UN SDG 7 & 13 · Topic 2 of 4

POWER THE
FUTURE
CLEAN

Fossil fuels drive 75% of global emissions. Renewable energy is now the cheapest electricity source in history — solar costs dropped 90% in a decade. The transition is no longer a question of technology. It's a question of will.

30%
Global electricity from renewables
90%
Drop in solar cost since 2010
3.5B
People lacking clean energy
Solar panels generating clean electricity
Solar farm generating clean electricity — South Australia, 2024.
The Big Picture

WHY
RENEWABLES?

Renewable energy comes from naturally replenishing sources — the sun, wind, water, heat of the Earth. Unlike fossil fuels, they produce little to no greenhouse gases during operation and will never run out.

The world generated 30% of its electricity from renewables in 2023. The IEA projects renewables could supply 90% of global electricity by 2050 if investment scales up — but only with the right policies and infrastructure.

Critical Moment

In 2024, renewable energy capacity additions hit a record 295 GW — equivalent to adding a new power plant every single day of the year. Solar alone accounted for 75% of all new generation capacity globally.

Energy Sources

THE CLEAN
ENERGY MIX

No single technology will power the world alone. A diverse portfolio of renewable sources provides resilience, reliability, and the scale needed to replace fossil fuels entirely.

Solar panels
☀️
SOLAR
4.5% of global electricity
Photovoltaic cells convert sunlight directly to electricity. Now the cheapest electricity ever recorded — utility-scale solar farms and rooftop panels together are the fastest-growing energy source in history.
Wind turbines
💨
WIND
7% of global electricity
Onshore and offshore wind turbines harness kinetic energy. Denmark generates over 50% of electricity from wind. Turbines last 25 years with minimal environmental footprint during operation.
Hydropower dam
💧
HYDRO
15% of global electricity
The largest source of renewable electricity globally. Dams convert flowing water to power. Pumped-storage hydro is also the world's leading form of grid-scale energy storage.
Geothermal energy
🌋
GEOTHERMAL
0.3% of global electricity
Heat from the Earth's core generates steam to drive turbines. Iceland runs on nearly 100% geothermal and hydro. Next-generation Enhanced Geothermal Systems could unlock this energy everywhere.
Biomass energy
🌾
BIOMASS
2% of global electricity
Organic material — agricultural waste, wood pellets, biofuels — can be burned or converted to biogas. Carbon-neutral when sustainably sourced. Valuable for aviation and shipping decarbonisation.
Tidal energy ocean
🌊
TIDAL / OCEAN
Emerging technology
Tidal streams, wave energy, and ocean thermal energy are predictable and vast. Still in early deployment, but countries like the UK, Canada, and Australia are investing heavily in this frontier.
Where the World Stands

GLOBAL
PROGRESS

Renewable adoption is accelerating but unevenly distributed. Some nations are leading the way; others lag due to economic and policy barriers.

295 GW
New renewable capacity added globally in 2024
$358B
Annual global clean energy investment (2024)
50+
Countries sourcing 50%+ electricity from renewables
2050
Target year for 90% global renewable electricity (IEA)
Renewable Share of Electricity (2024)
Iceland100%
Norway98%
New Zealand84%
Germany62%
India40%
USA21%
Why It Still Isn't Enough

PROGRESS,
BUT NOT FAST ENOUGH

Despite record investment, global CO₂ from energy hit a record high in 2023. Demand for electricity is growing faster than clean capacity is being added — driven by data centres, electric vehicles, and industrial electrification.

The IEA calculates that fossil fuel investment must fall from $1 trillion per year to near zero by 2030 to stay within 1.5°C. Instead, fossil fuel companies are expanding production.

The Gap

To reach net-zero by 2050, the world needs to add 10,000 GW of solar and wind by 2030 — three times the current total. That means tripling annual installations starting now.

What's Holding Us Back

THE BARRIERS

The technology exists. The economics work. These are the real obstacles preventing a faster transition to clean energy.

