In the first six months of 2025, UK solar power generation soared to 9.91TWh, a 32% increase compared to the same period in 2024 according to Ember’s latest analysis. This historic figure was driven by increased deployment, better technology, and the UK’s sunniest spring on record since 1910. Total operational solar PV capacity now exceeds 22GW, putting the UK among the leading European nations for solar capacity The record 9.91TWh generation displaced millions of tonnes of carbon dioxide and saved around £600 million in imported gas costs .
What Drove the Record UK Solar Generation in 2025?
In the first six months of 2025, UK solar power generation soared to 9.91TWh, a 32% increase compared to the same period in 2024 according to Ember’s latest analysis. This historic figure was driven by increased deployment, better technology, and the UK’s sunniest spring on record since 1910. Total operational solar PV capacity now exceeds 22GW, putting the UK among the leading European nations for solar capacity The record 9.91TWh generation displaced millions of tonnes of carbon dioxide and saved around £600 million in imported gas costs .
Two key factors powered the UK’s solar revolution in 2025. First, the nation experienced unseasonably high sunshine hours, especially in the spring and early summer. Second, there was an acceleration of solar PV installations, with over 2GW added in just six months—almost the same as in the entire year 2024. Over 120,000 certified domestic solar installations were completed in H1 2025, a 37% increase year on year.
For larger scale commercial projects, the average size of new installations continues to climb, reflecting the drive for efficiency and fast returns on investment—a trend Atlantic Renewables is seeing firsthand among clients.
Why Solar Deployment is Accelerating Across the UK
Renewed government support, favourable policies, and more competitive pricing for technology have helped solar PV become the most attractive renewable investment in the UK’s energy transition. Initiatives like the Smart Export Guarantee, net zero mandates, and local authority solar schemes feed into this momentum. As installation costs fall and storage options improve, Atlantic Renewables’ engineers and expert project managers are helping more homeowners and businesses realise the full benefits of solar PV.
If you want to learn about the best solar PV opportunities and battery storage solutions, contact Atlantic Renewables and let our team guide you through every step.
What Does 9.91TWh of Solar Generation Mean for Decarbonisation?
The surge in solar output boosted renewables’ share of the UK electricity mix. Renewables provided over half (50.4%) of UK electricity in 2024 and are now outpacing fossil fuels. Wind and solar together accounted for the largest growth areas, with solar representing up to 11.6% of monthly electricity generation in May alone.
This achievement places the UK ahead of many European peers in its path to net zero and establishes solar PV as a cornerstone of sustainable energy infrastructure for the next decade.
How Will Battery Storage Boost the Benefits of Record Solar Generation?
With more homes, businesses, and grid operators turning to solar, battery storage is essential for balancing demand, supporting energy independence, and maximising the value of every kWh generated. Atlantic Renewables recommend pairing solar PV systems with smart battery solutions to increase savings, enhance resilience, and enable flexible use of solar electricity—whether for self-consumption, grid export, or electric vehicle charging.
For guidance on the latest battery storage technologies and how Atlantic Renewables can future-proof your energy setup, call our local experts today.
What Trends are Shaping the UK Solar Market After the Record First Half of 2025?
Solar installations are increasingly moving towards higher capacity, greater efficiency, and integration with smart home and business systems. Trends include:
- Growth in community and commercial-scale projects
- Adoption of energy-management apps to track real-time generation
- Demand for high-performance panels and longer warranties
Atlantic Renewables are actively enabling these advancements, tailoring each installation to provide optimal return and energy security. For the most trusted solar and battery storage advice in the North West, reach out for a free site survey from our engineers.
Key Benefits for UK Households and Businesses Switching to Solar
Alongside decarbonisation, households and businesses install solar for cost savings, security against energy price shocks, and increased property value. In 2025, home solar adoption is at its highest level in a decade, with over 1.8 million installations nationwide. Over time, every unit of solar power generated helps reduce reliance on imported gas, lower carbon emissions, and provide resilience for the UK energy system.
Want to know if solar is right for your home or building? Chat to Atlantic Renewables and let our team review your energy goals.
Get in Touch
Ready to join the solar revolution? If considering a solar PV system or needing support for an existing setup, contact Atlantic Renewables, our engineers and expert team would be delighted to assist. Call 0161 207 4044 and start harnessing the benefits of record-breaking UK solar today!
