New ETC report demonstrates that wind and solar-dominant power systems are competitive, reliable, and technically and economically feasible

A Global Opportunity A Global Opportunity The report shows that many countries can operate power systems with 70% or more electricity from wind and solar, using proven technologies available today, like battery storage, other energy storage, long-distance transmission, and flexible energy use. It highlights significant regional opportunities: Rapid electrification of buildings, transport and industries and decarbonisation of power systems must advance together to keep costs per...

LONDON, 29/07/2025 (informazione.news - comunicati stampa - ambiente)

A Global Opportunity

The report shows that many countries can operate power systems with 70% or more electricity from wind and solar, using proven technologies available today, like battery storage, other energy storage, long-distance transmission, and flexible energy use. It highlights significant regional opportunities:

Rapid electrification of buildings, transport and industries and decarbonisation of power systems must advance together to keep costs per kilowatt-hour affordable for consumers and businesses.

"Multiple technologies, including nuclear and geothermal, may play a role in zero-carbon power systems. But wind and solar will be the dominant source of power in most countries, providing 70% or more of electricity at costs at or below today's fossil-based systems. In particular, in the global sun belt, the collapsing cost of solar PV and batteries makes possible far cheaper and more rapid growth in green electricity supply than seemed feasible 10 years ago. But wind belt countries can also achieve cost-effective decarbonisation by leading in offshore wind, long-duration storage, and grid innovation." said  Adair Turner, Chair of the Energy Transitions Commission.

Key Findings:

"Clean electricity is essential for climate action and is the most affordable way to power economic development. Countries can build resilient economies fit for the future by investing in renewables, grids, and flexibility now. Indeed it is their obligation to do so, according to the recent ICJ advisory opinion. Low-cost, clean power is what people, industry and businesses want. Countries must deliver it now, and this report shows that they can." said Christiana Figueres, Founding Partner, Global Optimism.

Policymakers, the power industry, and financial institutions should collaborate to ensure:

"Renewables are the core of the global energy transition, delivering clean, reliable, and affordable power. Wind, solar, hydropower, geothermal, storage and modern grids are transforming electricity systems and opening new opportunities for growth, investment, and energy security.

To keep this momentum, deployment must advance alongside grid expansion, market reform, and investment. Together, these build competitive, resilient systems that support jobs and economic progress. With governments leading and the private sector supporting, renewables will deliver a clean, secure, and just energy future." said Bruce Douglas, CEO at Global Renewables Alliance.

The ETC also published a supplementary briefing, Connecting the World: Long-Distance Transmission as a Key Enabler of a Zero-Carbon Economy, focused on the role of cross-border interconnectors and long-distance transmission in accelerating the energy transition.

Additional Quotes

Additional quotes from Ausgrid, Iberdrola, Mission Possible Partnership, Octopus Energy, Schneider Electric, SSE, Ember, and Transition Zero are available here.

About the ETC:
Power Systems Transformation: Delivering Competitive, Resilient Electricity in High-Renewable Systems was developed in collaboration with ETC members from across industry, financial institutions, and civil society. The Energy Transitions Commission is a global coalition of leaders from across the energy landscape committed to achieving net-zero emissions by mid-century. This report constitutes a collective view of the ETC; however, it should not be taken as members agreeing with every finding or recommendation.

Download the report: https://url.uk.m.mimecastprotect.com/s/HXpOC14zlTp3o0nsXs4iV1vhC?domain=energy-transitions.org/

 

For further information on the ETC, please visit: https://www.energy-transitions.org

¹ BNEF (2024), New Energy Outlook.

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