💰
Upfront Capital Costs
Building renewable infrastructure requires large initial investment. Developing nations often lack access to affordable financing, creating an energy inequality gap that slows the global transition.
🕸
Grid Infrastructure
Aging electricity grids can't handle decentralised, variable renewable generation. Massive grid upgrades and new transmission lines are needed — slow and expensive to build at the scale required.
🏦
Fossil Fuel Subsidies
Governments worldwide still provide over $7 trillion in fossil fuel subsidies annually. These distort markets and make renewables artificially less competitive against entrenched incumbents.
🔋
Energy Storage Gaps
Solar doesn't shine at night; wind doesn't always blow. Battery storage technology is advancing but is not yet cheap or large-scale enough to fully balance intermittent renewable generation.
📜
Policy & Regulatory Delays
Permitting for new renewable projects can take years. Complex regulations, NIMBYism, and inconsistent government policy slow deployment dramatically in many key regions worldwide.
🌐
Energy Access Inequality
750 million people have no electricity. Leapfrogging fossil fuels with off-grid solar is possible but requires targeted investment and technology transfer to the Global South.
The Path Forward

SOLUTIONS THAT WORK

The tools exist. What's needed is political will, smart policy, and massive investment to deploy them at the speed and scale the climate crisis demands.

🏭
Green Hydrogen
Produced by splitting water with renewable electricity, green hydrogen can decarbonise steel, shipping, aviation and industrial processes where direct electrification is difficult.
🔋
Long-Duration Storage
Iron-air, flow batteries, and compressed air storage can hold energy for days — solving intermittency and enabling 100% renewable grids that are stable around the clock.
🏘
Distributed Energy
Rooftop solar, community microgrids, and virtual power plants shift generation to the edges — creating resilient, decentralised systems less vulnerable to outages and infrastructure failures.
⚖️
Carbon Pricing
Putting a price on CO₂ emissions — through carbon taxes or cap-and-trade — makes renewables commercially superior and sends a clear market signal against new fossil fuel investment.
🤝
Just Transition
Supporting fossil fuel workers through reskilling, economic diversification, and new green jobs ensures the transition is fair — and politically viable over the long term.
🌍
Technology Transfer
Sharing renewable technology and financing with developing nations accelerates global adoption, raises living standards, and prevents new fossil fuel lock-in across the Global South.
Key Milestones

THE RENEWABLE REVOLUTION IN DATES

From oil crisis to energy crossover — the renewable energy revolution has been building for decades, and the pace is now accelerating faster than ever before.

1973
Oil Crisis Sparks Research
The Arab oil embargo drives governments to begin serious investment in solar and wind research as strategic energy security priorities for the first time.
2000
Germany's Energiewende Begins
Germany's Renewable Energy Act guarantees feed-in tariffs, triggering the world's first large-scale renewable energy policy revolution and proving it could work at national scale.
2015
Paris Agreement & Cost Crossover
Solar PV costs cross below wind and gas in key markets. The Paris Agreement sets global temperature targets that renewables are essential to meeting — a historic turning point.
2020
Solar Becomes Cheapest Ever
The IEA declares solar "the cheapest electricity in history." New solar auctions deliver power at under $0.02/kWh in parts of the Middle East and India.
2024
Record Renewables Addition
The world adds 295 GW of new renewable capacity — a new annual record. Solar alone generates 1% of all global energy for the first time in history.
2050
Net-Zero Target
Under IEA's Net Zero Emissions scenario, 90% of global electricity is renewable, all new cars are electric, and energy-related CO₂ emissions reach net zero — if we act now.
"THE STONE AGE DID NOT END BECAUSE THE WORLD RAN OUT OF STONE. THE FOSSIL FUEL AGE WILL END BECAUSE WE CHOOSE BETTER."
— Sheikh Ahmed Zaki Yamani, Former Saudi Oil Minister

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