Britain's Electricity Generation - Annual Review

Fuel Type Breakdown Britain’s electricity generation in December 2025 was once again led by wind, which supplied 38% of the energy mix. While slightly below the 39% recorded in December 2024 and the 41% peak in December 2023, wind maintained its dominant position and continued to outperform all other generation sources. Wind generation exceeded gas output by 13 percentage points, underlining its central role in Britain’s winter electricity supply. Gas accounted for 25% of electricity generation in December 2025, its lowest December share in the past five years, and 13 percentage points below December 2021. This continued decline highlights sustained progress in reducing reliance on fossil fuels, particularly during peak winter demand. Electricity imports rose to 15% of the generation mix, the highest December share over the past five years and up 5 percentage points year-on-year. This increase reflects growing reliance on cross-border electricity flows to support domestic supply during periods of high demand. Nuclear power contributed 10% to the mix, its lowest December contribution in the past five years and 6 percentage points below both December 2021 & 2022, continuing a multi-year trend of reduced nuclear availability. Solar generation delivered 2% of electricity, the highest December contribution in the past five years, though still modest given seasonal conditions. Storage technologies supplied 2% of the mix, doubling their contribution compared to previous Decembers and marking the strongest December performance to date. This growth highlights ongoing improvements in grid flexibility and battery capacity. Biomass generation accounted for 7%, up from 6% in December 2024, while hydropower remained steady at 3%, consistent with the past three Decembers. Coal remained absent from the generation mix, reinforcing Britain’s continued phase-out of coal-fired power. Zero-Carbon Sources & Carbon Intensity Zero-carbon sources, including wind, solar, nuclear, and hydro, supplied 67% of Britain’s electricity in December 2025. This represents the highest December share in the past five years and an 11 percentage point increase compared to December 2024. Carbon intensity fell further to 120 gCO₂/kWh, improving on December 2024’s 126 gCO₂/kWh and marking the lowest December level across the five-year period. This reduction reflects the combined impact of strong wind generation, increased storage deployment, and reduced gas usage. On a rolling 12-month basis, carbon intensity stood at 129 gCO₂/kWh, slightly higher than the previous year’s rolling average but still significantly lower than levels seen earlier in the decade. Meanwhile, the rolling 12-month average for zero-carbon generation increased to 56%, highlighting continued long-term progress in decarbonising Britain’s electricity system. Concluding Remarks December 2025 capped off a strong year for Britain’s electricity transition. Wind remained the backbone of the generation mix, and the zero-carbon share climbed to a record December high of 67%. These developments helped drive carbon intensity to its lowest December level in five years. However, the continued decline in nuclear output and a sharp rise in electricity imports underline ongoing structural challenges. To maintain momentum toward net zero and strengthen energy security, sustained investment in domestic clean generation, nuclear capacity, and flexible technologies will remain essential as Britain enters the next phase of its energy transition. Britain's Electricity Summary Charts

edenseven are following trends in the renewable energy sector closely, as decarbonising the energy sector is vital for ensuring a sustainable future and achieving Net Zero. Considering the recent DESNZ quarterly update of the renewable energy planning database, we have produced a consolidated summary of projects in the United Kingdom that have received planning permission. We will continue to release updates each quarter. Key Insights: In the 12 months to the end of Q3 2025, the UK approved 710 solar PV projects, up 6% year on year and the second-highest 12-month total ending Q3. These approvals will deliver a record 5,448 MW of solar capacity. Offshore wind approvals doubled to 8 projects, set to deliver a record 9,900 MW. Meanwhile, onshore wind approvals fell to 42 projects, though total capacity rose to 1,039 MW, driven by larger average project sizes.

