For much of the past decade, discourse around renewable energy has been shaped by persistent concerns over cost, reliability, and environmental trade-offs. While some of these critiques reflected genuine limitations during the early stages of deployment, the global energy landscape has since evolved significantly.

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Criticism of and skepticism surrounding renewable energy have for years revolved around the same talking points: it is too expensive to build, the supply is too unreliable, and the environmental cost is under wraps. While some of those concerns were justified during the early stages of industry development, the latest evidence tells a different story.

The world installed 692 gigawatts of new renewable capacity in 2025, pushing the total global renewable power to over 5,149 gigawatts, or nearly half of all installed power capacity on Earth. 

Against this backdrop, Earth.Org debunks five of the most persistent myths about clean energy and explains what the data actually shows.

Myth 1: Renewable energy is too costly

One of the most persistent debates in energy policy has been the assertion that renewable energy cannot pass the commercial test without hefty state subsidies. However, a 2024 International Renewable Energy Agency (IRENA) report found that 91% of new renewable power projects commissioned globally were less expensive than the cheapest new fossil fuel option available. 

The shift has been staggering. Since 2010, the cost of solar PV has plummeted from being five times more expensive than fossil fuels to being 41% cheaper. Similarly, onshore wind has moved from a 23% premium over coal and gas to a 53% discount. This transition isn’t just about labels; in 2024 alone, the shift to renewables saved an estimated US$467 billion in global fuel expenditures. 

Unlike fossil fuels, which remain tethered to the volatile pricing of natural gas – which has swung from under $2 to over $9 per million British Thermal Units (MMBtu) in the last decade – wind and solar offer price certainty. Once installed, their “fuel” is free, insulating economies from the geopolitical shocks that routinely rock global energy markets. 

Myth 2: Renewable energy is not reliable

Historically, the most persistent technical critique of wind and solar has been intermittency. However, the rise of advanced battery storage has fundamentally changed the equation. According to IRENA, the cost of fully installed battery storage plummeted by 93% between 2010 and 2024. These grid-scale batteries act as a high-speed buffer: they react to supply shifts in milliseconds, soaking up midday solar surges and discharging that power during the evening peak.

This technological shift has sparked a massive wave of industrial confidence. The US Energy Information Administration (EIA) projects that 24 gigawatts of new utility-scale storage will come online in the US in 2026 – shattering the record of 15 GW set just last year. Most tellingly, renewables combined with storage now account for 93% of all new utility-scale capacity in the US, leaving natural gas with a meager 6.3 GW share.

In addition to stability, domestic renewable generation enhances energy security. With renewed Middle East tensions, as IRENA observed in April, governments are actively moving towards solar and wind since they cannot be targeted by export embargoes or commodity price shocks.

More on the topic: Iran War Drives Massive Surge in Planet-Heating Emissions Amid Calls to Accelerate Transition to Renewables

Myth 3: Renewable energy infrastructure has a large environmental footprint 

The claim that renewable energy has considerable hidden costs to the environment in terms of manufacturing and extraction of materials is not unfounded. The extraction of the raw materials used in the production of panels and turbines has actual ecological effects and the production process may require alternative energy. These are valid spheres of constant examination and enhancement.

The footprint, however, is nowhere near what critics suggest. Research from the National Renewable Energy Laboratory shows that wind turbines emit just 13 grams of CO2 per kilowatt-hour. Solar comes in at 43 grams. By contrast, natural gas produces 486 grams, and coal generates a massive 1,001 grams. In other words, coal is nearly 80 times more carbon-intensive than a wind turbine.

The upper-bound estimates of solar and wind – the highest emission values reported for a technology across credible lifecycle studies – are not as high as the lower-bound estimates of gas. An average wind turbine or solar panel will pay back the carbon cost of its production in a few months of operation and operate with almost zero emissions over 25 to 30 years. 

Myth 4: Clean energy kills jobs

The disruption the energy transition brings to workers in coal mining communities or oil and gas regions is real, and the policy response to that disruption has frequently been inadequate. What the employment data does not support is the broader claim that clean energy is a net destroyer of jobs across the energy economy.

Globally, the number of people working in clean energy rose from 30 million in 2019 to 35 million by 2023, surpassing fossil fuel employment for the first time. Under current policies, clean energy is projected to add 10 million more jobs by 2030, while fossil fuels are expected to shed roughly 3 million. 

