What is an Inverter, why you need one, and what you should consider

An inverter is an essential part of any home solar system, converting the direct current (DC) generated by solar panels into usable alternating current (AC).
Without an inverter, solar energy cannot power your home.


Inverters also control the flow of energy in an out of a battery storage system, as well as feeding excess generation back to the grid.


The inverter is often considered the 'brain' of the system, as they continually monitor and manage the flow of power through the system, as well as tracking and reporting energy production and consumption.

When choosing an inverter, consider system size, efficiency, smart features, guarantee and lifespan.
Leading brands like Fox, Ecoflow and Sigenergy offer robust, reliable options for UK households.


The size of inverter depends on your energy needs and the size of your solar array.
An under-sized inverter can limit you systems output, whereas an over-sized inverter can add unnecessary cost.
A 3.68kW inverter is generally suitable for smaller systems or homes with modest consumption.
A 5kW inverter suits larger households or properties with higher demand, more panels, or where battery storage is added.
Our Solar Experts will guide you through the selection process, ensuring that your inverter choice meets your needs.

All inverters available from Renewable Energy Service are supplied with a warranty period of at least 10 years.

The Renewable Energy Service offers a free solar design service. We will work with you to understand your property, energy usage, and long term objectives to help you to make an informed decision with confidence.