Our balcony solar systems
Flexible Solar Panel 180W
Vault 1.92 kWh Home Battery | Hoymiles HiBattery 1920 AC
Storm 360W Flexible Plug-In Solar Kit
Storm 710W Flexible Plug-In Solar Kit
Storm Plus 360W Plug-In Solar Kit with Battery
Storm Plus 710W Plug-In Solar Kit with Battery
Balcony solar kits comparison
Storm 360W | Storm 710W | Storm Plus (with battery) | Vault Battery 1920W | |
|---|---|---|---|---|
| Solar output | 360W | 710W | 360W or 710W | Works with or without solar |
| Battery | Optional | Optional | ||
| Best for | Small balconies and first-time users | Higher daytime usage, larger balconies | Evening consumption and energy independence | Smart tariff users and peak time shifting |
| Key features | Lightweight flexible panels, fast DIY setup, app monitoring | High generation, compact four panel design, smart tracking | Integrated battery, daytime storage, reduced grid reliance | Modular expansion, intelligent energy management |
How our balcony solar systems work
Capture daylight
Solar panels capture daylight from your balcony and produce clean DC energy.
Convert to AC
The microinverter converts DC energy into safe and usable AC electricity.
Plug in
The system plugs into a standard UK socket through a fused spur.
Use or store
Your home uses the generated energy instantly and any surplus can feed into a battery or the grid.
Why choose Thunder
Balcony solar panels installation guide
Step-by-step balcony solar setup
Clear instructions on panel positioning, strap fastening and microinverter placement for a safe and simple installation.
Placement tips for maximum output
Choose the sunniest location and mount panels horizontally or vertically to maximise balcony solar performance.
Safe mounting and cable handling
Secure panels properly and follow the correct connection order for full UK safety compliance.
Weather protection and long-term care
Keep your system stable year round with proper strap tensioning, cable shielding and annual visual checks.
Unbox the future of home solar
Solar panels without a roof? Here's how
Balcony solar FAQs
Frequently asked questions
Legality, output, renting and what's in the box.
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A balcony solar system lets you generate renewable electricity from your balcony using plug-and-play solar panels and a microinverter.
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Yes, balcony solar panels are legal in the UK and ideal for apartments or homes without roof space.
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Depending on the system size (300W to 1,000W), balcony panels can cover 20% to 30% of a small household's daily electricity use.
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Yes, they still generate electricity in diffuse light conditions, though output will be reduced.
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In most cases, no. Balcony solar kits are treated as portable appliances rather than structural installations.
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Yes. They require no permanent fixtures and can be easily moved if you relocate.
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Panels, microinverter, plug cable, mounting hardware, and optional battery storage.
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Yes. Our balcony solar kits are modular and compatible with Thunder Energy battery systems.
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Our systems are designed for DIY installation if you are a competent installer. Mount it, plug in and start generating. Professional installation is available across Greater London if you prefer.
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All balcony solar systems come with a standard 2-year panel warranty.
No questions match your search.
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Still have a question?
Our UK team is happy to help with anything from a feasibility check to DNO paperwork.
Contact usWhat our customers say
Good customer care
I bought a rigid pv panel, floor mount and Uk mains cable to micro inverter lead. All were delivered very quickly. Support from Hannah has been a stand-out part of the customer experience: helpful, responsive and no hard sales push.
Storm Plus 360W Solar Kit with Battery - Excelent Package System
The system is now installed and working well. At this stage it is largely a matter of fine-tuning the battery settings to suit the flat’s actual usage pattern.
Hoymiles microinverter
Ordered a microinverter and delivered 2 days later. Amazing service. Easy to connect and set up after an account was set up for me. Amazing service from Hannah. Would highly recommend.
Hoymiles micro inverter
Supplied micro inverter. Arrived quickly. I had a few issues connecting it but Thunder were so helpful via WhatsApp - really went the extra mile to make sure I was happy - highly recommended company.
Got Storm 360W for our balcony and it…
Got Storm 360W for our balcony and it has worked brilliantly for us. Makes lots of sense to have this for us, as I’m WFH and has been a strong boost for energy saving for us.
