Potential Engineering
How solar systems work
A solar system comprises of several major components, each critical to its normal function. See below for high level detail about these components, and their role in the wider solar system.

The Energy Source

Our sun, the most abundant source of natural energy known to mankind. At ground level, the available photon energy is around 960W per m^2. With an average panel efficiency, this means around 192W per m^2 is up for grabs.

The Solar Array

The solar array – the array captures the suns photons, inducing an electrical potential across the solar cells by leveraging the ‘photoelectric’ effect – an electrical current starts to flow.

The National Grid

This is where electrical energy is imported from the grid to service your property. It is also where any excess electrical energy that can’t be used is distributed . E.g. if there is no ESS system, or the ESS system is full. A well specified system will reduce your demand considerably and save you money on your bills.

Consumer unit

This is where all of your ‘final circuits’ terminate to the grid supply – sometimes referred to as the ‘fuse board’. We’ll need to connect your inverter to this with a new circuit to enable you to export electrical energy and provide constant power to the inverter.

Energy Storage System (ESS)

These sophisticated batteries play a pivotal role in capturing surplus energy during periods of low demand, ensuring it’s available for consumption during peak times or when solar production is diminished, such as in the evenings or at night.


The inverter converts DC electrical energy from the array into AC electrical energy. This is used in our homes and offices and is ‘matched’ to the grid supply provided by your energy supplier.

EV Charger

Energy diverted to your electric vehicle on demand or scheduled.

Find out more about our work

Answers to all your questions
How we work
What to expect, from start to finish
An overview of home EV charging methods

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