Fuel Type Breakdown Britain's electricity generation in November 2025 was led by wind, which contributed 37% of the energy mix. This represents the highest November share in the past five years, up 10 percentage points compared to November 2024. Wind also outpaced gas generation by 10 percentage points, reinforcing its role as the dominant power source. Gas supplied 27% of electricity in November 2025, marking its lowest November contribution over the last five years. This decline underscores ongoing progress in reducing reliance on fossil fuels and highlights the shifting balance towards renewable energy. Electricity imports accounted for 11% of the generation mix, unchanged from November 2024 but slightly below the 12% seen in November 2023. This continued reliance on cross-border electricity reflects the need to balance intermittent domestic supply. Nuclear power contributed 10% of the mix, down from 12% in both November 2023 and November 2024, and 6% below the level seen in November 2021, continuing a trend of reduced nuclear availability. Solar generation provided 2% of Britain’s electricity, down from 4% in November 2024, but largely consistent with the previous years, indicating stable, though modest, contributions from solar during autumn. Storage technologies supplied 2% of the mix, up 1 percentage point compared to November 2024, marking the highest November contribution in the past five years. This increase signals improvements in grid flexibility and battery deployment. Biomass contributed 8%, up slightly from 7% in November 2024, while hydropower remained steady at 2%, consistent with levels over the previous five years. Coal remained absent from the generation mix, continuing Britain’s phasing out of coal-fired power. Zero-Carbon Sources & Carbon Intensity Zero-carbon sources, including wind, solar, nuclear and hydro, delivered 66% of Britain’s electricity in November 2025, the highest November share in the past five years and a significant 24 percentage points higher than November 2024. Carbon intensity fell sharply to 126 gCO₂/kWh in November 2025, a marked reduction compared to 171 gCO₂/kWh in November 2024 and the lowest November level in the past five years. On a rolling 12-month basis, carbon intensity remained low at 129 gCO₂/kWh, slightly higher than the previous period but still reflecting the impact of increased renewable generation. The rolling 12-month average for zero-carbon generation is 55%, 4% higher than the previous 12-month period, highlighting steady long-term growth in low-carbon electricity sources. Concluding Remarks November 2025 was a strong month for Britain’s electricity transition. Wind delivered record November output, storage continued to support grid flexibility, and the zero-carbon share reached an all-time November high of 66%. Carbon intensity dropped to its lowest November level in five years, underlining the tangible benefits of renewables and flexible technologies. Despite these gains, nuclear output remained lower than in previous years, and imports continued to play a role in balancing supply. To sustain momentum towards net zero, ongoing investment in domestic clean energy generation, storage, and flexible grid technologies remains essential. Britain's Electricity Summary Charts

Fuel Type Breakdown Britain's electricity generation in October 2025 was led by wind, which contributed 34% of the energy mix, matching its share from October 2023 but below the 36% recorded in October 2022. This represented a 3 percentage point increase compared to October 2024 and outpaced gas generation by 5 percentage points, reinforcing wind's position as a leading power source. Gas, meanwhile, supplied 29% of electricity in October 2025, marking its second-lowest October contribution in the past five years. This decline highlights ongoing progress in reducing reliance on fossil fuels. Electricity imports accounted for 14% of Britain's generation mix, up 3 percentage points compared to October 2024 and the highest October share in the past five years. This sustained level reflects continued dependence on cross-border electricity flows to balance domestic supply. Nuclear power contributed 10% to the mix, down from 13% in October 2024 and below the 14% seen in 2021, 2022 & 2023. This marks a continued period of reduced nuclear availability. Solar generation delivered 3% of Britain's electricity in October 2025, consistent with October 2023 and October 2021 but 1 percentage point lower than in October 2024 and October 2022. Storage technologies supplied 2% of the mix, up 1 percentage point year-on-year and the highest October contribution in the past five years, signalling ongoing improvements in grid flexibility and battery capacity. Biomass contributed 6% to the mix, 2 percentage points lower than in October 2024. Hydropower remained steady at 2%, largely consistent with October levels across the previous five years. Coal remained absent from the generation mix, continuing Britain's phase-out of coal-fired power. Zero-Carbon Sources & Carbon Intensity Zero-carbon