Choosing the right solar energy company is an important step in this transition one that can influence not only the efficiency of your system but also your long-term savings and environmental impact. With numerous providers offering a range of services from bespoke installations to large-scale commercial projects, finding a reliable, experienced partner can be a challenge.
To help you navigate the options, we’ve curated a list of the Top 10 Solar Energy Companies in London. These companies are recognised for their outstanding service, innovative technology, and commitment to sustainability. Whether you’re a homeowner looking to cut energy bills or a business aiming to reduce your carbon footprint, this guide provides the insights you need to make an informed choice.
Why Should Londoners Consider Switching to Solar Energy?
London, a bustling metropolitan hub, is not often associated with sunny skies, but the city’s solar potential should not be underestimated. Modern solar panels are highly efficient, even in cloudy conditions, and offer a compelling way for Londoners to reduce their energy costs and carbon footprint.
Switching to solar energy in London can dramatically cut electricity bills, protect against rising energy costs, and contribute to the city’s sustainability goals. Beyond financial benefits, adopting solar power helps reduce dependence on fossil fuels, supporting a cleaner, greener future for the city.
Moreover, the UK government’s Smart Export Guarantee (SEG) allows solar panel owners to sell unused electricity back to the grid, offering another layer of financial return on their investment.
How to Choose the Best Solar Energy Company in London?
Selecting the right solar energy provider is key to unlocking the full potential of your solar investment. Here are key factors Londoners should consider:
Experience and Reputation
Look for companies with a proven track record. Firms like Solarcentury and Solarsense, with decades of experience, offer reassurance through their established presence. Checking customer reviews, industry awards, and case studies can give a deeper insight into a company’s reliability and service quality.
Certifications and Accreditations
Reliable solar companies should have certifications from bodies like MCS (Microgeneration Certification Scheme) and membership with organisations like HIES (Home Insulation and Energy Systems). These certifications indicate adherence to industry best practices and provide consumer protection benefits such as warranties and deposit safeguards.
Quality of Equipment
Not all solar panels are created equal. Premium brands such as LG, SunPower, and Panasonic offer higher efficiency and longer warranties. A good solar company will offer top-tier products and explain the pros and cons of different options based on your specific energy needs.
After-Sales Service
Solar energy is a long-term investment. It’s crucial to partner with a company that provides ongoing maintenance, monitoring services, and quick response to any issues post-installation. Companies like Joju Solar and SunGift Solar are known for their excellent customer support after project completion.
Cost and Financing Options
While it might be tempting to go with the cheapest quote, consider the value over the system’s lifetime. Some companies, such as Green Energy Together | Cost-effective solar paired with intelligent technology | Over a decade of community-driven energy solutions.
Customisation and Consultation
Every property has unique energy requirements and architectural limitations. The best solar companies will carry out a detailed consultation, including site surveys and energy assessments, before recommending a tailored system design.
What Are the Top 10 Solar Energy Companies in London?
1. Solarcentury – “Pioneering Global Solar Excellence”
With over 20 years of pioneering experience, Solarcentury leads the solar sector in delivering cutting-edge solutions for both residential and commercial clients. Their unwavering commitment to sustainability drives every project across the UK and beyond.
Focus
Innovative solar PV systems and storage solutions for commercial and residential sectors.
Ideal For
Large businesses and eco-conscious homeowners seeking premium, scalable solar installations.
Pricing: Custom quotes based on project size.
- Website: solarcenturyafrica.com
- Phone: +44 (0) 20 7938 0500
- Address: 12-14 Ansdell Street, London W8 5BN – UK
- Email: enquiries@solarcenturyafrica.com
Review: ★★★★★
“Solarcentury’s service was seamless — from design to installation, everything was handled professionally.”
2. Spirit Energy – “Energy Solutions Tailored to You”
Spirit Energy provides custom-designed solar PV and battery systems for homes and businesses across London. They are lauded for their customer-focused approach and clear, transparent communication throughout the installation process.
Strength
Personalised solar energy and battery storage solutions.
Recommended For
Homeowners and SMEs looking for reliable solar installations with integrated storage options.
Pricing: Systems typically start around £5,000.
- Website: https://www.spirit-energy.com/
- Phone: +44 118 951 4490
- Address: Rivermill House 152 Grosvenor Road London, SW1V 3JL United Kingdom
- Email: info@spiritenergy.co.uk
Review: ★★★★☆
“We loved how transparent Spirit Energy was about costs and timelines — a rare find in the industry.”
3. Joju Solar – “Solar Power with a Social Mission”
Joju Solar blends advanced technical know-how with a dedication to empowering local communities through renewable energy initiatives. They not only install solar panels but also promote broader sustainability efforts, including EV charging integration.
Expertise
Residential and commercial solar PV systems with EV charger installations.
Best Suited For
Environmentally conscious clients who value local impact and sustainable energy.
Pricing: Mid-range; tailored quotes.
