Optimization and Intelligent Infrastructure

The “digital” aspect of the phygital economy relies on Artificial Intelligence to manage demand. AI systems can monitor cooling usage in real-time, predicting peak loads and adjusting the supply of chilled water to prevent grid overloads during the hottest parts of the day. At night, the system can automatically scale down, ensuring that no energy is wasted.

This intelligent network allows for a balance between different types of consumers. For instance, cooling loads can be shifted between commercial hubs—which require massive energy during the day—and residential areas that need more support in the evenings. This optimization ensures that cooling is directed exactly where and when it is needed most.

Policy Frameworks and Implementation Challenges

Transitioning to a phygital economy requires more than just technology; it requires robust urban planning and policy support. The India Cooling Action Plan already acknowledges the need for sustainable solutions, but implementation remains the primary hurdle. Retrofitting the dense, often unplanned neighborhoods of old Delhi with district cooling pipes presents a massive logistical challenge.

Beyond infrastructure, there are alternative “passive” cooling strategies that must be integrated. These include:

• Cool Roofs: Designed to reflect sunlight and reduce indoor temperatures naturally.
• Permeable Paving: Allowing water to seep into the ground to cool the surrounding environment.

The Social Dimension and the Path Forward

For a subscription-based cooling model to succeed, there must be a shift in consumer mindset. Ownership is often equated with control, and residents may be hesitant to rely on a third-party provider when temperatures exceed 45°C. Transparency and service reliability will be critical in gaining public trust.

Moreover, equity must remain a central tenet of the phygital economy. If regulated properly, CaaS has the potential to bridge the cooling gap by making thermal comfort affordable for lower-income families through monthly fees rather than large capital investments.

Delhi stands at a crossroads. The city can continue with its current path of individual AC units, leading to rising emissions and power failures, or it can embrace a smarter, shared future. As heatwaves become the “new normal,” the adoption of a phygital cooling economy may no longer be a choice, but a necessity for survival.