Renewable energy could power the world by 2050. Here’s what that future might look like

solar panels_

(Credit: Unsplash)

This article is brought to you thanks to the collaboration of The European Sting with the World Economic Forum.

Author: Johnny Wood, Senior Writer, Formative Content


  • It’s possible to switch to a fully sustainable global energy landscape within the next 30 years, according to research.
  • Greater geographical connectivity of solar, wind and hydro power, can reduce energy use and cut costs.
  • Without the support of policymakers, businesses and other organizations, the transition may not happen quickly enough to stay under the 1.5° Paris global warming target.

What would a more sustainable world powered by renewable energy look like? We have a better sense, thanks to a special collection of research from experts from around the globe.

Collated by Stanford University, a collection of 47 peer-reviewed research papers by 91 authors analysed different scenarios to examine whether individual countries or entire regions could get by solely relying on renewables.

The papers look at a range of different situations and geographies, including small island states, major powers and countries in sub-Saharan Africa. In each case, they found energy for electricity, transport, building heating or cooling, and industry can be supplied reliably with 100% — or near-100% — renewable energy, at different locations around the world.

Renewable world

One study in the collection looked at global warming, air pollution and energy insecurity, creating Green New Deal roadmaps for 143 countries to overcome these problems.

The roadmaps call for these countries, which are collectively responsible for 99.7% of global CO2 emissions, to switch to 100% clean, renewable wind, water and solar power no later than 2050, with at least 80% renewables by 2030.

The study divides all the planet’s countries into 24 regions which can work together on grid stability and energy storage solutions, so energy demand matches supply between 2050 to 2052. After that, it’s possible to power the planet entirely by sustainable energy.

Switching to wind, water and solar worldwide could eliminate 4 to 7 million deaths from air pollution annually, while first slowing and then reversing the effects of global warming and, in doing so, stabilizing the global energy sector.

What’s the World Economic Forum doing about the transition to clean energy?

Moving to clean energy is key to combating climate change, yet in the past five years, the energy transition has stagnated.

Energy consumption and production contribute to two-thirds of global emissions, and 81% of the global energy system is still based on fossil fuels, the same percentage as 30 years ago. Plus, improvements in the energy intensity of the global economy (the amount of energy used per unit of economic activity) are slowing. In 2018 energy intensity improved by 1.2%, the slowest rate since 2010.

Effective policies, private-sector action and public-private cooperation are needed to create a more inclusive, sustainable, affordable and secure global energy system.

Benchmarking progress is essential to a successful transition. The World Economic Forum’s Energy Transition Index, which ranks 115 economies on how well they balance energy security and access with environmental sustainability and affordability, shows that the biggest challenge facing energy transition is the lack of readiness among the world’s largest emitters, including US, China, India and Russia. The 10 countries that score the highest in terms of readiness account for only 2.6% of global annual emissions.

To future-proof the global energy system, the Forum’s Shaping the Future of Energy and Materials Platform is working on initiatives including, Systemic Efficiency, Innovation and Clean Energy and the Global Battery Alliance to encourage and enable innovative energy investments, technologies and solutions.

Is your organisation interested in working with the World Economic Forum? Find out more here.

Building a North American super grid

A study by researchers in Finland looked at the feasibility of building a renewables super grid connecting the regions of North America, including the US, Canada and Mexico.

Dividing the regions into 20 interconnected sub-regions, based on population, energy demand, area and electricity grid structure, could significantly reduce storage requirements and overall cost of the energy system, they found.

While replacing fossil fuels with mainly wind and solar power is entirely possible by 2030, such a dramatic transformation couldn’t be achieved in the short-term without the full support of policymakers, investors and many other relevant organizations.

Moving away from oil

Saudi Arabia can transition to a 100% renewable energy system by 2040, according to another Finnish study. While the country is known for its oil deposits, it is also rich in another energy source: sunshine to power solar energy.

By 2050, solar power could account for 79% of the country’s energy demand, supported by enhanced battery and water storage solutions to lower energy system costs.

This study emphasizes the central role that energy storage will play in the transition to a sustainable energy landscape, to overcome the intermittent nature of solar and wind resources and provide power when there is no wind or sunshine.

Projected electricity generation worldwide to 2050

environment renewable solar energy change transition friendly environment carbon footprint carbon emissions reduction change natural climate change global warming air pollution clean energy power renewables plastic plastics Weather extreme storm hurricane typhoon flooding flood floods danger rain wind windy rainy flash floods
Energy generation could reach more than 21 trillion kilowatt hours by 2050
Image: Statista

A greener future?

To be sure, challenges exist and the targets are ambitious. Still, the reports all conclude that the technology exists for the world to transition to a fully sustainable energy system by 2050, which should keep the planet below the 1.5° Paris global warming target.

Mitigating the impact of climate change means fewer floods, storms, droughts and other extremes caused by warming temperatures.

It could also mean less pollution. Nine out of every 10 people on the planet breathe polluted air, according to the World Health Organization, which can lead to respiratory diseases, heart conditions, strokes and other life-threatening diseases.

Pollution, largely from burning fossil fuels, kills up to seven million people annually, with low and middle-income countries carrying the highest burden. This includes exposure to toxic fumes from using wood, coal or dung as the primary cooking fuel.

A future powered by wind, solar and other sustainable energy sources, could also reduce energy bills. The costs of producing wind and solar have plummeted in recent years and renewables remain on course to outprice fossil fuels in future.

This future could be attainable, the researchers stress, provide urgent action is taken by a range of stakeholders, including policymakers, business leaders and other stakeholders. Through collaboration, the world can speed its transition to sustainable energy and a sustainable future.

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