sources, including wind, solar, nuclear, and hydro, delivered 61% of Britain's electricity in October 2025, the highest October share of the previous five years and 10 percentage points higher than in October last year. Carbon intensity for October 2025 remained static compared to October in the previous two years at 138 gCO₂/kWh. This stagnation suggests that more effort is needed to decarbonise Britain's electricity to ensure continued progress towards net zero. Over the longer term, the 12-month rolling average for zero-carbon generation increased by 1% over the previous 12-month period, to 53%. In contrast, the rolling average carbon intensity rose by 8% to 133 gCO₂/kWh compared with the previous 12 months, signalling the importance of accelerating clean energy deployment to sustain downward momentum. Concluding Remarks October 2025 marked a relatively good month for Britain's renewable generation, with wind maintaining its position as the leading power source, though falling short of the 36% achieved in October 2022. Together with growing storage capacity, these sources helped sustain low carbon intensity levels. However, the decline in nuclear generation and continued reliance on imports highlight the need for further investment in domestic clean energy infrastructure and flexible technologies. While progress in storage and renewable deployment is evident, maintaining long-term momentum will be essential to achieving sustained reductions in carbon intensity towards net zero and strengthening Britain's energy resilience. Britain's Electricity Summary Charts

PRESS RELEASE FOR IMMEDIATE RELEASE 20th November 2025 UK Corporate Accountability Exposed as Climate Commitments Fail to Deliver New Report Reveals FTSE250 Generates 37% of Global Aviation’s Carbon Footprint

Even as wholesale electricity prices stabilise, a new wave of cost pressure is hitting UK businesses, and it is not coming from the energy market itself. Over half of a typical business’ electricity bill now comes from non-commodity charges; these sources include the grid, balancing, policy, and standing costs that fund the UK’s transition to a net-zero energy system. These charges are rising sharply as the country races to reinforce an aging network, integrate renewables, and finance new nuclear capacity. At a recent UK Energy Select Committee session (October 2025), EDF’s CEO Simone Rossi warned MPs that “business electricity bills could rise by 20% over the next four years, even if wholesale prices were cut in half.” In other words: even if markets calm, your costs won’t. In this Insight Article, we will explain why non-commodity costs are now the biggest driver of business electricity spend; what to expect over the next decade; and, most importantly, how your organisation can prepare, mitigate, and even turn these trends into strategic advantage. The New Cost Reality: Where the Increases are Coming From Non-commodity costs (the portion of your bill that is not the electricity itself) include transmission and distribution network charges (TNUoS, DUoS), balancing and system costs (BSUoS), and policy levies such as Contracts for Difference (CfD) of the new nuclear RAB levy. Each of these costs is rising for different reasons (largely due to continued under-investment by successive UK governments over the past three decades) but together they form a powerful incline. Transmission (TNUoS): The Big Jump Starts 2025 Network investment to reinforce the grid is driving a near-doubling of fixed residual transmission charges, from £3.8bn in 2025/26 to around £7.5bn in 2026/27. These costs are passed on as fixed standing charges, which will vary by region. For multi-site operators, regional differentials could become material line-items in budgets. Balancing & System Costs (BSUoS): The Renewables Paradox With more renewable generation and a still-constrained grid, balancing costs keep climbing. Even as low-carbon energy expands, system flexibility lags behind, meaning higher costs for managing intermittency. Until storage, demand response, and grid reinforcements catch up, BSUoS will remain volatile and elevated. Distribution (DUoS): Rising with Electrification Distribution costs are increasing as networks upgrade for EVs, heat pumps, and industrial electrification. The trend is toward more fixed and capacity-based recovery rather than pure per-kWh charges, shifting cost exposure toward your site configuration and load profile. Policy Levies: New & Persistent Nuclear RAB Levy: Starting in late 2025, to fund new nuclear generation capacity at Sizewell C, the Nuclear RAB Levy will add a new cost line for all consumers. Contracts for Difference (CfD): This works counter-cyclically – when wholesale prices drop, supplier payments rise. Legacy Schemes (RO, FiT): This will continue to weigh on bills for non-EII (Energy Intensive Industries) customers (those not exempt as Energy-Intensive Industries). Standing Charges: The Silent Budget Killer Many large businesses now face daily standing charge increases of £30 or more per site. Because these