As Great Britain celebrates a record-breaking year for renewable energy in 2025, the national data confirms what we at Absolar have seen across our managed portfolio: solar power is no longer a niche contributor but a powerhouse of the UK grid.
According to recent BBC analysis of National Energy System Operator (Neso) data, renewables generated a record 127 terawatt hours (TWh) of electricity in 2025, surpassing the previous high of 119TWh in 2024.
Our portfolio data mirrors the national surge, showing significant year-on-year increases in solar yield.
For instance, the SCBS Poole increased its output from 64,520 kWh to 70,032 kWh, and Benham 4 grew from 68,558 kWh to 78,248 kWh.
These gains are not merely due to better weather; they are the result of precise management.
While the BBC notes that national peak solar production hit 40% during some July windows, Absolar’s analytics allow individual businesses to track these peaks with minute-by-minute granularity.
While wind remains the largest single renewable source, solar energy saw the most notable growth last year. Nationwide, solar generation rose by nearly a third compared to 2024 levels. Key statistics from the past year include:
This surge was fuelled by the UK experiencing its sunniest year on record, alongside a massive expansion in infrastructure, including roughly 250,000 new small-scale rooftop installations.
The power of Absolar’s analytic capability is best demonstrated through our high-resolution production tracing, as seen in the September 2025 report for WA Café and Patisserie.
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In an era where electricity tariffs are volatile, understanding exactly when you use your power is the key to cost saving.
Our analytics take advantage of the spread between day-time import tariffs and export tariffs. By ensuring that solar energy is used immediately within the building rather than being exported back to the grid, we maximise the financial return for our clients.
This level of detail is essential as the UK grid actually became slightly more polluting in 2025 due to increased gas reliance; by maximising self-consumption, our clients bypass this grid-level carbon intensity while slashing their bills.
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The BBC highlights that the UK is currently behind the "exponential scale-up" required for the 2030 clean power target. However, Absolar’s high-resolution tracing provides the blueprint for getting there. We don't just provide panels; we provide the analytic lens needed to turn every ray of sunshine into maximum profit and minimum carbon.
Absolar’s team combines advanced remote surveying with meticulous project planning and stakeholder coordination - a critical factor in delivering safe, cost-effective installations at scale.
As this project progresses, we’ll continue to share updates and outcomes; and showcase how clean energy can work hand-in-hand with thoughtful design, safety, and long-term value for businesses and communities.
If you would like to know more about your building's solar potential, you can request a free Remote Solar Survey here, or contact our friendly solar engineering team.
📍 Visit us: Engineering Centre, Southampton Science Park, Southampton, SO16 7NP
📞 Phone: 02382 680 106
✉️ Email: info@absolar.co.uk
🌐 Website: www.absolar.co.uk
👉 Or use our AI-powered solar calculator to request a Remote Solar Survey report for your property.
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