McKinsey & Company has released a new analysis indicating that the global energy transition is evolving into a system expansion narrative rather than merely a fuel replacement scenario. This shift is driven by increasing demand, which is prompting investments in both fossil fuels and low-carbon energy sources.
In 2025, approximately $3.3 trillion was invested in the global energy system, with around $540 billion allocated to upstream oil and $440 billion to solar energy. The analysis suggests that investments in these areas are occurring at similar scales, while essential infrastructure such as grids, transmission systems, storage solutions, flexibility, and dispatchable capacity remains insufficiently developed.
McKinsey argues that merely tracking capacity growth and investment levels is no longer adequate for assessing progress in the energy transition. Instead, it is crucial to evaluate capital investments based on the overall system value they generate, which encompasses affordability, reliability, resilience, and emissions reduction.
The report highlights that global energy demand, the deployment of clean energy, and the consumption of fossil fuels all increased in 2025, illustrating the significance of system value. It notes that no single fuel type is consistently replacing another on a global scale, as both low-carbon and fossil-fuel energy sources continue to grow simultaneously.
In 2025, solar capacity saw a growth of approximately 30%, while oil demand increased by about 1.3 million barrels per day, and coal consumption reached record highs. Overall energy demand rose by 1.3 percent, aligning with annual growth rates observed since 2013. These trends indicate that various energy sources are expanding concurrently rather than one displacing another consistently worldwide.
McKinsey’s analysis reveals that this simultaneous growth varies significantly by region and challenges the notion that renewables are universally displacing fossil fuels. The report underscores that investment volume does not equate to system value, as different technologies contribute uniquely to output, flexibility, affordability, resilience, and emissions performance.
As energy demand and generation increase, the necessary infrastructure to connect, balance, and secure supply—including grids, transmission, storage, and dispatchable backup—must also expand. To make informed investment decisions, leaders must consider current investment patterns that enhance resilience, identify assets and technologies that provide the greatest system value, and ensure that systems are constructed in the most economically efficient manner.
For policymakers, investors, utilities, and industry stakeholders, the report recommends developing portfolios that integrate low-carbon power with flexibility, dispatchability, and diversified supply chains, while also addressing permitting challenges and expediting the construction of transmission infrastructure.
This article was submitted via the World of Renewables press desk.
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