Solar energy has officially claimed the title of the world’s most affordable source of electricity. According to new research from the University of Surrey’s Advanced Technology Institute (ATI), solar power now costs as little as £0.02 per kilowatt-hour in the sunniest regions.
The study, published in Energy and Environmental Materials, highlights how solar photovoltaic (PV) technology has transformed from a niche innovation into the backbone of the global clean energy revolution.
As countries race to cut carbon emissions and combat climate change, the rapidly falling cost of solar power is unlocking access to clean energy on an unprecedented scale.
Solar Becomes the Cornerstone of a Low-Carbon Future
Professor Ravi Silva, co-author of the study and Director of the ATI, emphasized that even in less sunny nations like the UK, solar power has become the most cost-effective option for large-scale generation.
He precisely noted,
“Even here in the UK, a country that sits 50 degrees north of the equator, solar is the cheapest option for large-scale energy generation. Globally, the total amount of solar power installed passed 1.5 terawatts in 2024 – twice as much as in 2020 and enough to power hundreds of millions of homes. Simply put, this technology is no longer a moonshot prospect but a foundational part of the resilient, low-carbon energy future that we all want to bring to reality.”
This milestone shows that solar energy is no longer experimental. It’s a proven cornerstone of the low-carbon future the world is building toward.
Alongside solar, the cost of lithium-ion batteries—key to storing renewable power—has dropped by a staggering 89% since 2010. This sharp decline has made solar-plus-storage systems a competitive alternative to conventional gas-fired power plants.

Global Solar Costs Fall Over 80% in a Decade
According to the International Renewable Energy Agency (IRENA), the global weighted-average levelized cost of electricity (LCOE) for utility-scale solar PV dropped by over 80% between 2010 and 2023. In sun-rich regions, it now costs as little as $0.03 per kilowatt-hour—making it the cheapest source of new electricity generation worldwide.
This steep decline stems from a mix of technological, economic, and policy factors. Breakthroughs in solar cell efficiency, bifacial modules, and tracking systems have dramatically boosted energy output.
China’s Role in Falling Clean Energy Costs
Meanwhile, bigger economies, especially from large-scale manufacturing in China, have lowered hardware and installation costs.
Bloomberg also expects the cost of clean energy technologies, i.e., solar, wind, and battery storage, to drop further in 2025. It could be falling 2–11% and breaking last year’s records. In almost every part of the world, new solar and wind farms are now cheaper to build and operate than new coal or gas plants
Significantly, China’s overcapacity in clean tech has led some countries to impose import tariffs, temporarily slowing cost declines. Still, BNEF expects levelized costs for clean energy to fall 22–49% by 2035, keeping renewables on track for long-term growth.
- Battery storage costs dropped a third in 2024 to $104/MWh, driven by oversupply from slower EV sales, with prices expected to cross $100/MWh in 2025.
- Fixed-axis solar farms fell 21% globally, while wind and solar generation costs are projected to decline another 4% and 2%. It ensures clean energy remains cheaper than fossil fuels.

- ALSO READ: Renewable Energy Investment Reaches Record High as China Operates World’s Biggest Solar Farm
Storage Revolution: Solar Power Around the Clock
The global energy storage boom has turned solar from an intermittent resource into a 24-hour power solution. It’s because of the massive cost reductions in batteries, solar-plus-storage systems can now compete head-to-head with gas-fired plants.
However, challenges remain in connecting large volumes of solar power to existing grids. Regions like California and China have already experienced energy curtailment due to grid congestion when solar output exceeds demand.
Dr. Ehsan Rezaee, co-author of the University of Surrey study, noted that “smart grids, artificial intelligence forecasting, and stronger regional interconnections will be essential to maintain power system stability as renewable adoption grows.”
Global Policy Boosts vs. U.S. Uncertainty
Supportive policy frameworks are key to sustaining solar’s momentum. In Europe, the Green Deal and RePowerEU initiatives have simplified permitting and set aggressive renewable targets.
India’s Production Linked Incentive (PLI) scheme, meanwhile, is strengthening local solar manufacturing to reduce dependence on imports. These measures are not only cutting carbon emissions but also advancing energy security, job creation, and economic growth.