are fixed costs, even highly efficient or low-usage sites will see higher total bills. “Large energy users in Britain are set to face a sharp rise in non-commodity costs – adding up to £450,000 to annual bills.” (Energy Advice Hub, 24 September 2025) The key takeaway from this: energy efficiency alone will no longer guarantee lower bills. Why This Matters for Budgets and Procurement Even if your kWh consumption falls, your electricity spending may not. This is because the proportion is fixed and policy-linked costs are increasing, while variable commodity exposure is shrinking. For most corporate customers: Standard contracts won’t protect you: Non-commodity costs are typically ‘pass-through’, meaning that suppliers charge the full amount, without mark-up and without caps. Standing charges per site: This means that portfolio design now matters, and reducing the number of metered sites or rationalising MPANs could directly cut costs. Cost allocation is changing: More fixed/capacity components mean that your load profile, peak demand, and location matter more than total consumption. In summary, you can no longer treat non-commodity costs as a small add-on; they are now central to your cost-risk model. The 5-10 Year Outlook: What to Budget For Transmission Charges (TNUoS) Trend: Sharp increase through 2026-2030, possibly stabilising later. Budget Impact: Expect near-doubling of fixed charges by 2026/27. Model per-site costs and review regional variations. Action: Rationalise sites/meters where possible. Build future transmission uplifts into capital investment models. Balancing & Constraint Costs (BSUoS) Trend: Elevated and volatile through late 2020s. Budget Impact: Hard to forecast; risk of doubling under constrained grid conditions. Action: Stress-test budgets for BSUoS volatility. Invest in behind-the-meter storage, DSR participation, or flexible load management. Distribution (DUoS) Trend: Gradual but steady rise, with capacity-based recovery increasing. Budget Impact: High electrification zones face the largest uplifts. Action: Review your demand profile and capacity agreements. Engage DNOs early for expansions or new connections. Incorporate DUoS scenarios into financial planning. Policy Levies (CfD, RAB, RO, FiT) Trend: New levies (nuclear RAB) plus counter-cyclical CfD exposure. Budget Impact: More unpredictable costs when wholesale prices fall. Action: Include a new nuclear levy line from Q4 2025. Review exemption eligibility (EII or partial relief). Ensure supplier contracts clarify treatments of all levies. Standing and Fixed Charges Trend: Material increase across all non-domestic users. Budget Impact: Small or under-utilised sites become disproportionately expensive. Action: Review metering arrangements and site count. Explore aggregation or consolidation opportunities. Lock in or negotiate visibility on fixed charges before April 2026 reforms. The Political Landscape: What to Expect Political policy directly shapes the non-commodity cost-trajectory. With Labour in power until at least 2029, expect: Strong backing for grid expansion: The largest push for grid expansion since the 1960s, driving higher TNUoS, DUoS, and BSUoS. (Financial Times, 2025) New nuclear RAB levy introduction (Sizewell C): This has been confirmed for late 2025. (Reuters) Supplier requirement for lower standing charge tariffs by 2026: However, there is limited impact expected for commercial users. (Reuters) Rejection of zonal wholesale pricing: Instead, we will maintain national uniform pricing on fairness grounds. In summary, government investment and policy stability support decarbonisation, but also raise non-commodity costs for all consumers. What Businesses Should Do Now As non-commodity costs rise faster than energy prices fall, proactive action is essential. The following five steps can protect budgets, improve cost visibility, and strengthen your energy strategy. 1. Update Your Budget Models, Now Include explicit non-commodity line-items, not just unit price assumptions. Model scenarios such as: Standing charges increase of up to +20% Transmission cost uplifts approaching +90% from 2026 Policy levy uplift if wholesale prices halve Build these into 5-10 year energy and sustainability budgets, especially if your next contract ends beyond 2026. 2. Review Procurement Structures Most supply contracts pass through non-commodity charges without limits or caps. Check whether your contract treats non-commodity costs as pass-through or fixed. Request transparent breakdowns of TNUoS, DUoS, BSUoS, and levy components. For renewals due in 2026 and beyond, consider early tendering before major uplifts. Where possible, explore supplier options offering caps or collars on non-commodity exposure. 3. Rationalise Your Metering and Site Portfolio Every MPAN carries a standing charge – which are on the increase. Review site counts and identify opportunities for consolidation or aggregation. Assess whether smaller or seasonal sites justify their metering costs. Align portfolio design with operational strategy to avoid paying for under-utilised capacity. 