In this article, Susan Wells, EV and solar director at domestic smart energy supplier Hive, explores how solar deployment will scale up in the coming years, in relation to the policy support available in Britain.
The take-up of solar energy is increasing across Britain as more households and businesses seek to harness the benefits of clean, homegrown energy. In 2025 alone, installed capacity increased by 13.6%, from 19.0 GW to 21.6 GW.
These advances reinforce the growing role of solar in the UK energy system, reducing bills, strengthening energy security and supporting long-term decarbonisation. But the bigger question now is whether Britain can maintain the pace of implementation and significantly accelerate it.
The government has set a target of reaching 45 GW of solar capacity by 2030, meaning supplies must more than double within the next four years. Recent government announcements have also highlighted the role that homegrown clean energy will play in strengthening the UK’s energy security and domestic energy generation. Achieving this will depend less on the technology itself and more on the systems around it: network infrastructure, workforce capacity, planning processes and consumer access.
In many ways, the technology question has already been answered. Solar energy is now one of the most mature and cost-effective forms of new energy generation available. Systems are more efficient while installation models are well established. The challenge now is to scale up delivery.
One of the most immediate constraints remains grid capacity, especially for large-scale solar projects. Connection timelines and local grid constraints continue to impact renewable energy deployment across the system, from large-scale projects to distributed generation.
The government and Ofgem have already started implementing reforms to streamline grid connections and accelerate network investment. The next step will ensure that these reforms translate into faster connections and stronger local infrastructure in practice. Without sufficient network capacity, even projects that are ready to be built can be delayed.
Planning processes also play an important role. Solar energy is increasingly recognized as a central part of the UK’s energy strategy, but planning outcomes can still vary significantly between local authorities. Greater consistency in guidance and decision-making would help increase developer confidence while ensuring that compliant projects can proceed efficiently.
What the industry must deliver
In addition to infrastructure, the sector must also continue to expand the skilled workforce needed to achieve this growth.
Installing millions more solar panels in homes and commercial buildings will require a continued increase in trained installers, electricians and engineers. The renewable energy workforce is growing, but demand is rising rapidly as electrification in heating, transportation and energy increases.
Household solar adoption has increased significantly in recent years, thanks in large part to homeowners wanting more control over how they power their homes and how much they spend on energy. For many, generating electricity at home is becoming an increasingly practical way to manage energy costs in the long term.
However, despite improving economic conditions, upfront costs remain one of the biggest barriers to wider adoption. The long-term benefits of solar energy are well known, but the initial investment can be a barrier for many households.
This is where flexible financing options, clear payback expectations and trusted installation pathways will play an important role in broadening access.
The policy will also influence the speed at which the use of solar energy will increase in the coming years. The recent one Future Homes Standard Announcementfor example, will play an important role in supporting rooftop solar energy. By building new homes from the ground up with technologies like solar energy and electrified heating, we reduce the need for expensive renovations and help consumers embrace this technology and see the benefits of the connected home. Building new homes avoids the need for expensive renovations later and makes on-site generation a normal part of how homes are powered.
At the same time, the majority of homes that will exist in 2050 have already been built. Ensuring that solar energy can be installed easily and efficiently in existing buildings therefore remains just as important.
The UK solar sector is clearly gaining momentum. At Hive we have seen our own solar panel installations increase by 173% in the first three months of 2026 to date compared to the same time last year. The growth of the past year shows that deployment can accelerate if the right conditions exist.
The next step is to ensure that momentum translates into sustainable progress over the rest of the decade. That will depend on how effectively the industry continues to scale installation, expand skillsets and make solar energy accessible to more homes and businesses.
If that happens, solar will not only support the UK’s clean energy ambitions – it will become one of the technologies that determine how quickly the country can achieve its wider energy transition.
