In the first half of 2025, global investment in renewable energy technologies and projects surged to a record $386 billion, marking a 10% increase compared to the same period in 2024. This growth underscores the resilience and momentum of the clean energy sector, even as political headwinds, particularly from the Trump administration’s rollback of low-carbon initiatives, have posed challenges.
Key Drivers of Investment Growth
The significant rise in renewable energy investment was primarily driven by substantial financing in onshore and offshore wind projects, which collectively attracted approximately $126 billion. Offshore wind, in particular, saw a notable uptick, with China and Europe leading the way in installations and financing. Additionally, small-scale solar projects experienced a near doubling of investment in regions like China, further contributing to the overall growth. The Guardian
A report from Zero Carbon Analytics highlights that while the rate of growth has slightly slowed compared to previous years—12% between 2023 and 2024, down from 17% between 2022 and 2023—the sector’s underlying strength remains robust. This indicates that renewable energy investment continues to be a compelling proposition for investors worldwide. The Guardian
Global Energy Investment Outlook
The International Energy Agency (IEA) projects that total global energy investment will reach a record $3.3 trillion in 2025. Of this, approximately $2.2 trillion is expected to flow into clean energy technologies, including renewables, nuclear, and energy storage, more than doubling the investment in fossil fuels. Solar energy is anticipated to lead with an investment of $450 billion, while battery storage investments are projected to rise to about $66 billion, addressing the intermittency of renewable power sources. Reuters
Corporate Commitments to Net-Zero Goals
Despite the federal government’s withdrawal from the Paris Agreement and efforts to dismantle climate policies, a significant number of U.S. companies continue to pursue net-zero targets. According to the Net Zero Tracker, companies representing about 70% of the revenue of the top 2,000 listed firms globally are actively pursuing net-zero plans. In the U.S., 19 states remain committed to net-zero goals, and 304 large companies headquartered in the U.S. have set net-zero targets, up from 279 the previous year. These companies collectively account for nearly two-thirds of U.S. corporate revenue, or about $12 trillion in revenue globally. The Guardian
Challenges and Areas for Improvement
While the growth in renewable energy investment is promising, several challenges persist. Aging and inadequate grid infrastructure remains a significant bottleneck for the achievement of renewable energy goals. The IEA has highlighted a shortfall in grid infrastructure spending, currently at $400 billion annually, which lags behind generation investments and poses risks to electricity security. This gap needs to close by the early 2030s to ensure the effective integration of renewable energy sources into the grid. Reuters
Conclusion
The record investment in renewable energy in the first half of 2025 demonstrates the sector’s resilience and the growing commitment to a sustainable energy future. Despite political challenges, both governments and corporations are making significant strides toward achieving net-zero emissions. However, addressing infrastructure gaps and ensuring equitable access to clean energy remain critical to maintaining this momentum and achieving global climate goals.
In another news
Solar panels in space could cut Europe’s terrestrial renewable energy needs by 80% by 2050, a study has found.
Using a detailed computer model of the continent’s future power grid, the researchers found that a system of space-based panels designed by Nasa could reduce the cost of the whole European power system by as much as 15%. It could also cut battery use by more than two-thirds.
The study, led by researchers at King’s College London, is the first to assess the possible impact of space solar energy on Europe. The space-based solar power (SBSP) panels that yielded the positive results uses a heliostat design. The design, which the system imitates, uses mirror-like reflectors to collect sunlight in orbit. The sunlight is then transmitted to stations on Earth and converted to electricity before it is delivered to an energy grid.
The computer model of the continent’s power grid spans 33 countries, and simulates electricity demand, generation and storage to identify the lowest-cost option to meet Europe’s electricity needs.
When the researchers integrated the SBSP concept into the model based on Nasa’s predictions of its potential energy capacity, results showed that it could replace as much as 80% of Europe’s land-based renewable energy.
Land-based renewable energy is irregular and weather-dependent, complicating reliable supply, and comes at varying costs, the researchers point out. SBSPs could be an alternative centralised energy resource that operates above the atmosphere with continuous gigawatt-scale power.
The authors note that the modelling does not account for potential impacts from space-specific challenges such as orbital congestion, transmission interruptions or beaming variability, which could influence SBSP reliability and operational performance.
Nor could the potential cost-effectiveness of SBSP be realised until 2050 because building, launching and maintaining it would be too expensive unless technological growth reduces its costs.
Dr Wei He, a senior lecturer at KCL’s engineering department and lead author of the study, which is published in Joule, said: “There are some risks to consider, such as how the satellite in space could have too many solar panels. Could it cause collisions or be damaged by debris in space?”
Despite those risks, Wei believes the research shows that SBSP has the potential to help countries in achieving net zero. “Renewable energy to replace fossil fuels is the most important action we are taking as humans. Space-based solar power is a potential technology and can provide continuous solar power as a renewable energy source,” he said.
Japan is already developing SBSP and integrating it into its space and net-zero strategy, Wei said.