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
Climate-Linked Supply Chain Risk Is Already in Your P&L
The earnings calls that quietly reframed climate from sustainability question to operating risk.
Three earnings calls in the last 18 months tell the story without any help from a press release.
Hershey, May 2024: cocoa price exposure compresses margin, and the company attributes part of the cost shock to West African weather. Olam, July 2024: coffee climate exposure quantified in the annual report. JBS, January 2025: supply chain climate disclosures expanded materially in response to investor pressure and regulatory expectation. None of these companies issued the announcement as climate news. They issued it as financial news. The climate-linked supply chain risk did not arrive with a sustainability framing; it arrived as a P&L line.
You are probably reading this article because you suspect the same thing is happening to your business. This piece walks through what is showing up on which earnings calls, how procurement and finance leaders are quantifying the exposure, and what serious corporates are doing about it before the regulator asks.
Where climate risk has already appeared in earnings
The pattern is consistent across resource-intensive sectors. A weather event compresses supply, the price spikes, the cost flows through the income statement, and the analyst on the call asks whether the event is anomalous or structural. Increasingly, the honest answer is the second one.
Cocoa is the cleanest example. The 2023 to 2024 West African harvest fell sharply on the back of erratic rainfall and disease. Cocoa futures more than tripled. Companies with concentrated West African sourcing absorbed the cost; companies with diversified sourcing absorbed less. The exposure was not climate as ESG topic. It was climate as cost of goods.
Coffee follows the same pattern. Brazilian and Vietnamese harvests have moved on weather more sharply across the last several seasons. Roasters with long-tenor supplier relationships and origin diversification have managed the volatility; roasters with spot-market exposure have not. Wheat, sugar, palm oil, beef: the same dynamic in different commodities, a pattern the IPCC AR6 Working Group II report projects will intensify across agricultural systems through mid-century.
What this means: climate risk is no longer a footnote in the 10-K. It is a line item the CFO has to explain on the call.
The three commodity exposures that hit margin first
For most companies with material Scope 3 exposure, three exposures dominate the near-term P&L risk.
- Concentrated single-origin sourcing in a climate-vulnerable region. If your tier-one supply for any material commodity sits in one geography, you have a concentration risk that climate amplifies. Diversification across origins is the obvious hedge, but it takes years to build and requires relationships you cannot acquire by tender.
- Supplier financial fragility under climate stress. Smallholder farmers, who supply a large share of the global cocoa, coffee, and palm oil market, do not carry the balance sheets to absorb yield shocks. When yields collapse, they exit. When they exit, your supply base shrinks, and the surviving suppliers raise prices. The risk is structural, not cyclical.
- Logistics and storage exposure to extreme weather. Hurricane disruptions to Gulf shipping, drought-driven Panama Canal restrictions, flooding in European inland waterways: each of these has moved input costs in the last three years, a pattern documented in Munich Re’s natural catastrophe data. The exposure shows up as a one-quarter event in the financial press but accumulates over time on the cost line.
TCFD and ISSB disclosure changes
The disclosure architecture has now caught up with the risk. The Task Force on Climate-related Financial Disclosures, whose recommendations are now embedded in the ISSB’s IFRS S2 climate standard, requires companies to disclose climate-related risks across physical and transition categories, with quantification where possible.
For physical risk specifically (the climate-linked supply chain risk you are reading about), the disclosure must address both acute exposures (extreme weather events) and chronic exposures (gradual changes in temperature, precipitation, and growing seasons). The disclosure must address the time horizon over which the risk is material, the parts of the value chain exposed, and the financial impact under different scenarios.
The CSRD imposes similar requirements under European law, with double materiality (both financial and impact materiality) embedded in the assessment. The practical effect: your auditors and your investor relations team now need a defensible answer to the climate-linked supply chain risk question, and the answer needs to be quantified.
What procurement and finance can do now
Three actions matter near-term.
Map your exposure. Most companies do not have a clear view of which tier-one and tier-two suppliers sit in which climate-vulnerable geographies. Without the map, you cannot quantify the risk, and without the quantification, you cannot disclose it credibly. The map is the foundation, and World Resources Institute climate risk research provides useful public tooling to start.
Diversify and deepen, in that order. Diversification across origins reduces concentration risk, but the deeper move is to invest in the resilience of the suppliers you already have. Regenerative practices, agroforestry, soil health interventions: these reduce yield volatility under climate stress and protect your input cost trajectory.
Embed the climate spend inside procurement, not outside it. Treating climate risk as a sustainability cost line subordinates it to the ESG budget. Treating it as a procurement and resilience investment puts it in the budget that matters, which is the cost-of-goods budget that the CFO defends quarterly.
Nature-based supply chain investments are the asset class designed for exactly this purpose. They sit inside the value chain, they reduce climate-linked supply risk, they generate verifiable Scope 3 reductions, and they produce the documentation an auditor and a regulator can both test.
If you are quantifying climate-linked supply chain risk in advance of the next earnings cycle or the next disclosure period, the carbon and sustainability experts at Carbon Credit Capital can help you map your exposure and structure a Dual-Value Model response that addresses reduction, resilience, and disclosure-readiness in a single program. Schedule a consultation.
Carbon Footprint
Where should an SME start with a carbon action plan?
More and more small and medium-sized businesses are hearing the same question from their larger customers: What is your carbon footprint? That question now travels down entire supply chains, and it arrives next to tender requirements, certification criteria, and rising customer expectations.