International partnerships, such as the International Solar Alliance (ISA), continue to drive collaboration, knowledge exchange, and capacity building, particularly in developing nations that stand to benefit most from affordable solar energy.
OBBBA: Dimming the Sunshine
However, the story is slightly different in the U.S. In July 2025, President Trump signed the One Big Beautiful Bill Act (OBBBA), which speeds up the phase-out or early termination of most renewable energy tax credits and clean energy incentives established under the IRA.
As a result, U.S. clean energy incentives are being rapidly scaled back, with many tax credits set to expire or face new restrictions and deadlines, creating significant uncertainty for investors and project developers.
Breakthrough Technologies Drive the Next Wave
Solar technology innovation is accelerating at record speed. Researchers at the University of Sydney recently achieved a world-first breakthrough with a 16 cm² triple-junction perovskite solar cell delivering 23.3% efficiency for large-area devices. A smaller version reached 27.06% efficiency—the highest globally—and retained 95% performance after 400 hours of continuous operation.
Perovskite solar cells could revolutionize the market by boosting energy output by up to 50% without expanding land use. They can be made as thin, flexible films at lower temperatures than traditional silicon panels, cutting production costs significantly. Over the past decade, perovskite efficiency has soared from 3% to over 25%, with tandem cells poised to exceed 30%. These innovations will further drive down solar costs and expand applications across rooftops, vehicles, and portable systems.
Solar Dominates Future Renewable Growth
The International Energy Agency (IEA) forecasts that global renewable capacity will double by 2030—adding 4,600 gigawatts (GW), equivalent to the combined power generation capacity of China, the EU, and Japan.
- Solar PV will account for nearly 80% of this growth, followed by wind, hydropower, and bioenergy.

According to DNV’s latest Energy Transition Outlook, global solar capacity is expected to surpass 3,000 GW by the end of 2025, with China holding 47% and Europe 20%. It further highlights:
- Solar already generates about 10% of the world’s electricity and is projected to reach 20% by 2029 and 40% by 2045.
- Behind-the-meter (BTM) solar used by households and businesses is also on the rise and is expected to make up 30% of total solar generation by 2060.
- Wind power is projected to nearly double to over 2,000 GW by 2030, but solar remains the lowest-cost option in most markets.
India is emerging as the second-fastest renewables market after China, advancing its 2030 targets. Expanded auctions and rapid rooftop solar growth contribute to the solar boom.
However, the world still falls short of the COP28 goal to triple renewable capacity by 2030, achieving about a 2.6-fold increase from 2022 levels. Closing this gap will require continued investment, innovation, and political will.
Building a Resilient Solar Future
As solar continues to dominate the global energy landscape, integration challenges must not be ignored. Expanding transmission networks, deploying digital grid management tools, and investing in advanced materials will be crucial.
Professor Silva emphasizes that sustained policy backing and continued innovation will determine how quickly the world transitions to a clean, resilient energy future.
The Renewable Energy Institute applauds solar’s rise as the cheapest source of electricity and continues to provide accredited training to build the skills needed to sustain this momentum.
Thus, from record-low costs to record-breaking efficiency, solar energy is reshaping the global energy system faster than anyone imagined. Its combination of affordability, scalability, and innovation is driving the clean energy transition forward.
The question now isn’t if solar will dominate, but how quickly the world can harness its full potential.
The post Solar Now the World’s Cheapest Energy, Powering the Clean Transition appeared first on Carbon Credits.
Carbon Footprint
The real cost of 1 tonne of CO2: Translating carbon into hectares
Every business carbon footprint report ends with a number, the amount of carbon emissions produced by the business, less the amount of carbon reduced and offset, given in tonnes of CO₂. Many of the people who sign off on that number, including those who paid for it, cannot picture what it represents on the ground. A tonne is a unit of mass. CO₂ is invisible. The link between the amount offset in the report and a real piece of restored forest somewhere in the world is almost never indicated.
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Carbon Footprint
Finding Nature Based Solutions in Your Supply Chain
Carbon Footprint
How Climate Change Is Raising the Cost of Living
Americans are paying more for insurance, electricity, taxes, and home repairs every year. What many people may not realize is that climate change is already one of the drivers behind those rising costs.
