If you’ve ever looked into getting solar panels, chances are you’ve stumbled across some baffling terms: inverter efficiency, PV monitoring, net metering, kWh, DC to AC conversion… the list goes on. It’s enough to make your head spin before you’ve even looked at a quote.
But solar doesn’t have to be complicated. Once you get to grips with a few key terms, the whole process becomes much clearer. Whether you’re just starting your solar journey or trying to understand your system’s performance, this guide will break down the jargon in simple terms and link it to real product options from Sheerwater Solar.
In this guide, we’ll break down these key solar terms:
Let’s start with the basics. PV stands for photovoltaic, which means converting sunlight into electricity. A PV system refers to your full solar panel setup, including panels, inverter, wiring and optional extras like a battery.
So when you hear terms like PV array or PV installation, they all relate to your entire solar energy system.
Real-world example: Canadian Solar panels are part of high-performance PV systems designed for both homes and commercial properties.
AC (Alternating Current) and DC (Direct Current) are the two main types of electrical power. Solar panels generate direct current (DC) electricity, which flows in one constant direction. While that’s great for storing energy in batteries, it’s not the type of electricity your home uses.
Most household appliances and the national grid run on alternating current (AC), where the flow of electricity reverses direction many times per second. To make the solar energy usable, it passes through an inverter, which efficiently converts DC into AC power ready for your lights, appliances, and devices
The inverter is the component that performs that conversion. It transforms DC electricity into AC electricity. It’s a crucial part of your setup.
There are several types of inverters, such as string inverters, microinverters and hybrid inverters. You don’t need to get too technical, but it helps to know that a reliable inverter will keep your system running efficiently.
Example: JA Solar’s household system includes an advanced inverter as standard, offering dependable performance and smart energy conversion.
These terms often get confused, but they’re not the same:
If you run a 1kW appliance for one hour, you have consumed 1kWh of electricity.
The mounting system secures your panels to the roof (or the ground) and affects both performance and appearance.
Three common types include:
Real-world examples:
Viridian Solar offers an in-roof system with invisible clamps and push-fit connections for quick installation and a clean finish.
GSE’s In-Roof System, designed in France, is fully waterproof and compatible with many roof types, providing a cost-effective solution with strong visual appeal.
A battery system lets you store any excess electricity your panels generate during the day, so you can use it in the evening or when production is low. While not essential for a solar PV system, many homeowners find it a worthwhile upgrade.
The batteries are usually wall-mounted, taking up roughly the space of a medium-sized suitcase, so they can fit neatly in a garage, utility room, or even outside in a weatherproof enclosure. Adding storage reduces your reliance on the grid, increases your savings, and gives you more control over when and how you use your solar energy.
Net metering means any excess electricity you produce can be exported to the grid. You then earn credit for that surplus, which can reduce your future energy costs.
Availability depends on your energy provider, but where supported, it’s a valuable way to maximise your return.
Example: JA Solar’s system includes a dedicated meter box, making it easy to track exported energy and take full advantage of net metering.
Most modern systems include monitoring tools that show how much energy you’re producing, using, storing or exporting. This can be done through an app or online portal.
This visibility helps you optimise usage and spot opportunities to reduce waste.
Example: Jinko panels are known for long-term performance and low degradation, giving you consistent, reliable output you can track with confidence.
While often mentioned in discussions about window and door efficiency, U-values can also apply to solar components such as mounting systems.
A lower U-value means better thermal insulation. If your solar installation is integrated into the roof, this could help reduce energy loss in your home.
Example: Both Viridian and GSE in-roof systems contribute to improved thermal performance compared to standard roof-mounted options.
Solar incentives are schemes from energy companies or government bodies that reward homeowners for generating clean energy. These include things like the Smart Export Guarantee.
While availability changes over time, incentives aim to make renewable energy more affordable and appealing.
Example: Canadian Solar systems pair well with these schemes, helping homeowners get better long-term value from their investment.
You don’t need to be a solar expert to make smart energy decisions. A basic understanding of these terms will help you:
At Sheerwater Solar, we believe in making things simple. We offer only carefully selected, high-performing panel options including JA Solar, Jinko, Viridian, GSE and Canadian Solar. Every system we design is tailored to your home and your goals.
No confusion. No pressure. Just honest advice and quality systems that work.
If you’re unsure which solar setup is right for your home, we’re here to help. Get in touch and our team will guide you through your options.
At Sheerwater Solar, we are committed to providing cutting-edge solutions for your solar energy needs. We proudly incorporate SolarEdge technologies in our solar photovoltaic (PV) installations where they fit the best. SolarEdge offers an advanced range of products including optimisers,...
Reaching out to Sheerwater Solar is straightforward and hassle-free. Whether you’re interested in solar panels for your home or business in Woking, we’re here to guide you every step of the way. You can contact us directly by calling 01932 627 555 or by sending an email to info@sheerwatersolar.co.uk.
Alternatively, fill in our online form for a swift response.
What happens next?
In most cases, we’ll need to conduct an on-site survey at your property to assess the feasibility and provide you with a tailored quote. This visit allows us to understand your specific needs and explore the potential for renewable energy solutions. Following the survey, we’ll discuss the best options for integrating solar energy into your property, including detailed costs and the installation process.
We’re excited to assist you on your journey to renewable energy and look forward to hearing from you.