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Carbon Footprint
Insetting vs Offsetting: Which Actually Counts Toward Your Scope 3 Targets
The accounting differences that decide whether your nature investment shows up in inventory, in BVCM, or nowhere at all.
The question reaches a procurement team about three weeks before the next sustainability committee meeting. Someone has read about insetting. Someone else has just signed off on an offset purchase. The CSO wants to know if the two are interchangeable. The answer is no, and the GHG Protocol Land Sector and Removals Standard is the reason why.
This article walks through what each term means at audit-grade specificity, what the standards actually say about how each gets counted, and how to decide which tool fits which target. The insetting vs offsetting question is one of the most-searched in corporate climate strategy, and one of the most poorly answered. By the end of this piece, you should be able to brief a committee on the difference without notes.
The two definitions, in plain English
Offsetting means buying carbon credits generated outside your value chain and retiring them against your residual emissions. The reduction happens somewhere else, financed by you, and the credit is the receipt.
Insetting means investing in emission reductions or removals inside your own value chain, typically with suppliers, where the reduction is directly linked to the products and services you buy. The reduction happens inside the boundary of your Scope 3 inventory, and the accounting treatment is fundamentally different.
The shorthand from the University of Oxford’s Nature-based Insetting Initiative is useful: insetting is what you do with the supply chain you have; offsetting is what you do with the supply chain you do not have.
What the GHG Protocol Land Sector Standard actually says
The GHG Protocol Land Sector and Removals Standard, finalised in 2024 after a multi-year pilot, sets the rules for how land-based emission reductions and removals enter corporate inventories. The Standard distinguishes between inventory accounting (Scope 1, 2, and 3) and project or intervention accounting (a separate methodology for crediting).
For insetting, the practical implication is that supplier-level interventions, when properly measured and attributed, can reduce your Scope 3 category 1 (purchased goods and services) emissions in your inventory. The reduction is not a credit retired against the inventory; it is a lower inventory number, period.
For offsetting, the credit is retired separately. It can be reported as a contribution toward a net-zero claim under the SBTi Beyond Value Chain Mitigation framework or as part of a VCMI Carbon Integrity claim, but it does not lower the inventory number.
A practical consequence: if your Science Based Target requires a 50% absolute reduction in Scope 3 emissions by 2030, insetting moves you toward the target. Offsetting does not. This single point of difference reshapes the procurement decision.
When insetting counts toward Scope 3 (and when it does not)
Insetting counts toward Scope 3 only when several conditions are met:
- The intervention must occur with an entity in your value chain.
- The emissions reduction or removal must be measured against a defensible baseline.
- The reduction must be attributed to your share of that supplier’s output, not double-counted with other buyers.
- It must follow the inventory accounting rules in the GHG Protocol Land Sector Standard, not the project accounting rules used to generate credits.
The most common failure mode is double counting. If your supplier sells the same reduction as a credit on the voluntary market and also reports it to you as a Scope 3 reduction, the math breaks. The Standard requires you to address this risk, typically by purchasing and retiring the supplier-issued credit as part of your inventory or by contractual provisions that prevent the supplier from selling the reduction twice.
When insetting does not count toward Scope 3: when the intervention sits with a supplier you do not buy from, when the baseline is not defensible, when the attribution is unclear, or when the documentation does not survive audit. Those cases default to Beyond Value Chain Mitigation, which is still useful but operates on a different ledger.
The procurement and supplier engagement question
Insetting is harder than offsetting. That is the unfashionable truth most buyers eventually confront. Offsetting is a transaction; insetting is a relationship.
To run an insetting program, you need supplier mapping precise enough to know which farms or facilities sit at which Scope 3 boundary. You need an engagement model that gets suppliers to participate, which usually requires multi-year commitments and shared economics. You need an MRV architecture that measures the right things and produces audit-ready documentation. And you need a contractual structure that prevents double counting and protects both sides.
The trade-off you receive in return is significant. Reductions count against your inventory rather than your residual. Supplier relationships deepen, which protects sourcing continuity. Yield and quality improvements often follow regenerative interventions, which reduces your input cost over time. And the regulatory file, under CSRD, CSDDD, EUDR, and the SBTi FLAG Guidance, is materially stronger.
Choosing the right tool for the right target
A practical decision rule. If your target is a science-based Scope 3 reduction and you operate in a FLAG sector or source FLAG commodities, insetting is the structurally correct tool. If your target is a net-zero claim that includes neutralising hard-to-abate residual emissions outside your value chain, BVCM via high-integrity offsets is the structurally correct tool. Most companies with material Scope 3 exposure need both, in different proportions, sequenced over time.
The sequencing matters. Insetting takes longer to stand up but produces a permanent reduction in the inventory. Offsetting can be transacted faster but does not change the inventory and now sits under tighter claim restrictions. Treat them as complementary tools with different jobs, not as substitutes. The Accountability Framework Initiative and the IUCN Global Standard for Nature-based Solutions both provide useful guardrails for the insetting side, with biodiversity, human rights, and benefit-sharing requirements that go beyond carbon math.
If you are mapping a Scope 3 reduction roadmap and need to scope which interventions count toward your inventory versus which sit in Beyond Value Chain Mitigation, the carbon and sustainability experts at Carbon Credit Capital can help you structure a nature-based supply chain investment program that fits your FLAG exposure, your target architecture, and your audit horizon. Schedule a consultation.
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