For many households, climate change is no longer just an environmental issue. It is becoming a cost-of-living issue. While climate impacts like melting glaciers and shrinking polar ice can feel distant from everyday life, the financial effects are already showing up in monthly budgets across the country.
Today, a larger share of household income is consumed by fixed costs such as housing, insurance, utilities, and healthcare. (3) Climate change and climate inaction are adding pressure to many of those expenses through higher disaster recovery costs, rising energy demand, infrastructure repairs, and increased insurance risk.
The goal of this article is to help connect climate change to the everyday financial realities people already experience. Regardless of where someone stands on climate policy, it is important to recognize that climate change is already increasing costs for households, businesses, and taxpayers across the United States.
More conservative estimates indicate that the average household has experienced an increase of about $400 per year from observed climate change, while less conservative estimates suggest an increase of $900.(1) Those in more disaster-prone regions of the country face disproportionate costs, with some households experiencing climate-related costs averaging $1,300 per year.(1) Another study found that climate adaptation costs driven by climate change have already consumed over 3% of personal income in the U.S. since 2015.(9) By the end of the century, housing units could spend an additional $5,600 on adaptation costs.(1)
Whether we realize it or not, Americans are already paying for climate change through higher insurance premiums, energy costs, taxes, and infrastructure repairs. These growing expenses are often referred to as climate adaptation costs.
Without meaningful climate action, these costs are expected to continue rising. Choosing not to invest in climate action is also choosing to spend more on climate adaptation.
Here are a few ways climate change is already increasing the cost of living:
- Higher insurance costs from more frequent and severe storms
- Higher energy use during longer and hotter summers
- Higher electricity rates tied to storm recovery and grid upgrades
- Higher government spending and taxpayer-funded disaster recovery costs
The real debate is not whether climate change costs money. Americans are already paying for it. The question is where we want those costs to go. Should we invest more in climate action to help reduce future climate adaptation costs, or continue paying growing recovery and adaptation expenses in everyday life?
How Climate Change Is Increasing Insurance Costs
There is one industry that closely tracks the financial impact of natural disasters: insurance. Insurance companies are focused on assessing risk, estimating damages, and collecting enough revenue to cover losses and remain financially stable.
Comparing the 20-year periods 1980–1999 and 2000–2019, climate-related disasters increased 83% globally from 3,656 events to 6,681 events. The average time between billion-dollar disasters dropped from 82 days during the 1980s to 16 days during the last 10 years, and in 2025 the average time between disasters fell to just 10 days. (6)
According to the reinsurance firm Munich Re, total economic losses from natural disasters in 2024 exceeded $320 billion globally, nearly 40% higher than the decade-long annual average. Average annual inflation-adjusted costs more than quadrupled from $22.6 billion per year in the 1980s to $102 billion per year in the 2010s. Costs increased further to an average of $153.2 billion annually during 2020–2024, representing another 50% increase over the 2010s. (6)
In the United States, billion-dollar weather and climate disasters have also increased significantly. The average number of billion-dollar disasters per year has grown from roughly three annually during the 1980s to 19 annually over the last decade. In 2023 and 2024, the U.S. recorded 28 and 27 billion-dollar disasters respectively, both setting new records. (6)
The growing impact of climate change is one reason insurance costs continue to rise. “There are two things that drive insurance loss costs, which is the frequency of events and how much they cost,” said Robert Passmore, assistant vice president of personal lines at the Property Casualty Insurers Association of America. “So, as these events become more frequent, that’s definitely going to have an impact.” (8)
After adjusting for inflation, insurance costs have steadily increased over time. From 2000 to 2020, insurance costs consistently grew faster than the Consumer Price Index due to rising rebuilding costs and weather-related losses.(3) Between 2020 and 2023 alone, the average home insurance premium increased from $75 to $360 due to climate change impacts, with disaster-prone regions experiencing especially steep increases.(1) Since 2015, homeowners in some regions affected by more extreme weather have seen home insurance costs increased by nearly 57%.(1) Some insurers have also limited or stopped offering coverage in high-risk areas.(7)
For many families, rising insurance costs are no longer occasional financial burdens. They are becoming recurring monthly expenses tied directly to growing climate risk.
