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Understanding the economics of solar roofing for modern homeowners

According to recent data from the UK Department for Business, Energy & Industrial Strategy, residential solar installations have seen a 12% year-on-year increase in London. This reflects a growing trend in harnessing clean energy at the domestic level.

But as a homeowner, before you go on to follow a trend, it is necessary that you understand the various aspects associated with it. Which brings you here – to understand the economics of installing solar roofing in your home.

In this article, we delve into the economic projections, unravelling the compelling case for installing solar panels on London roofs. At the end of the blog, we hope you will get in touch for more specific information and for expert guidance for your own installation. Please contact our solar panel experts at Tarven Solar Energy. Call 020 8087 0216 or email enquiries@tarvenlimited.co.uk.

Understanding solar roofing economics

Solar roofing involves the installation of photovoltaic (PV) panels on rooftops, enabling the conversion of sunlight into electricity. As Londoners face the challenge of ever rising energy costs, solar roofing is emerging as a viable cost-effective solution, promising a tangible impact on household finances.

The fundamental principle revolves around reducing dependence on conventional grid-based electricity, leading to substantial long-term cost savings for homeowners.

Beyond the immediate natural heating gains, solar roofing represents a strategic investment with a promising return on investment (ROI). Over time, the initial capital expenditure on solar panel installation pays off through reduced energy bills, offering homeowners a pathway to sustainable and economically-savvy living.

Financial benefits associated with home solar installation

  1. Long-term cost savings and Return on Investment (ROI)

    Embracing a residential solar installation will translate into substantial long-term cost savings for London homeowners. As the cost of solar technology continues to decrease, the ROI (return on investment) becomes increasingly attractive.

    By harnessing the power of the sun, homeowners can significantly reduce their reliance on conventional grid-based electricity and their energy bills, contributing to a positive economic impact over the system’s lifespan. These cumulative savings often make the initial investment a financially prudent choice.

  2. Government incentives and subsidies

    The financial allure of home solar installation is further enhanced by government incentives and subsidies. Various schemes, such as the Feed-in Tariff (FiT) and the Smart Export Guarantee (SEG), provide financial support to homeowners generating their own renewable energy.

    These incentives not only offset installation costs but also contribute to ongoing financial benefits, making solar technology an economically viable choice.

  3. Energy independence

    Solar installation fosters energy independence, liberating homeowners from the volatility of fluctuating energy prices. As utility costs continue to rise, the ability to generate one’s own electricity shields homeowners from external market pressures, providing a stable and predictable energy cost landscape.

  4. Increased property value

    Home solar installations contribute to the overall value of a property. Studies show that homes equipped with solar panels command higher resale values in the real estate market.

    Prospective buyers are often attracted to the prospect of reduced energy costs and the environmental appeal of solar technology, making solar-equipped homes a sought-after commodity.

  5. Environmental offsetting and carbon credits

    Beyond direct financial benefits, home solar installations allow homeowners to contribute to environmental sustainability.

    Some government-backed programmes offer carbon credits or offsets, providing an additional avenue for financial gains. By participating in these national grid initiatives, homeowners can align their commitment to clean energy with financial incentives, further enhancing the economic appeal of solar roofing.

The process of solar roofing installation in London

  1. Choosing trustworthy solar panel installers

    Embarking on the solar roofing project begins with the task of finding a trustworthy solar panel installers. Homeowners really need to conduct thorough research to identify certified and reputable professionals who possess the expertise needed for a successful installation.

    Consideration of industry certifications, customer reviews, and viewing past projects is paramount. This initial step sets the tone for a seamless and reliable solar experience, ensuring that the installation team has the competence to navigate challenges and deliver a high-quality system.

    Trustworthy installers not only guarantee technical proficiency but also provide valuable insights during the planning phase, contributing to the overall success of the solar roofing project. Making an informed choice at this stage is fundamental to reaping the full economic and environmental benefits of solar panel installation.

  2. Site assessment and design

    The solar roofing journey kicks off with a thorough site assessment, a crucial step in tailoring the system to the property’s unique characteristics. Professionals evaluate the roof’s structural integrity, its orientation towards the sun, and potential shading issues.

    This comprehensive analysis guides the design process, ensuring that the solar panels are strategically positioned to harness maximum sunlight.

    A well-executed site assessment not only optimises energy production but also enhances the overall efficiency and longevity of the solar installation.

  3. Permissions and paperwork

    Before starting a solar installation, navigating local and national rules and regulations is paramount. Obtaining the necessary permits involves working through local building codes and consulting your borough town planners.

    Experienced solar installers will take charge of this process, streamlining the bureaucratic intricacies to ensure legal compliance. Clearing this administrative hurdle paves the way for a smooth installation and provides homeowners with the peace of mind that their solar project adheres to all relevant standards.

