OPINION | The next challenge for renewable energy is efficiency

The global shift to clean energy is accelerating, with renewables contributing 40.9 per cent of total electricity generation last year.

As this transition advances, the real challenge for policymakers and industry leaders is striking the right balance, ensuring operational efficiency today while building a resilient, sustainable energy future.

Efficiency and sustainability go hand in hand, but they are not the same. Efficiency is about getting more done with fewer resources, while sustainability looks at the bigger picture—reducing carbon, protecting the environment, and supporting communities. Sometimes one goal can slow the other, so finding the right balance is key.

The shift from conventional to clean energy requires significant investment in infrastructure, land, and technology. However, long-term sustainability relies on operating these systems efficiently to maximise clean power and minimise waste. Solar panels need regular cleaning in dusty regions, and wind turbines carry higher maintenance costs, but neglecting upkeep can cause energy losses of up to 30 per cent, reducing both economic returns and environmental benefits.

Solar panels maximise sunlight conversion into clean electricity, while wind turbines capture wind energy with minimal loss. Technology now plays a key role in sustainability—AI-driven analytics, advanced materials, smart grids, and predictive maintenance not only reduce energy losses but also lower costs per kilowatt-hour. These innovations enhance efficiency, reliability, and long-term environmental benefits, strengthening the commercial viability of Renewable Energy (RE).

High efficiency doesn’t always mean low environmental impact. Rare earth mining for advanced solar cells raises ethical and ecological concerns, while wind farms in fragile habitats may disrupt biodiversity. Even simple factors like uncleaned solar panels can cut output by up to 30 per cent.

True sustainability requires not only decarbonisation but also responsible sourcing, ecological care, and consistent maintenance to balance performance with long-term environmental stewardship.

Enhancing sustainability requires a broader perspective, cutting carbon footprints, sourcing responsibly, and securing long-term benefits for both communities and ecosystems. Trade-offs are inevitable: for instance, floating solar may generate less power than offshore wind but conserves land and reduces water evaporation, offering vital advantages for resource-scarce regions.

The way forward lies in combining efficiency with sustainability. Bifacial solar panels boost output while saving land. Meanwhile, AI- and IoT-driven Renewable Asset Management enables predictive maintenance, real-time diagnostics, and automated monitoring, maximising uptime while minimising environmental impact.

A circular economy approach is vital for Renewable Assets. Designing solar panels, batteries, and turbine blades for recyclability cuts landfill waste, extends lifecycles, and reduces demand for new materials.

Policy plays a key role—by setting recyclability standards, promoting local sourcing, and mandating impact assessments, governments can ensure the clean energy transition is both sustainable and responsible.

Equally important is the human element: a skilled, adaptable workforce trained in AI-driven maintenance, sustainable practices, and efficient operations. When people, technology, and policy align, RE can achieve its full potential.

Striking a balance between efficiency and sustainability isn’t just possible; it’s necessary! 

The author is Chief Sustainability Officer (CSO) at POWERCON.

The opinions expressed in this article are those of the author/s and do not purport to reflect the opinions or views of THE WEEK.