4. Leverage Operational Flexibility Turn flexibility into a financial asset: Shift loads away from peak periods. Integrate energy storage or participate in Demand Site Response (DSR) programs. Deploy behind-the-meter storage or generation to buffer against volatility. Integrate non-commodity exposure into all new EV, heat pump, or electrification projects. 5. Check Exemptions and Embedded Opportunities If your business is classed as an Energy-Intensive Industry (EII) or a major exporter, explore levy reliefs and exemptions. Even non-EII companies can capture value through: On-site generation or storage participation. Embedded benefits and local grid services revenue. Supplier-linked optimisation programs. Aligning Cost Management with Sustainability Strategy Rising non-commodity costs are not just a financial challenge, they are also a sustainability signal. Grid and policy charges are increasing because of the UK’s transition to a net zero energy system; building new transmission lines, integrating renewables, and funding nuclear capacity all support decarbonisation. So, rather than treating these as ‘unavoidable penalties’, businesses can view them as part of the cost of progress and respond strategically. Aligning financial planning with sustainability can turn this pressure into advantage: Invest in self-generation: Invest in resources such as solar, wind, and CHP in order to reduce imported kWh exposure. Adopt flexible demand: Design strategies which earn grid services revenue. Engage in corporate PPAs: Utilise PPA which stabilise long-term energy and levy exposure. Report transparently: Transparent reporting on energy cost drivers in ESG disclosures demonstrates proactive risk management and alignment with net zero transition. Those who benefit the most here will be those who leverage flexibility, technology, and foresight in order to manage these non-commodity costs, not just absorb them. Final Word: The New Normal for Business Energy Non-commodity electricity costs are no longer background noise, they are the main story. Over the next decade, they will determine whether your site, process, or product line remains economically competitive. Key trends to remember are: Transmission and distribution costs are set to rise sharply from 2026. Balancing and constraint charges remain volatile. New levies, like the nuclear RAB, add structural costs. Standing charges keep climbing, even if you cut consumption. Political commitment to grid expansion means costs will stay elevated through at least 2023. It is essential to act now . Model and budget for uplifts, renegotiate contracts with transparency, invest in flexibility, and align sustainability with cost management. Adapting fast doesn’t just ensure resilience against the next energy cost wave, it also allows you to turn it into a competitive advantage. At edenseven, we recognise the genuine concern across all sectors of the market relating to the significant increase in electrical non-commodity charges. We are here to support your business to model these charge increases, support forward budgeting, and develop mitigation strategies based on your specific situation. Please get in contact with us at edenseven.co.uk or any of our team if you need support. Contact edenseven: phone: +44 1223 750335 email: info@edenseven.co.uk

Why the Natural World Belongs in Every Sustainability Strategy Nature means something different to everyone. For some, it is a dog-walk through the park; for others, it is hiking misty mountains in Scotland, swimming in turquoise waters, or exploring tropical forests in Costa Rica. Whatever image comes to mind, the truth remains the same: we all depend on nature for a sense of clarity, consistency, and stability. Nature provides us with clean air, fresh water, food, and moments of calm in an increasingly busy world. Its positive impact on our mental health is well documented; yet, while most of us recognise its value, we often struggle to understand how to support it, or how to bring more of it into our daily lives. Rediscovering Nature During the Pandemic Despite, and perhaps because of, their emphasis on isolation, the COVID-19 lockdowns reminded many of us just how vital being outside and being around nature are. That single hour of permitted outdoor exercise became a lifeline, a way to unwind, reset, and reconnect with others and ourselves. A 2023 report by Jonathan Kingsley et al. found that gardening played a key role in moderating stress and improving mood during the pandemic. Those with access to a garden reported significantly higher life satisfaction and mental wellbeing than those without. This experience underlined a powerful truth: access to nature should not be a luxury, it is essential for human health and happiness. The State of Nature in the UK When we think of nature in the UK, we might picture rolling countryside, rivers, and ancient forests. But beneath that green surface lies a concerning reality: the UK is one of the most nature-depleted countries on Earth (according to the UN). Ancient