Solar Overtakes Coal: How Solar Energy Became the UK’s Leading Power Source in 2025

Solar Power Generation Surpasses Coal in the UK

The UK’s energy landscape has transformed dramatically over the past decade. In 2024, solar power generated more electricity than coal for the first time in history, with solar contributing over 9% of the UK’s electricity mix during peak summer months, while coal’s share dropped below 2%. This remarkable achievement is the result of sustained investment in solar photovoltaic (PV) technology, favorable government policies, and a growing public consciousness about the environmental impact of fossil fuels.

Coal, once the backbone of Britain’s industrial revolution, has been in steady decline. The UK government’s commitment to phasing out unabated coal-fired power stations by October 2024 has accelerated this trend, paving the way for renewables to take centre stage. Solar energy, with its scalability and rapid deployment, has emerged as the leading contender to fill this gap, supported by innovative battery storage solutions that ensure reliable power even when the sun isn’t shining.

Why Is Solar Energy Outperforming Coal?

Several key factors have contributed to solar’s ascendancy over coal:

• Cost Competitiveness: The cost of solar PV installations in the UK has plummeted by more than 80% since 2010, making solar one of the cheapest sources of new electricity generation. This cost advantage has made it increasingly attractive for both homeowners and businesses.
• Technological Advancements: Modern solar panels are more efficient, durable, and aesthetically pleasing than ever before. Innovations in battery storage, such as 10kW and 20kW systems, allow excess solar energy to be stored and used during periods of low sunlight, further enhancing the reliability of solar power.
• Policy Support: Government incentives, feed-in tariffs, and net metering schemes have incentivised investment in solar, while the planned closure of coal plants has reduced competition from fossil fuels.
• Public Demand for Clean Energy: Growing awareness of climate change and air pollution has spurred demand for renewable energy solutions, with solar panels becoming a common sight on UK rooftops.

How Has Solar Overtaken Coal in Global Energy Markets?

The UK is not alone in this transition. Globally, solar energy investments outpaced those in coal and other fossil fuels in 2023, with solar accounting for over 50% of all new power generation capacity installed worldwide. China, the US, and the EU have all seen record solar deployment, driven by ambitious climate targets and the need for energy security.

In the UK, solar’s rapid growth has been supported by a robust supply chain, skilled installers like Atlantic Renewables, and a maturing market that offers affordable, high-quality systems for homes and businesses. As a result, solar now provides more electricity than coal on an annual basis—a trend that is expected to accelerate as battery storage and smart grid technologies become more widespread.

What Are the Benefits of Solar Energy Over Coal?

Solar energy offers a range of benefits that make it superior to coal in today’s energy landscape:

• Zero Emissions: Solar PV systems generate electricity without producing greenhouse gases or air pollutants, helping to combat climate change and improve air quality.
• Energy Independence: By generating electricity onsite, homeowners and businesses can reduce their reliance on the grid and protect themselves from energy price volatility.
• Job Creation: The solar industry supports thousands of jobs in manufacturing, installation, maintenance, and research, fostering economic growth and innovation.
• Scalability: Solar can be deployed at any scale, from small rooftop systems to large solar farms, making it a flexible solution for diverse energy needs.

How Can Homeowners and Businesses Benefit from Solar?

The benefits of solar energy are not limited to utilities and governments. Homeowners and businesses across the UK are increasingly turning to solar PV systems to reduce their energy bills, lower their carbon footprint, and increase property values. With battery storage solutions, it’s now possible to store excess solar energy for use during the evening or on cloudy days, maximising self-consumption and savings.

Atlantic Renewables, a leading UK solar installer, offers a range of tailored solutions for residential and commercial clients, including 10kW and 20kW solar systems, battery storage, and expert advice on optimising your energy usage. Our engineers ensure every installation is designed for maximum efficiency and long-term reliability.

What Does the Future Hold for Solar Energy in the UK?

The outlook for solar energy in the UK is brighter than ever. With coal set to be completely phased out and demand for clean electricity rising, solar is poised to play a central role in the nation’s energy transition. The government’s target of achieving net zero emissions by 2050 will require continued investment in renewables, smart grids, and energy storage.

Emerging technologies, such as bifacial solar panels and advanced battery chemistries, promise even greater efficiency and cost savings in the years ahead. As solar becomes the backbone of the UK’s electricity system, homeowners, businesses, and communities stand to benefit from cleaner air, lower bills, and a more sustainable future.

Get in touch

If you are ready to join the solar revolution or want to upgrade your existing system, get in touch with Atlantic Renewables today. Our team of experts is here to help you harness the power of the sun and secure your energy future. Call us on 0161 207 4044 and start taking advantage of your new solar system today!