Amazing Sevice
I have a big, south facing garden but our dormer means that traditional solar panels aren’t cost effective. I came across Thunder who offered an greats alternative… they quickly arranged and installed a 1.07kWp system together all for under £1000! Highly recommend Thunder!
A young team who helped us
A young team who helped us with the whole process - thanks Matt!
Very happy with our storm kit
We installed Storm 360W on our balcony with some small adjustments and have been very happy with it. Its been fun to see how much we electricity produce everyday!
Innovative and professional startup
I'm so glad to try Storm710W from this company. It significantly reduced my electricity costs, and the company was extremely helpful and professional. They're a successful, innovative startup that takes a very close interest in its customers.
Good customer care
I bought a rigid pv panel, floor mount and Uk mains cable to micro inverter lead. All were delivered very quickly. Support from Hannah has been a stand-out part of the customer experience: helpful, responsive and no hard sales push.
Storm Plus 360W Solar Kit with Battery - Excelent Package System
The system is now installed and working well. At this stage it is largely a matter of fine-tuning the battery settings to suit the flat’s actual usage pattern.
Hoymiles microinverter
Ordered a microinverter and delivered 2 days later. Amazing service. Easy to connect and set up after an account was set up for me. Amazing service from Hannah. Would highly recommend.
Hoymiles micro inverter
Supplied micro inverter. Arrived quickly. I had a few issues connecting it but Thunder were so helpful via WhatsApp - really went the extra mile to make sure I was happy - highly recommended company.
Got Storm 360W for our balcony and it…
Got Storm 360W for our balcony and it has worked brilliantly for us. Makes lots of sense to have this for us, as I’m WFH and has been a strong boost for energy saving for us.
Amazing Sevice
I have a big, south facing garden but our dormer means that traditional solar panels aren’t cost effective. I came across Thunder who offered an greats alternative… they quickly arranged and installed a 1.07kWp system together all for under £1000! Highly recommend Thunder!
A young team who helped us
A young team who helped us with the whole process - thanks Matt!
Very happy with our storm kit
We installed Storm 360W on our balcony with some small adjustments and have been very happy with it. Its been fun to see how much we electricity produce everyday!
Innovative and professional startup
I'm so glad to try Storm710W from this company. It significantly reduced my electricity costs, and the company was extremely helpful and professional. They're a successful, innovative startup that takes a very close interest in its customers.
Good customer care
I bought a rigid pv panel, floor mount and Uk mains cable to micro inverter lead. All were delivered very quickly. Support from Hannah has been a stand-out part of the customer experience: helpful, responsive and no hard sales push.
Storm Plus 360W Solar Kit with Battery - Excelent Package System
The system is now installed and working well. At this stage it is largely a matter of fine-tuning the battery settings to suit the flat’s actual usage pattern.
Hoymiles microinverter
Ordered a microinverter and delivered 2 days later. Amazing service. Easy to connect and set up after an account was set up for me. Amazing service from Hannah. Would highly recommend.
Hoymiles micro inverter
Supplied micro inverter. Arrived quickly. I had a few issues connecting it but Thunder were so helpful via WhatsApp - really went the extra mile to make sure I was happy - highly recommended company.
Got Storm 360W for our balcony and it…
Got Storm 360W for our balcony and it has worked brilliantly for us. Makes lots of sense to have this for us, as I’m WFH and has been a strong boost for energy saving for us.
Amazing Sevice
I have a big, south facing garden but our dormer means that traditional solar panels aren’t cost effective. I came across Thunder who offered an greats alternative… they quickly arranged and installed a 1.07kWp system together all for under £1000! Highly recommend Thunder!
A young team who helped us
A young team who helped us with the whole process - thanks Matt!
Very happy with our storm kit
We installed Storm 360W on our balcony with some small adjustments and have been very happy with it. Its been fun to see how much we electricity produce everyday!
Innovative and professional startup
I'm so glad to try Storm710W from this company. It significantly reduced my electricity costs, and the company was extremely helpful and professional. They're a successful, innovative startup that takes a very close interest in its customers.