woodland, i.e. forests that have existed since pre-1600AD in England and Wales (1750AD in Scotland), now make up just 2.5% of the UK’s land area. These woodlands host incredibly diverse ecosystems in which plants, animals, and microorganisms coexist in balance. When disrupted, through deforestation, culling, or chemical use, these systems become fragile and fragmented. Monoculture such as dense pine plantations, for example, may appear lush but support only a fraction of the biodiversity found in ancient woodland, leaving them vulnerable to disease and collapse. The UK once hosted brown bears, wolves, lynx, moose, and beavers. While some, like the beaver, are being cautiously reintroduced, broader rewilding debates continue. What united both sides, however, is a shared recognition of the urgent need to protect and restore nature in the UK. One major policy proposal aiming to do just that is the Climate and Nature Bill (CAN Bill), a landmark piece of UK legislation designed to tackle both the climate crisis and the nature crisis together. The Bill calls on the Government to: The Bill calls on the government to: Set legally binding targets to reduce the UK’s greenhouse gas emissions in line with the latest science (limit warming to 1.5°C). Restore nature , halting and reversing UK biodiversity loss by 2030, by setting and implementing a legally-binding roadmap. Involving the public , through a Climate and Nature Assembly that ensures public participation in shaping solutions. The proposed CAN Bill is gaining widespread support from the public and over 1,500 organisations, seeking to tackle this crisis head-on, aligning efforts to address both the climate and biodiversity emergencies. A Global Challenge The challenge extends far beyond the UK. The UN warns that over one million species worldwide are now at risk of extinction due to human activity. This loss doesn’t just affect wildlife and being able to show future generations elephants and rhinos, it threatens the very systems that sustain us: our food, water, and health. Over the past 150 years, land use has changed dramatically. With the global population more than quadrupling, human activity now dominates 75% of the planet’s usable land. The regenerative capacity of Earth’s ecosystems is in rapid decline. If we are to secure our future, regenerating the natural world is no longer optional; it is essential. Why Nature Belongs in Corporate Sustainability Despite its fundamental role, nature remains one of the most overlooked elements in corporate sustainability strategies, with the focus of many of these relating to another important aspect: greenhouse gas emissions. While this is a great start, and a fundamental issue, it must be combined with a nature strategy to ensure both the climate and biodiversity crises are tackled together. While frameworks like the Taskforce on Nature-related Financial Disclosures (TNFD) and the Science Based Targets Network (SBTN), nature-based target pilot schemes, have begun to offer guidance, many organisations still lack direction. As a result, we’re seeing a growing voluntary market for corporate nature investment, from tree planting and habitat restoration to animal welfare initiatives. Yet these efforts remain fragmented and underpowered relative to the scale of the challenge. The UK Government’s Nature Recovery Network (NRN) aims to change this by moving from protection to restoration. Its goals include but are not limited to: Protecting and managing 30% of England’s land and sea for nature by 2030 Halting species decline by 2030 and increasing species abundance by at least 10%, to exceed 2022 levels by 2042 Restoring or creating 500,000 hectares of wildlife-rich habitat outside protected sites by 2042 Improving 75% of protected sites to favourable condition by 2042 Increasing tree canopy cover to 16.5% by 2050 Improving access to nature, working across government to ensure that everyone lives within 15 minutes’ walk of a green or blue space These efforts are directly linked to achieving net zero by 2050, improving air quality, and supporting public wellbeing, outcomes that businesses can and should help accelerate. The Business Case for Nature Investing in nature isn’t just good ethics; it’s good business. Productivity and wellbeing: Studies show that employees with access to green spaces are happier, healthier, and more productive. Even having indoor plants or a green view can reduce stress, improve focus, and lower absenteeism. Customer and employee loyalty: Millennials and Gen Z, now the largest segments of the workforce and consumer base, increasingly expect companies to demonstrate environmental responsibility. Businesses wanting to attract and retain talent must act. Innovation and risk management: Nature-positive strategies often drive innovation, improve resilience, and ensure long-term regulatory compliance. Brand reputation and access to capital: Investors and consumers alike are rewarding businesses that take meaningful action on biodiversity. In short, what’s good for nature is good for