5 Stars on Which Trusted Trader

Tethys Energy – 5 star on Which? Trusted Trader

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What are customers say on Which? Trusted Trader Choosing Tethys Energy for your PV and Battery Install makes sense if you use Which? to find a trader that’s reliable, good value and comes highly recommended. We are a Trusted Trader on Which. In fact, 53 of our customers have left reviews to share their experience of our PV, Battery and …

Jason Fuiller Director Tethys Energy - Tethys Energy

What a Professional Solar PV Installer Actually Does (And Why It Matters)

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Most homeowners researching solar energy focus on panels, installation costs, and electricity generation. Far fewer think carefully about who actually installs the system. Yet the quality of installation determines long-term performance, electrical safety, compliance with building regulations, and eligibility for the Smart Export Guarantee. A professional solar PV installer does far more than mount panels on a roof. They manage …

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Photovoltaic Panels UK: How PV Technology Powers British Homes

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Over 1.5 million UK homes now have solar panels generating their own electricity from the sun. Installation costs have fallen significantly, grid electricity prices have risen sharply, and energy independence is increasingly seen as both financially and environmentally sensible. The UK Government’s Clean Power Plan targets around 47GW of solar power by 2030, and the Warm Homes Plan is set …

In roof complete Finchampstead Dosset - Tethys Energy

Solar Panel Installer Companies: Insider Tips for Finding Reliable Local Experts

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Choosing the right solar panel installer company is just as important as selecting the solar panels themselves. We recognise the challenge of finding reliable solar panel installers. It’s vital to guarantee your chosen local solar panel installer meets industry standards for a successful solar panel installation. Our region benefits from companies like Tethys Energy, a trusted local solar panel installer …

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AC-Coupled vs DC-Coupled Battery Storage Systems Explained

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Although understanding AC-coupled battery storage might seem complex at first, it’s an effective way to enhance existing solar systems. Our solar panels generate direct current (DC) electricity, which the solar inverter converts to alternating current (AC) for household use. An AC-coupled system allows us to add an ac coupled battery storage setup without replacing the existing solar inverter. Excess electricity …

GSE in roof system - Tethys Energy

Do I Need Planning Permission for Solar Panels? UK Rules and Exemptions

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Thinking about installing solar panels on your property? Most homeowners in Reading and Berkshire are pleased to discover that planning permission is rarely required. Thanks to permitted development rights, the majority of solar installations can proceed without formal planning approval. However, specific criteria apply, especially for listed buildings and properties in conservation areas. Key Takeaways What Is Planning Permission for …

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Solar PV Company in Reading and Berkshire: a Local Guide

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Choosing the right solar PV company in Reading and Berkshire is one of the most important decisions you’ll make when transitioning to renewable energy. With solar panel installations representing a significant investment—typically around £12,000 to £14,000 for a standard system with battery storage—you need a company that truly understands local needs and delivers reliable, cost-effective solutions. Key Takeaways What Is …

Mulberry House Marlow Common - Tethys Energy

Solar Panel Warranties Explained: What’s Covered and for How Long

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When you invest in solar panels, it’s important to ensure your investment is protected for the long term. Solar panel warranties act as a safety net, covering us against unexpected defects and guaranteeing reliable performance. But what exactly do these warranties cover, and for how long can we count on them? Understanding the nuances of product and performance warranties is …

Projected Long Term Savings of Solar Panels - Tethys Energy

How Many Solar Panels Do I Need? A Sizing Guide for UK Homes

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When considering solar panels for your UK home, it’s important to first understand how many you actually need. It’s not just about slapping panels on the roof and hoping for the best. Instead, it involves factors including energy consumption, panel efficiency, and roof orientation. By exploring these details, you can determine the right number of panels to power your home …

GSE in roof system - Tethys Energy

Solar panel installation in Reading

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A client had a recent rennovation project in Reading and we installed some Jinko solar panels using the GSE in-roof system. This design allows the solar panels to sit flush with the roof removing the need for a protective bird mesh and improving the overall aesthetic of the installation. The client was having their entire property re-roofed as well as …

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The Hidden Costs of DIY Solar Installation: Why Professional Expertise Saves Money Long-Term

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We’ve all thought about cutting costs by tackling projects ourselves, and installing solar panels might seem like the perfect opportunity. But DIY solar installations may initially appear budget-friendly, but hidden costs like permits, repairs, and inefficiencies often arise. The hidden reality is that DIY can often cost more in the long run. The solar panel installation process isn’t just about …