- Website: jojusolar.co.uk
- Phone: +44 0207 697 1000
- Address: 8 Autumn Yard, Autumn St, London E3 2TT, United Kingdom
- Email: info@joju.co.uk
Review: ★★★★★
“Joju Solar impressed us with their expertise and enthusiasm, guiding us seamlessly through the entire installation journey.”
4. Eco Energy Environment – “Empowering a Greener Future”
Eco Energy Environment simplifies the solar transition with a focus on premium technology and consumer education. Their bespoke energy solutions cater to households seeking efficient and durable solar setups.
Specialisation
Premium solar panels with customer-centric energy solutions.
Tailored For
Families and individuals aiming for top-tier technology and flexible payment plans.
Pricing: From £4,500 upwards depending on system size.
- Website: eeelimited.com
- Phone: +44 20 8050 5203
- Address: 1-2 Hatfields, London SE1 9PG, United Kingdom
- Email: hello@ecoenergyenvironment.com
Review: ★★★★☆
“The team took the time to explain everything clearly — we felt confident every step of the way.”
5. Solarsense – “Engineering Your Energy Freedom”
Solarsense has been delivering trusted solar solutions for over 25 years. Renowned for their personalised approach and award-winning solutions, they rank among London’s most trusted names in renewable energy.
Advantage
Comprehensive design, installation, and maintenance of solar systems.
Preferred For
Ideal for anyone looking for dependable, high-performing solar systems designed to last.
Pricing: Custom based on installation scale.
- Website: solarsense-uk.com
- Phone: +44 0333 772 1800
- Address: Unit 1A, Tweed Road Industrial Estate, Clevedon, Bristol BS21 6RR, United Kingdom
- Email: info@solarsense-uk.com
Review: ★★★★★
“We’ve seen significant savings since Solarsense installed our panels — excellent service from start to finish!”
6. Green Energy Together – “Affordable Solar for Every Home”
Green Energy Together (GET) works towards making solar power affordable and accessible. Their emphasis on community solar projects and smart technology helps clients monitor and manage energy consumption efficiently.
Highlight
Community solar initiatives with smart solar monitoring systems.
Recommended For
Homeowners looking for affordable, smart-enabled solar systems.
Pricing: Highly competitive; project-based estimates.
- Website: get-uk.co.uk
- Phone: +44 01920 452 175
- Address: Peerglow Centre, Marsh Lane, Ware, Hertfordshire SG12 9QL
- Email: enquiries@get-uk.com
Review: ★★★★☆
“Green Energy Together made solar possible within our budget — couldn’t be happier!”
7. SunGift Solar – “Custom Solar Systems with a Personal Touch”
SunGift Solar specialises in bespoke solar installations, tailoring every system to the customer’s needs. They offer a smooth, customer-friendly process backed by premium products.
Edge
Bespoke solar design and tailored consultation services.
Designed For
Homeowners wanting a fully customised, high-quality solar installation.
Pricing: Moderate to premium, based on customisation.
- Website: sungiftsolar.co.uk
- Phone: +44 01392 213912
- Address: SunGift Solar, K S House, Pinhoe Trading Estate, Venny Bridge, Pinhoe, Exeter EX4 8JN
- Email: info@sungiftsolar.co.uk
Review: ★★★★★
“Their team made sure our system not only worked great but looked great too — very impressed!”
8. Geo Green Power – “Powering Your Sustainable Future”
Geo Green Power provides a complete range of renewable energy systems, including solar PV, biomass boilers, and heat pumps. They deliver holistic energy solutions for both homes and businesses.
Core
Integrated renewable energy services for complete energy independence.
Well-Suited For
Clients seeking a multi-solution renewable energy strategy.
Pricing: Project-specific; varies with scale and complexity.
- Website: geogreenpower.com
- Phone: +44 (0) 1509 880 199
- Address: Bradmore Business Park, Loughborough Road, Bunny, Nottingham NG11 6QA
- Email: info@geogreenpower.com
Review: ★★★★☆
“From consultation to installation, Geo Green Power was professional and efficient — highly recommend!”
9. HIES – “Protecting Consumers, Empowering Installers”
While not an installer, HIES ensures that customers are protected by certifying reputable solar companies. They provide deposit protection and insurance-backed guarantees, raising the bar for solar service standards.
Service Area
Certification and consumer protection for solar energy services.
Trusted By
Homeowners wanting reassurance and protection when hiring solar companies.
Pricing: Membership-based (for companies).
- Website: hiesscheme.org.uk
- Phone: +44 345 618 3838
- Address: Solutions House, Chorley Business & Technology Centre, Euxton Lane, Chorley, PR7 6TE
- Email: info@hiesscheme.org.uk
Review: ★★★★★
“HIES gave us peace of mind — knowing our deposit was protected made a big difference.”
10. 1 Vision Solar – “Bright Ideas for a Greener Tomorrow”
1 Vision Solar offers cutting-edge solar technology combined with strong customer support. They are known for delivering high-performance systems backed by excellent aftercare services.
Edge
Advanced solar technologies with emphasis on customer support.
Suitable For
Clients who value both performance and long-term system care.
