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UK Solar Capacity Hits New Highs: A Major Milestone in Renewable Energy

UK Solar Capacity Hits New Highs: A Major Milestone in Renewable Energy

Date: 11 July 2024 | By: The Team

The UK's solar energy sector has achieved a significant milestone, with installed solar capacity now exceeding 15.9 gigawatts (GW) as of April 2024. This marks a considerable increase, underscoring the nation's commitment to transitioning to renewable energy and reducing carbon emissions.

Key Drivers Behind the Growth

Several factors have contributed to this impressive growth in solar capacity:

  1. Government Support and Policy Initiatives The UK government has been a strong advocate for renewable energy, setting ambitious targets and providing substantial financial support. The government's goal is to achieve 70 GW of installed solar capacity by 2035, a fivefold increase from the current levels​ (GOV.UK)​.
  2. Technological Advancements Innovations in solar technology, such as the development of lightweight and highly efficient solar panels, have made solar energy more accessible and cost-effective. Advances in materials like perovskite and transition metal dichalcogenides (TMDs) have enhanced the efficiency and flexibility of solar panels, facilitating broader adoption across various applications​ (CSIRO)​​ (SciTechDaily)​.
  3. Increased Investment There has been a surge in investment from both the public and private sectors. The government's recent allocation of £120 million for established technologies, including solar and onshore wind, is expected to drive further growth. This investment aims to support the development of green finance mechanisms and overcome barriers to retrofitting existing buildings with solar panels​ (GOV.UK)​​ (GOV.UK)​.
  4. Community and Small-Scale Installations A significant portion of the new capacity has come from small-scale installations. In the first four months of 2024 alone, 190 megawatts (MW) were added, with installations of 4 kilowatts (kW) or less contributing 84 MW to this total. This trend highlights the increasing role of community and residential solar projects in the UK's renewable energy landscape​ (PVKnowhow)​​ (GOV.UK)​.

The Road Ahead

While the current growth is commendable, there are still challenges to be addressed to meet the 70 GW target by 2035. These include:

  • Grid Infrastructure: Enhancing the grid infrastructure to accommodate the influx of solar power is crucial. The government has announced plans for network reforms and investments in transmission networks to ensure timely grid connections for new projects​ (GOV.UK)​.
  • Scaling Up Large Projects: While small-scale installations are essential, scaling up large utility-scale solar farms will be necessary to achieve the ambitious targets. Projects like the 400 MW Longfield Solar Farm in Essex are examples of large-scale initiatives that will play a pivotal role in the future​ (Solar Energy UK)​.
  • Continued Innovation: Ongoing research and development in solar technologies will be vital. Innovations that increase efficiency and reduce costs will make solar power more competitive and attractive for broader applications​ (CSIRO)​​ (SciTechDaily)​.


The UK's achievement of 15.9 GW in installed solar capacity is a testament to the concerted efforts of the government, industry, and communities. As we look forward to 2035, continued support, innovation, and investment will be key to realizing the vision of a sustainable and renewable energy future. This milestone is not just a victory for the solar industry but a significant step towards a greener and more resilient planet.

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