Photovoltaic Panels vs Solar Panels: What’s the Difference and Which Should You Choose?
Green energy is the way forward for many, offering both sustainability benefits and cost reductions that can improve your standard of living. Harnessing the power of abundant solar energy – even in the cloudy skies of the UK – is one of the most common methods of implementing green solutions in residential environments.
If you’ve been looking at getting a solar energy solution for your home, you might have come across the terms “Photovoltaic Panels” and “Solar Panels” and are stuck wondering what the difference is. At Swift Renewables, we keep things clear when it comes to our energy solutions, and in this article we’ll help you understand the nuances between these common terms and learn what the right solution for you might be.
What Does Photovoltaic Actually Mean?
Photovoltaics, commonly abbreviated to PV, describe the process of converting light into electricity using semiconducting materials.
In practical terms, photovoltaic technology:
- Converts sunlight directly into usable electricity
- Is commonly referred to as PV in system specifications
- Provides a clean, renewable source of power with no emissions during operation
The photovoltaic effect is the scientific principle behind modern solar electricity generation. When sunlight hits specially designed semiconductor materials, it excites electrons and creates an electric current. This current can then be used to power your home or stored for later use.
What do Photovoltaic (PV) Panels Do?
Photovoltaic panels are made up of multiple PV cells working together to generate electricity. Once installed on a roof or ground-mounted frame, they capture daylight and convert it into direct current (DC) electricity.
In residential settings, PV panels:
- Convert natural light into electrical energy
- Power appliances, lighting, and heating systems
- Reduce reliance on grid electricity
- Produce zero carbon emissions once installed
The electricity generated can either be used immediately in your home or stored in a battery system for later use. With a properly designed system, homeowners can significantly reduce their energy bills and protect themselves against rising electricity costs.
Find out how panels and storage work together to form a complete home system >
The Standard Definition of Solar Panels
Technically speaking, a solar panel is a device that converts sunlight into energy. In most residential contexts, when people say “solar panels”, they are referring to photovoltaic panels.
The reason for this is simple: the PV cells inside the panel are often called solar cells. As a result, the entire unit is commonly referred to as a solar panel, solar electric panel, or PV panel.
In most home installations:
- Solar panels and PV panels mean the same thing
- The panels use photovoltaic cells to generate electricity
- The terminology varies depending on industry or marketing preference
Where the distinction becomes important is when comparing solar PV to other solar technologies, such as solar thermal systems.
Solar PV Panels vs Solar Thermal Panels
Although the terms photovoltaic and solar panels are often interchangeable, solar PV panels are different from solar thermal panels.
The key differences include:
- Solar thermal panels convert sunlight into heat, typically to provide hot water
- Solar PV panels convert sunlight into electricity
- PV-generated electricity can power appliances, charge batteries, or even run immersion heaters
Solar thermal systems focus solely on heating water. They can be very efficient for domestic hot water during sunnier months. However, solar PV panels are more versatile, and the electricity they generate can power your entire home, charge electric vehicles, support heat pumps, or be stored in batteries.
Which Type of Solar Panels do Homes Usually Install?
In the UK, most homes opt for solar PV panels. Their flexibility and long-term savings potential make them a popular choice.
Homeowners typically choose PV systems because:
- They reduce overall electricity bills
- Excess energy can be stored or exported to the grid
- They integrate easily with battery storage
- They support wider electrification, including EV charging and heat pumps
Solar thermal panels are still used, particularly where hot water demand is high. Some properties benefit from a hybrid approach, utilising both PV for electricity and thermal panels for water heating.
Choosing the right system depends on your property layout, roof orientation, energy consumption, and future plans. Working with experienced installers ensures the design matches your needs rather than offering a one-size-fits-all solution.
Which System is Right for Your Home?
For most homeowners, solar PV panels offer the greatest long-term value. A standard residential system can generate several kilowatts of power, depending on roof space and panel efficiency.
Key considerations include:
- Your current and projected energy usage
- Roof size, pitch, and orientation
- Whether you want battery storage
- Potential to export excess energy back to the grid
If your system generates more electricity than you use, the surplus can be stored in a battery or exported for payment under available schemes. Battery systems are especially useful during evenings or in winter when daylight hours are shorter.
At Swift Renewables, we install integrated storage solutions across the region, including dedicated battery storage in North Somerset, helping homeowners maximise self-consumption and reduce reliance on grid power.
Using PV Panels to Power Heat Pumps & Batteries
Modern homes are increasingly pairing solar PV with other renewable technologies.
Air source and ground source heat pumps require a consistent electricity supply to operate efficiently. By generating your own power, you can offset the running costs of these systems and reduce your carbon footprint further.
A well-designed setup allows you to:
- Use solar electricity to power a heat pump
- Store excess energy in a battery
- Maintain more predictable monthly energy costs
- Improve overall system efficiency
Battery storage ensures energy generated during the day can be used at night or during periods of low sunlight. This creates a more stable and resilient home energy system throughout the year.
Learn more about planning rules for heat pumps >
Common Myths About Solar Panels
Do solar panels require direct sunlight?
No. While direct sunlight increases output, solar PV panels still generate electricity in indirect or diffuse light. This means they continue to produce energy on cloudy or overcast days.
To improve year-round performance:
- Pair panels with a battery to store excess summer energy
- Ensure correct panel orientation and tilt
- Install a system sized appropriately for UK conditions
Are solar panels expensive?
Installation costs vary depending on system size and property type. However, most residential systems pay for themselves within 8–12 years.
Additional points to consider:
- Panels typically last 25 years or more
- Maintenance requirements are minimal
- Long-term savings often outweigh upfront costs
- Finance options are available to spread the investment
Over time, the reduction in electricity bills makes solar one of the most financially attractive renewable technologies for homeowners.
Is solar panel installation a complicated process?
In most cases, installation takes one to two days. Certified engineers complete the work efficiently, with minimal disruption to your daily routine. Scaffolding is temporary, and systems are tested and commissioned before handover.
Do solar panels require planning permission?
For the majority of residential properties, solar panels fall under permitted development rights. This means planning permission is not usually required.
Exceptions can include:
- Listed buildings
- Properties in conservation areas
- Unusual structural circumstances
Your installer will also liaise with the Distribution Network Operator (DNO) to ensure your system is safely connected to the grid.
Get Advice on a Solar PV System for Your Home with Swift Renewables
While there might not be much difference between photovoltaic panels and solar panels, there is a big difference when it comes to choosing an installation partner.
At Swift Renewables, we aim to give all our customers an impeccable experience when it comes to implementing green energy solutions like solar PV systems. Enhance your property with clean, renewable energy that cuts costs and supports the environment. Get a quote today.
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