business, and essential for long-term resilience. From Biodiversity Net Gain to Business Transformation Certain sectors are already leading the way. In construction, the concept of Biodiversity Net Gain (BNG) ensures that new developments deliver measurable improvements in biodiversity compared to pre-development levels. Through features such as green roofs, community gardens, wildlife corridors, and sustainable drainage systems, developers are proving that commercial success and ecological restoration can go hand in hand. A great example is Coutts Bank in Central London, which has transformed its rooftop into a thriving urban garden. The space now produces an impressive variety of fruits and vegetables, including wasabi, Sichuan peppers, iceberg lettuce, guavas, berries, and even honey from on-site beehives. This initiative highlights how even the most densely built urban environments can integrate green infrastructure, enhancing biodiversity, improving air quality, and contributing to local food resilience and community wellbeing. The question now is: how do we extend this mindset across all industries? By embedding nature into corporate strategies, from supply chains to employee wellbeing, businesses can help regenerate ecosystems while building stronger, more sustainable organisations. A Call to Action Nature is not an externality or something that can remain as a nice-to-have; it is the foundation of our economy, our health, and our future. By embracing nature as a core component of sustainability strategy, UK businesses can play a pivotal role in restoring biodiversity, supporting the Nature Recovery Network, and building a more resilient future for all. Reflecting on World Mental Health Day last month, there’s no better time than now to take action, to integrate nature not only within our businesses but also into our daily lives. With autumn upon us, why not set aside a moment this week to step outside and truly reconnect with the natural world? Notice the vibrant colours of the turning leaves, listen to the gentle rustle as they fall, feel the cool breeze on your skin, and breathe in the rich, earthy scent of the damp ground. Be present in that moment, and you’ll soon feel the restorative power that nature so freely offers. If you’d like to help drive systemic change, write to your local MP to support the Climate and Nature Bill, and learn more at www.zerohour.uk. Parliament is next scheduled to discuss the CAN Bill on Friday 29th May 2026. It's Time for Businesses to Lead When developing or reviewing your ESG or sustainability strategy, supporting nature restoration and stewardship must be part of the plan. Nature underpins environmental performance, enhances social value through community engagement, and improves staff health and wellbeing, all of which are core pillars of a credible and future-proof ESG strategy. At edenseven, we support organisations in integrating nature into their strategy in meaningful, measurable ways, from nature-positive initiatives and biodiversity planning to partnering with local community groups and improving employee wellbeing through access to green spaces. Want to learn how to integrate nature into your business, be part of the change, and reap the benefits discussed above? Get in touch with edenseven today, and let’s build a future where business and nature thrive together. Contact edenseven: phone: +44 1223 750335 email: info@edenseven.co.uk

edenseven are following trends in the renewable energy sector closely, as decarbonising the energy sector is vital for ensuring a sustainable future and achieving Net Zero. Considering the recent DESNZ quarterly update of the renewable energy planning database, we have produced a consolidated summary of projects in the United Kingdom that have received planning permission. We will continue to release updates each quarter. Key Insights: Solar photovoltaic (PV) is scaling rapidly, driven by falling costs and strong investor appetite. In the last 12-months (ending Q2), 662 projects were approved, the third-highest 12-month period ending Q2 in 16 years, representing a record 4,831 MW of new capacity, with an average project size of 7 MW. Offshore wind, meanwhile, continues to demonstrate a mature, large-scale market with fewer but much larger developments. Six projects were approved in the last 12-months (ending Q2), also the joint third-highest year on record, delivering a record 6,803 MW of capacity and an average project size of 1,134 MW. In contrast, onshore wind growth remains constrained by planning and policy barriers, with 43 projects approved in the last 12 months (ending Q2), ranking 12th out of 16 years, and a relatively modest 915 MW of capacity, averaging 21 MW per project. Overall, total capacity for approved wind and solar projects in the last 12-months (ending Q2) reached a record 12,549 MW. While project numbers remain steady, the average scale of developments is increasing sharply, signaling that the UK’s renewable expansion is shifting from volume to scale, led by large solar and offshore wind projects.