How Rising Temperatures Increase Household Energy Costs

The financial impacts of climate change extend beyond insurance. Rising temperatures are also changing how much energy Americans use and how utilities plan for future electricity demand.
Between 1950 and 2010, per capita electricity use increased 10-fold, though usage has flattened or slightly declined since 2012 due to more efficient appliances and LED lighting. (3) A significant share of increased energy demand comes from cooling needs associated with higher temperatures.
Over the last 20 years, the United States has experienced increasing Cooling Degree Days (CDD) and decreasing Heating Degree Days (HDD). Nearly all counties have become warmer over the past three decades, with some areas experiencing several hundred additional cooling degree days, equivalent to roughly one additional degree of warmth on most days. (1) This trend reflects a warming climate where air conditioning demand is increasing while heating demand generally declines. (4)
As temperatures continue rising, households are expected to spend more on cooling than they save on heating. The U.S. Energy Information Administration (EIA) projects that by 2050, national Heating Degree Days will be 11% lower while Cooling Degree Days will be 28% higher than 2021 levels. Cooling demand is projected to rise 2.5 times faster than heating demand declines. (5)
These projections come from energy and infrastructure experts planning for future electricity demand and grid capacity needs. Utilities and grid operators are already preparing for higher peak summer electricity loads caused by rising temperatures. (5)
Longer and hotter summers also affect how homes and buildings are designed. Buildings constructed for past climate conditions may require upgrades such as larger air conditioning systems, stronger insulation, and improved ventilation to remain comfortable and energy efficient in the future. (10)
For many households, this means higher monthly utility bills and potentially higher long-term home improvement costs as temperatures continue to rise.
How Climate Change Affects Electricity Rates
On an inflation-adjusted basis, average U.S. residential electricity rates are slightly lower today than they were 50 years ago. (2) However, climate-related damage to utility infrastructure is creating new upward pressure on electricity costs.
Electric utilities rely heavily on above-ground poles, wires, transformers, and substations that can be damaged by hurricanes, storms, floods, and wildfires. Repairing and upgrading this infrastructure often requires substantial investment.
As a result, utilities are increasing electricity rates in response to wildfire and hurricane events to fund infrastructure repairs and future mitigation efforts. (1) The average cumulative increase in per-household electricity expenditures due to climate-related price changes is approximately $30. (1)
While this increase may appear modest today, utility costs are expected to rise further as climate-related infrastructure damage becomes more frequent and severe.
How Climate Disasters Increase Government Spending and Taxes
Extreme weather events also damage public infrastructure, including roads, schools, bridges, airports, water systems, and emergency services infrastructure. Recovery and rebuilding costs are often funded through taxpayer dollars at the federal, state, and local levels.
The average annual government cost tied to climate-related disaster recovery is estimated at nearly $142 per household. (1) States that frequently experience hurricanes, wildfires, tornadoes, or flooding can face even higher public recovery costs.
These expenses affect taxpayers whether they personally experience a disaster or not. Climate-related recovery spending can increase pressure on public budgets, emergency management systems, and infrastructure funding nationwide.
Reducing Climate Costs Through Climate Action
While this article focuses on the growing financial costs associated with climate change, the issue is not only about money for many people. It is also about recognizing our environmental impact and taking responsibility for reducing it in order to help preserve a healthy planet for future generations.
While individuals alone cannot solve climate change, collective action can help reduce future climate adaptation costs over time.
For those interested in taking action, there are three important steps:
- Estimate your carbon footprint to better understand the emissions connected to your lifestyle and activities.
- Create a plan to gradually reduce emissions through energy efficiency, cleaner technologies, and more sustainable choices.
- Address remaining emissions by supporting verified carbon reduction projects through carbon credits.
Carbon credits are one of the most cost-effective tools available for climate action because they help fund projects that generate verified emission reductions at scale. Supporting global emission reduction efforts can help reduce the long-term impacts and costs associated with climate change.
Visit Terrapass to learn more about carbon footprints, carbon credits, and climate action solutions.
The post How Climate Change Is Raising the Cost of Living appeared first on Terrapass.
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