  4. Roof preparation

    Preparing the roof is a pivotal phase in the solar installation process. Beyond simply placing the new solar panels on the roof, assessing the roof’s condition is crucial for long-term stability.

    Maintenance might be required to address any existing issues, reinforcing the structure if necessary, and creating an optimal surface for panel placement.

    Thorough roof preparation facilitates a seamless installation but also contributes to the overall durability of the roof itself, protecting the homeowner’s investment for years to come.

  5. Solar panel installation

    At the heart of the solar roofing process is the installation of the solar panels. Following the technical plans developed during the design phase, trained installers mount the panels onto the prepared roof structure.

    This step demands precision and expertise to guarantee the optimal alignment and spacing of panels, maximising sunlight absorption.

    Quality installations ensure immediate energy production but also sets the foundation for the system’s efficiency throughout its operational life.

  6. Electrical wiring and connection

    Once the panels are securely in place, focus shifts to the electrical components. Wires connect the solar panels to inverters, essential for converting captured sunlight into usable electricity.

    Professionals pay close attention here to safety standards and seamlessly integrate the system with the property’s existing electrical infrastructure.

    This phase is critical for the functionality and safety of the entire solar installation, requiring a thorough understanding of electrical systems and solar technology.

  7. Testing and commissioning

    Rigorous testing follows to check and validate the new system’s performance. This includes a comprehensive assessment of electrical connections, operational checks, and overall functionality.

    Only after satisfying stringent testing criteria is the new solar system officially commissioned for regular use. Thorough testing ensures immediate reliability but also sets the stage for a trouble-free experience throughout the system’s lifespan.

  8. Monitoring and maintenance guidance

    Post-installation, homeowners should receive valuable guidance on monitoring and maintaining their solar panel system. Regular checks and, if necessary, professional maintenance play a crucial role in ensuring the longevity and efficiency of the installation.

    Some systems may include smart monitoring tools that allow homeowners to track energy production, providing insights into the system’s performance and empowering them to maximise the benefits of their solar investment.

    A proactive approach to monitoring and maintenance contributes to the sustained success of the solar roofing system over time.

Overcoming common challenges in home solar roofing

  1. Shading issues

    Shading, whether from neighbouring structures or foliage, poses a threat to solar panel efficiency. To counter shading challenges, meticulous planning is essential.

    Strategic panel placement, optimal tilt angles, and the integration of technologies such as micro-inverters help mitigate shading impacts.

  2. Initial cost barrier

    The initial cost of solar installation can sadly be a deterrent for many savvy homeowners considering a solar roofing project. Overcoming the financial barrier might involve leveraging government incentives, taking out a loan, or exploring financing options with your chosen installer, balanced against the long-term savings associated with solar technology.

  3. Aesthetics concerns

    Concerns about the visual impact of solar panels on a property’s aesthetics also influence decision-making. Advancements in solar design and integration techniques can help to address these worries.

    Modern solar panels are designed to blend seamlessly with various roofing materials, ensuring a visually pleasing outcome that complements the overall look of the property.

  4. Weather and climate variability

    Unpredictable weather patterns pose a risk to consistent solar energy production. Mitigating the impact of weather involves choosing high-quality solar panels designed for diverse climates and incorporating weather-resistant materials.

    These measures enhance the system’s resilience, ensuring reliable energy production regardless of environmental conditions.

  5. Pigeon nesting

    The presence of pigeons seeking refuge beneath solar panels can present cleanliness issues, potential damage, and disruptions in energy production.

    Tackling the challenge of pigeon nesting involves incorporating effective bird-proofing measures during or after the solar panel installation.

  6. Maintenance and repairs

    Homeowners may be uncertain about maintenance requirements and potential repair costs associated with solar roofing. Your chosen home solar installers should be able to address these concerns.

    At Tarven, we offer comprehensive solar panel care services including maintenance, cleaning, repair, and more. For more information call us on 020 8087 0216 now.

  7. Regulatory changes

    Evolving regulations and government policy changes can impact available incentives and subsidies. Staying informed about regulatory updates and working with experienced installers who understand and can navigate these changes is crucial.


Embracing solar roofing in London is a multifaceted investment that extends beyond mere energy production. From the careful selection of trustworthy installers to overcoming common logistical challenges, well-informed homeowners have a far better sense of economic empowerment and environmental responsibility.

Since you’re already here, rest assured you don’t need to go anywhere else for reliable home solar installers near you. Tarven Solar Energy is a team of local expert solar energy specialists with 12+ years’ experience in the field. We supply and install high-quality solar PV panels tailored to your home’s needs. Contact us now to get started.