Tethys Energy – 5 star on Which? Trusted Trader

JasonReviews Leave a Comment

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 …

Flat Roof 3 Van Der Valk Bracknell Campbell - Tethys Energy

Can I fit solar PV on a flat roof with skylights?

JasonMounting Systems Leave a Comment

Many of our customers would like to put solar PV on their flat roof extensions. Most come with large skylights or can be awkward in shape. When designing a flat roof PV system, what do you need to make it work well? You can install solar panels around the skylights or any “roof furniture” such as vents, chimneys or aerials, …

With solar batteries now at 0% VAT – Will you invest in energy storage?

JasonBattery Storage Leave a Comment

Since 1st February 2024, the VAT on solar batteries was reduced to 0%. This measure was introduced following the previous rate of 5% VAT. The zero rated VAT on solar batteries will be available until 2027 at which point it will then revert to the 5% rate of VAT. Savings with Solar Batteries This government measure has brought a surge …

After 1 - Tethys Energy

Adding a battery to existing batteries

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Some customers live with their battery system for a year or two, then, using the monitoring provided come to the conclusion that it would make sense to increase their existing storage capacity by adding a battery. Depending on the brand of the battery, adding capacity can either be very straightforward or very difficult, including requiring permission from the DNO to …

Solar PV panels on a slate roof - Tethys Energy

Solar PV panels on a slate roof

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Installing solar PV panels on slate roofs can be tricky. Slate is quite different from other roof coverings such as clay or concrete tiles. Slates are by their nature very thin and quite brittle. They are ‘double lapped’ meaning that each row of tiles is only fully weather proofed once the 2 rows above have been fitted. This can provide …

What is a G99 Application?

JasonLatest Leave a Comment

Applying for a G99? What exactly is that and will you need one? The District Network Operator (DNO) for each area of the country is responsible for the property’s energy supply and management of it’s export. Sometimes, there are multiple properties in one area that may be exporting power to the grid at the same time. This might result in …

10 REC Panel PV Modules with 9.5kWh battery storage

JasonProjects Leave a Comment

We installed a 4.05kWp PV system which consists of 10 x REC black Twin Peak monocrystalline 405W solar modules with Solar Edge inverter. The battery system is made up of a GivEnergy Charge controller with GivEnergy 9.5kWh battery. REC are a Norwegian company which make high quality solar PV modules. They have manufacturing plants in Norway and Singapore. The Norwegian …

Self Consumption

45 Panel Solar PV with 20kWh Battery Storage Install

JasonProjects, Battery Storage Leave a Comment

This large domestic property near Henley had multiple options for placement of the solar PV panels. Solar PV panels could be installed on south, east and west facing roofs allowing for a larger PV array.

MCS Certified

3 reasons to choose an MCS Accredited installer for Solar PV…

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When choosing an installer for Solar PV, its worth finding out if your installer is MCS accredited. Some of the benefits to choosing an MCS accredited installer: The Smart Export Guarantee (SEG) is a government obligation for larger suppliers to offer an export tariff that pays customers for excess electricity that they send back to the grid from renewable technologies such as solar panels. …