Solar Panel FAQs

Popular Solar FAQs

Solar panels are a smart investment for anyone looking to reduce energy bills, lower their carbon footprint, and increase their energy independence. They generate electricity from daylight - not just direct sunlight - making them effective even in cloudier regions like much of the UK.

Once installed, solar panels can significantly cut your electricity costs, and through the Smart Export Guarantee, you can earn money by selling unused energy back to the grid. With minimal maintenance and lifespans of 25 years or more, they offer long-term value and stability against rising - and often volatile - energy prices.

Solar panels also add appeal to properties by improving their sustainability credentials. Whether you’re a homeowner or running a business, switching to solar is a practical and eco-friendly way to take control of your energy use while contributing to a greener future.

Domestic Solar FAQs

  • Yes - solar panels work using daylight, not just direct sunshine. Even in cloudy or rainy regions like Cumbria, they still generate electricity effectively throughout the year.

  • Costs vary based on system size, battery storage, and installation complexity, but typical UK home systems start around £5,000–£7,000. Businesses, industrial units or farms may require larger setups.

  • Most solar panels come with a 25-year performance warranty and can last 30+ years with minimal maintenance.

  • Yes. Solar panels can cut electricity bills by 50–70%, and excess energy can be sold back to the grid via the Smart Export Guarantee (SEG). There are a huge range of tariffs available suited to each specific user’s needs.

  • For most homeowners or small businesses in the UK (including Cumbria), the payback period is typically between 6 to 10 years, depending on several key factors:

    1. System Size & Cost
      – A typical 4 kW domestic system might cost £5,000–£7,000.

    2. Electricity Usage
      – The more power you use during the day, the faster the savings add up.

    3. Battery Storage
      – Batteries increase upfront cost but can reduce reliance on grid energy and speed up savings.

    4. Smart Export Guarantee (SEG)
      – Earn money by selling unused electricity to the grid.

    5. Energy Prices
      – Rising electricity rates shorten the payback period by increasing your savings.

  • Usually not, solar panels on homes and most commercial buildings fall under Permitted Development. Exceptions include listed buildings or properties in conservation areas.

  • Yes, they can. Homes with solar are often more attractive to buyers thanks to lower running costs and environmental appeal.

  • A typical 3-4 bedroom home needs around 15-25 m² of south-facing roof space for a standard 4kW system. GlowSolar will always recommend the most cost-effective number of solar panels and identify the most suitable location for them. One or more roofs can be used.

  • Yes. You can install a battery storage system to store unused energy for later - increasing your self-sufficiency. GlowSolar will advise on the size of battery required, dependent on your needs.

  • You can leave the panels in place (increasing resale value) or in rare cases, relocate them. SEG earnings can be transferred to new owners.

  • Not usually 100%, but solar can significantly reduce your energy bills, especially if usage peaks during daylight hours.

  • Most home installations are completed in 1 to 2 days. Larger commercial or farm systems may take longer, depending on scale.

  • Very little. Panels are designed to be self-cleaning in the rain, and occasional inspections keep them running efficiently.

  • GlowSolar offers a five year, insurance-backed warranty on workmanship, in addition to each solar panel and battery manufacturer’s product warranties. Support is always available for repairs or replacements.

Commercial Solar FAQs

  • Absolutely. Solar is a visible and measurable way to reduce your carbon footprint — important for ESG reporting and attracting eco-conscious customers or investors.

  • Most businesses see ROI in 5–8 years, depending on energy use, export earnings, and any tax savings or grants applied.

  • Possibly. Homes or businesses within the Lake District National Park or in listed buildings/conservation areas may require planning permission. GlowSolar can help you navigate this process.

    In most cases outside of Cumbria and the Lake District National Park solar panels on homes and most commercial buildings fall under Permitted Development, and do not require planning permission.

  • Working on the basis that a typical 3-4 bedroom home needs around 15-25 m² of south-facing roof space for a standard 4kW system, we can scale up from there.

    We have have installed tens of thousand's of Solar PV panels across the UK, from village halls to King's Cross Railway station, and from Cumbrian cottages to the 2012 Olympic Park.

    GlowSolar will always recommend the most cost-effective number of solar panels and identify the most suitable location for them. One or more roofs can be used.

  • Yes. Businesses may benefit from capital allowances, tax relief, or local/national grants for renewable energy projects.

  • Not usually 100%, but solar can significantly reduce your energy bills, especially if usage peaks during daylight hours.

  • Yes. You can install a battery storage system to store unused energy for later - increasing your self-sufficiency. GlowSolar will advise on the size of battery required, dependent on your needs.

  • Very little. Panels are designed to be self-cleaning in the rain, and occasional inspections keep them running efficiently.

  • GlowSolar offers a five year, insurance-backed warranty on workmanship, in addition to each solar panel and battery manufacturer’s product warranties. Support is always available for repairs or replacements.

  • Most smaller business installations are completed in 1 to 2 days. Larger commercial or farm systems may take longer, depending on scale.

Our Solar Services

  • Solar panels and a wind farm

    Solar Panels

    Solar PV is a good investment. Solar gives you energy security, saving you money on your electricity bills and protecting you from inevitable future price rises from energy suppliers.

  • Solar PV Battery Storage

    Battery Storage

    Capture and store green energy with a solar battery. Adding a solar battery array is a great way to make the most of renewable energy and increase your independence from the grid.

  • Solar panel repair. Image by: Ricardo Gomez Angel @rgaleriacom

    Maintenance & Repairs

    All electrical systems need periodic inspection and testing. Solar PV systems are no different. For PV systems mounted on buildings, the recommended inspection interval will depend on the type and use of the building.

Get A Solar Quote

Contact us for a free, no obligation quote. We will visit your property and give our expert opinion on the best solar solution. No sales patter, just honest advice.