In the United States, clean energy jobs grew three times faster than the overall workforce in 2024, according to the Clean Jobs America 2024 report, which compares job growth during calendar year 2024 with growth in total US employment over the same period.

In other good news, the IEA estimates that about half of the fossil fuel employees who will be facing redundancy in the next decade have skills that can be directly applied to clean energy jobs.

Myth 5: The transition is happening too slowly

Installation figures from recent years suggest that the technology rollout is proceeding faster than most forecasts anticipated. In May 2025, China added 93 gigawatts of solar capacity in a single month, a rate equivalent to roughly 100 solar panels per second. Combined wind and solar capacity in the country surpassed total thermal power capacity for the first time in early 2025, and China hit its 2030 wind and solar target in 2024, six years ahead of schedule.

On a global level, the IEA projects that renewables will surpass coal as the world’s largest electricity source by mid-2026. Electricity output from renewables is forecast to reach 16,200 TWh in 2030, up 60% from 2024. 

While global efforts still fall short of the Paris Agreement climate goals, the argument that renewable energy is too slow to reshape the world’s power systems has been overtaken by a massive surge in industrial momentum. 

Adoption of Clean Energy Around the World

Asia is the place where the transformation is taking place the fastest. In 2025, 74% of the total new renewable capacity added globally was in Asia, with 513 GW of additions increasing at 21.6% annually, with China accounting for by far the largest share. In 2024, India invested around $100 billion in clean energy, placing it among the world’s largest clean energy investors. In 2025, India also crossed a major milestone by surpassing 50% of installed electricity capacity from non‑fossil fuel sources, five years ahead of its Paris‑Agreement target. Southeast Asia is ramping up clean energy development as well, but grid and financing continue to be major challenges.

Europe has restructured its energy supply considerably since the disruption of Russian gas exports. In 2024, renewables generated 50% of the European Union’s total electricity, while fossil fuels fell to just over 25% of the electricity generation mix. The ratio of renewable to fossil fuel power investment in the EU reached 35-to-1 in 2024, compared to 6-to-1 a decade earlier. Grid permitting delays and the residual dependence on liquefied natural gas imports remain significant policy challenges.

In the US, clean energy accounted for more than 90% of new electricity capacity added in 2025, and this March, renewables briefly became the largest source of US power generation, surpassing natural gas for the first time on a monthly basis. US developers plan to add 43.4 GW of utility-scale solar and 11.8 GW of wind capacity in 2026, but that momentum is hitting a political wall. Policy uncertainty under the Trump administration – ranging from threatened tariff hikes to the freezing of federal grants – has already triggered the delay or cancellation of over $14 billion in renewable projects.

Due to its deep hydroelectric reserves, Latin America is already producing 65% of its electricity from clean sources, which is far more than the world average of 41%. Solar and wind power supply over 40% of power in Chile. In 2024 alone, wind and solar generation in Brazil grew by 36 TWh. At the regional level in Latin America and the Caribbean, the REnewables in Latin America and the Caribbean (RELAC) initiative complements these national efforts by setting a region‑wide target of at least 70% renewable electricity by 2030, although grid integration and access to finance remain key constraints.

Africa holds the starkest contrast between potential and deployment. The continent possesses an estimated 60% of the world’s best solar potential as measured by solar irradiance and 1,300 GW of high-wind capacity, yet it accounts for just 1% of global installed solar PV. Despite this, the continent recorded its highest-ever annual renewable capacity increase in 2025, adding 11.3 GW continent-wide, driven by Ethiopia, South Africa and Egypt. The barriers are structural: project financing is difficult to secure at scale, grid infrastructure is fragmented, and policy frameworks vary widely across the continent. Closing that gap is among the most urgent and least resourced challenges in the global energy transition.

What’s Next For Clean Energy?

While the transition is accelerating, we cannot ignore the friction: absolute fossil fuel use has climbed over the last decade, and grid infrastructure is struggling to keep pace with the surge in renewable capacity. Meanwhile, the capital flowing to developing nations remains a fraction of the actual opportunity. These are significant hurdles. But the evidence now shows something conclusive: renewable energy is no longer a future technology. It is already cheaper, more consistent, and more reliable than the fossil fuels of the past. 

Investment in clean energy globally in 2025 was $2.2 trillion, over two times higher than investments in fossil fuels. Whether the transition is viable or not is no longer in question. What matters now is the speed at which the appropriate financing, policy framework and grid investment can be delivered.