UK Rooftop Solar Market Set to Double from $1.14 Billion to $2.14 Billion, Driven by Record Installations

UK rooftop solar panel market is estimated at $1.14 billion in 2025 and is expected to expand to $2.14 billion by 2035, registering a CAGR of 6.5% over the 2026–2035 forecast period. Rooftop solar in the UK is gathering pace as both homeowners and small businesses embrace solar PV for energy savings and cleaner power. Growth is supported by revised building regulations promoting energy efficiency on new builds, rising consumer confidence in solar technology, and increased awareness of cost advantages. These factors are driving sustained deployment of rooftop systems, contributing to a broader distributed energy strategy and reinforcing solar’s role in the UK’s clean energy transition.

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According to ESE Solar, the UK experienced a remarkable surge in rooftop solar installations in the first quarter of 2025, with 57,000 certified solar installations, the highest first-quarter figure since 2012. The month of March 2025 alone saw 21,000 installations, the most for any month since December 2015. According to the same source, solar generation also reached a new milestone in April 2025 with 12.7 GW of power produced in a single day, supported by increased deployment and favourable weather. The total solar capacity in the UK now exceeds 18 GW, reflecting the cumulative impact of rooftop and other solar PV installations.

Targeted Capital and High-Efficiency Modules Strengthen the UK Rooftop Solar Market Landscape

• In August 2025, Greenvolt Group, backed by KKR, outlined a €320 million investment plan to expand solar energy capacity in the UK over the next three years. The strategy targets 1 GW of installed capacity by 2028, with €50 million allocated to Greenvolt Next UK in Warrington. This funding supports the rollout of 500 MW of rooftop solar across commercial and industrial facilities, reinforcing distributed generation within the market.
• In June 2025, Greenvolt Next UK began installing rooftop solar systems at the Weston Favell shopping centre in Northampton and the Birchwood centre in Warrington. Working with MDSR Investments, the projects are structured under Power Purchase Agreements, enabling access to clean electricity without upfront capital while lowering long-term energy costs and carbon emissions.

• In May 2025, UKSOL entered a partnership with Amco Renewables to supply 440W N-Type solar panels with 23.3% efficiency. The modules feature a full-black design, MBB half-cell technology, and a 30-year British warranty, supporting optimized system layouts, reduced installation costs, and long-term durability for rooftop solar projects.

Market Coverage

• The market number available for – 2025-2035
• Base year- 2025
• Forecast period- 2026-2035
• Segment Covered-
  • Type
  • End User
• Competitive Landscape – Canadian Solar Inc., JA Solar Technology Co., Ltd., JinkoSolar Holding Co., Ltd., LONGi Green Energy Technology Co., Ltd., Trina Solar Co., Ltd., among others.

Key questions addressed by the report.

• What is the market growth rate?
• Which segment and region dominate the market in the base year?
• Which segment and region will project the fastest growth in the market?
• Who is the leader in the market?
• How are players addressing challenges to sustain growth?
• Where is the investment opportunity?

UK Rooftop Solar Panel Market Report Segment

By Type

• Monocrystalline Silicon
• Polycrystalline Silicon
• Thin-Film
  • Amorphous Silicon (a-Si)
  • Cadmium Telluride (CdTe)
  • Copper Indium Gallium Selenide (CIGS)
• Others

By End-User

• Household Sector
• Corporate Sector

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