Pricing: Mid-range to premium, depending on requirements.
- Website: www.1visionsolar.co.uk
- Phone: +44 0800 731 45 38
- Address: 12 Guild street, London NW1 3TN
- Email: info@1visionsolar.co.uk
Review: ★★★★☆
“Solar Plants delivered exceptional service throughout, leaving us thoroughly impressed with the entire experience.”
What Are the Key Benefits of Installing Solar Panels in London?
London residents and businesses can reap several benefits from installing solar panels, despite the city’s variable weather. Advancements in photovoltaic (PV) technology have made it possible for solar systems to generate significant energy even under overcast skies.
Reduced Energy Bills
A primary advantage of solar adoption is the significant decrease in monthly electricity expenses.. Solar energy can offset a significant portion of household or business electricity consumption, leading to substantial cost savings over time.
Earnings Through Smart Export Guarantee
Through the Smart Export Guarantee (SEG), solar panel owners in the UK can profit by exporting surplus energy to the national grid. This incentive enhances the financial viability of solar investments.
Energy Independence
With the volatility of global energy prices, solar panels provide a measure of energy independence. Paired with battery storage systems, homeowners can store surplus energy for later use, reducing reliance on the national grid.
Environmental Impact
Switching to solar energy reduces carbon emissions, contributing to cleaner air and a healthier environment. An average solar panel system can offset over one tonne of carbon dioxide annually, making a significant difference over its lifespan.
Increase in Property Value
Properties equipped with solar energy systems are often more attractive to buyers and can command a higher market value. Homes equipped with renewable energy systems often attract environmentally conscious buyers, boosting their market appeal.
What Is the Process of Installing Solar Panels in London?
Familiarising yourself with the solar installation process can help manage expectations and facilitate a hassle-free experience.
Initial Consultation and Site Survey
The process begins with an energy consultation where the company assesses your electricity usage, roof space, and orientation. An initial site assessment evaluates your property’s suitability and helps in crafting an optimal solar system design.
System Design and Quotation
Following the survey, a tailored solar solution is developed to meet your specific energy requirements. You’ll receive a detailed quotation outlining costs, projected energy savings, and potential earnings from schemes like SEG.
Permits and Approvals
Typically, solar panel installations fall under permitted development rights in the UK, eliminating the need for special approval. However, if the property is listed or in a conservation area, planning permission may be required.
Installation
The installation itself typically takes one to three days, depending on the size and complexity of the system. Certified technicians handle the panel mounting, inverter setup, and connection to the national grid to ensure a seamless operation.
Commissioning and Testing
After installation, the system is tested and commissioned to ensure it operates optimally. You will also be guided on how to monitor your system’s performance through apps or monitoring portals.
Post-Installation Support
Reputable companies offer maintenance packages and warranties that cover performance and equipment faults. Annual servicing ensures that the system continues to operate at peak efficiency.
Comparison of Top Solar Energy Companies in London
| Company | Key Services | Years in Business | Unique Value |
| Solarcentury | Large-scale solar, storage | 25+ years | Global expertise and innovation |
| Spirit Energy | Residential/commercial PV, batteries | 15+ years | Transparent service, battery focus |
| Joju Solar | Solar PV, EV charging | 18+ years | Community projects, sustainability |
| Eco Energy Environment | Solar PV, audits | 10+ years | Education-driven, premium tech |
| Solarsense | Bespoke solar installations | 25+ years | Award-winning, experienced |
| Green Energy Together | Affordable solar, smart solutions | 12+ years | Community-focused, smart systems |
| SunGift Solar | Custom solar systems | 17+ years | Bespoke design, quality focus |
| Geo Green Power | Solar PV, heat pumps, biomass | 15+ years | Holistic sustainability solutions |
| HIES | Consumer protection, certification | N/A | Customer-focused protection |
| Solar Plants | Residential/commercial solar | 20+ years | Trusted customer-centric service |
FAQs About Solar Energy Companies in London
What is the average cost of installing solar panels in London?
The cost typically ranges between £4,000 and £8,000 depending on system size and complexity.
How long do solar panels last?
Solar panels generally have a lifespan of 25 to 30 years, with many still producing significant energy beyond that timeframe.
Can solar panels work efficiently in London’s climate?
Yes, modern photovoltaic technology allows solar panels to function efficiently even in cloudy conditions, making them a viable choice for London’s weather.
Are there any financial incentives for installing solar panels in London?
Yes, the Smart Export Guarantee (SEG) offers financial rewards for exporting surplus electricity back to the grid.
Do I need planning permission for solar panels in London?
Most domestic solar panel installations are permitted developments. For listed buildings or properties within conservation areas, obtaining planning permission may be required before installation.
Is it worth investing in a solar battery with my solar system?
Adding a solar battery increases energy independence, allowing you to store excess power for use when the sun isn’t shining, reducing grid reliance and enhancing savings.
What maintenance do solar panels require?
Solar panels require minimal maintenance. Occasional cleaning and periodic professional inspections ensure optimal performance throughout their lifespan.