Global Electricity Trends: The Shift Toward Renewables and the Growth of Solar Power

Global electricity generation is undergoing a fundamental transformation as renewable energy sources claim a larger share of the power mix. According to data from the independent think tank Ember, renewable energy—comprising wind, solar, hydropower, bioenergy, and other sources—now accounts for a significant portion of worldwide electricity production, effectively narrowing the long-standing dominance of fossil fuels. While coal and natural gas remain the primary drivers of global electricity, their percentage of the total generation has steadily declined over the last two decades.

The Decline of Fossil Fuels and the Rise of Renewables

The global energy landscape has shifted notably since the turn of the century. In 2000, approximately 65% of global electricity was generated by burning coal, gas, or other fossil fuels. By 2025, that figure had dropped to 57%. Coal, in particular, has faced a sharp decline; after reaching a peak of 41% of global electricity generation in 2013, its contribution fell to 33% by 2025.

Conversely, the adoption of wind and solar power has accelerated. These two sources combined provided less than 5% of global electricity in 2015 but grew to account for 17% by 2025. This growth is largely attributed to the plummeting costs of solar technology. Research from Pew Research Center indicates that the average price of a solar panel has fallen by more than 99% over the last 50 years, dropping from an average of $128 per watt in 1975 to approximately $0.26 per watt in 2024.

Regional Variations in Energy Production

The transition to renewable energy is not uniform across the globe. Regional infrastructure and policy decisions have created distinct energy profiles:

• European Union: The EU has made significant strides in decarbonization, with renewables accounting for 48% of its electricity generation as of 2025.
• North America and Africa: Both regions have seen a shift away from coal in favor of natural gas. In North America, natural gas now far exceeds coal as a source.
• Asia: China, in particular, has become a global leader in clean-energy manufacturing, with its solar and wind generation surging annually.
• Brazil and Canada: These nations have long relied on hydroelectric power, allowing them to maintain a high percentage of renewable energy in their respective grids compared to the global average.

The Role of Nuclear Energy

Nuclear power’s contribution to the global electricity supply has seen a downward trend, falling from 17% in 2000 to 9% in 2025. The trajectory of nuclear energy varies by country due to safety concerns and national policy.

Future Outlook and Demand

Global electricity demand has increased sharply in recent decades. As global demand continues to rise, the challenge for many nations is to expand capacity while meeting climate goals. While fossil fuels still dominate the global energy mix, the rapid scaling of solar and wind technologies suggests that the energy transition will remain a central feature of global infrastructure development for the coming decades.

Frequently Asked Questions

• Why is solar power growing so quickly? The primary driver is the massive reduction in manufacturing costs, which has made solar energy cost-competitive with traditional fossil fuels in many markets.
• Is electricity demand still increasing? Yes. Global electricity demand has increased sharply in recent decades.
• How do renewables compare to coal today? In 2025, renewable sources accounted for a slightly larger share of global electricity production than coal (34% vs. 33%).