Fuel Type Breakdown Britain’s electricity generation in September 2025 was led by wind, which contributed 35% of the energy mix, its highest September share in the past five years. This represented a 9 percentage point increase compared to September 2024 and outpaced gas generation by 13 percentage points, reinforcing wind’s continued dominance as Britain’s leading power source. Gas, meanwhile, supplied 22% of electricity in September 2025, marking its lowest September contribution in the past five years and half of the share recorded in September 2022. This decline highlights ongoing progress in reducing reliance on fossil fuels. Electricity imports accounted for 15% of Britain’s generation mix, consistent with September 2024 but remaining substantially higher than in 2021 (10%), 2022 (2%), and 2023 (11%). This sustained level reflects continued dependence on cross-border electricity flows to balance domestic supply. Nuclear power contributed 10% to the mix, down from 16% in September 2024 and below the levels seen in 2021 (16%), 2022 (15%), and 2023 (17%). This marks a continued period of reduced nuclear availability. Solar generation delivered 7% of Britain’s electricity in September 2025, its highest September share in the past five years and 1 percentage point higher than in September 2024. This record contribution highlights solar’s growing role in supporting Britain’s late-summer energy demand. Storage technologies supplied 2% of the mix, up 1 percentage point year-on-year and the highest September contribution in the last five years, signalling ongoing improvements in grid flexibility and battery capacity. Biomass contributed 7% to the mix, 1 percentage point lower than in September 2024 but still representing its second-highest September share in the past five years. Hydropower remained steady at 2%, consistent with levels in 2023 and 2024, and 1 percentage point above those recorded in 2021 and 2022. Coal remained absent from the generation mix, continuing Britain’s phase-out of coal-fired power. Zero-Carbon Sources & Carbon Intensity Zero-carbon sources, including wind, solar, nuclear, and hydro, delivered 67% of Britain’s electricity in September 2025, the highest share of any month on record and nearly 30 percentage points higher than in September 2021. This milestone reflects the steady structural shift toward a cleaner, more sustainable energy system. Carbon intensity for September 2025 fell to 112 gCO₂/kWh, the lowest September figure in the past five years and 45% below the level recorded in September 2021, underscoring substantial progress in reducing emissions from electricity generation. Over the longer term, the 12-month rolling average for zero-carbon generation remained at 52%, consistent with the previous period and indicating a short-term plateau in renewable expansion. In contrast, the rolling average carbon intensity rose by 8% to 133 gCO₂/kWh compared with the previous 12 months, signalling the importance of accelerating clean energy deployment to sustain downward momentum. Concluding Remarks September 2025 marked a strong month for Britain’s renewable generation, led by record wind output and growing solar capacity. Together, these sources helped deliver the highest September share of zero-carbon electricity in five years, driving carbon intensity to new lows. However, the decline in nuclear generation and continued reliance on imports highlight the need for further investment in domestic clean energy infrastructure and flexible technologies. While progress in storage and renewable deployment is evident, maintaining long-term momentum will be essential to achieving sustained reductions in carbon intensity and strengthening Britain’s energy resilience. Britain's Electricity Summary Charts