Good customer care
I bought a rigid pv panel, floor mount and Uk mains cable to micro inverter lead. All were delivered very quickly. Support from Hannah has been a stand-out part of the customer experience: helpful, responsive and no hard sales push.
Storm Plus 360W Solar Kit with Battery - Excelent Package System
The system is now installed and working well. At this stage it is largely a matter of fine-tuning the battery settings to suit the flat’s actual usage pattern.
Hoymiles microinverter
Ordered a microinverter and delivered 2 days later. Amazing service. Easy to connect and set up after an account was set up for me. Amazing service from Hannah. Would highly recommend.
Hoymiles micro inverter
Supplied micro inverter. Arrived quickly. I had a few issues connecting it but Thunder were so helpful via WhatsApp - really went the extra mile to make sure I was happy - highly recommended company.
Got Storm 360W for our balcony and it…
Got Storm 360W for our balcony and it has worked brilliantly for us. Makes lots of sense to have this for us, as I’m WFH and has been a strong boost for energy saving for us.
Amazing Sevice
I have a big, south facing garden but our dormer means that traditional solar panels aren’t cost effective. I came across Thunder who offered an greats alternative… they quickly arranged and installed a 1.07kWp system together all for under £1000! Highly recommend Thunder!
A young team who helped us
A young team who helped us with the whole process - thanks Matt!
Very happy with our storm kit
We installed Storm 360W on our balcony with some small adjustments and have been very happy with it. Its been fun to see how much we electricity produce everyday!
Innovative and professional startup
I'm so glad to try Storm710W from this company. It significantly reduced my electricity costs, and the company was extremely helpful and professional. They're a successful, innovative startup that takes a very close interest in its customers.
Good customer care
I bought a rigid pv panel, floor mount and Uk mains cable to micro inverter lead. All were delivered very quickly. Support from Hannah has been a stand-out part of the customer experience: helpful, responsive and no hard sales push.
Storm Plus 360W Solar Kit with Battery - Excelent Package System
The system is now installed and working well. At this stage it is largely a matter of fine-tuning the battery settings to suit the flat’s actual usage pattern.
Hoymiles microinverter
Ordered a microinverter and delivered 2 days later. Amazing service. Easy to connect and set up after an account was set up for me. Amazing service from Hannah. Would highly recommend.
Hoymiles micro inverter
Supplied micro inverter. Arrived quickly. I had a few issues connecting it but Thunder were so helpful via WhatsApp - really went the extra mile to make sure I was happy - highly recommended company.
Got Storm 360W for our balcony and it…
Got Storm 360W for our balcony and it has worked brilliantly for us. Makes lots of sense to have this for us, as I’m WFH and has been a strong boost for energy saving for us.
Amazing Sevice
I have a big, south facing garden but our dormer means that traditional solar panels aren’t cost effective. I came across Thunder who offered an greats alternative… they quickly arranged and installed a 1.07kWp system together all for under £1000! Highly recommend Thunder!
A young team who helped us
A young team who helped us with the whole process - thanks Matt!
Very happy with our storm kit
We installed Storm 360W on our balcony with some small adjustments and have been very happy with it. Its been fun to see how much we electricity produce everyday!
Innovative and professional startup
I'm so glad to try Storm710W from this company. It significantly reduced my electricity costs, and the company was extremely helpful and professional. They're a successful, innovative startup that takes a very close interest in its customers.
Good customer care
I bought a rigid pv panel, floor mount and Uk mains cable to micro inverter lead. All were delivered very quickly. Support from Hannah has been a stand-out part of the customer experience: helpful, responsive and no hard sales push.
Storm Plus 360W Solar Kit with Battery - Excelent Package System
The system is now installed and working well. At this stage it is largely a matter of fine-tuning the battery settings to suit the flat’s actual usage pattern.
Hoymiles microinverter
Ordered a microinverter and delivered 2 days later. Amazing service. Easy to connect and set up after an account was set up for me. Amazing service from Hannah. Would highly recommend.
Hoymiles micro inverter
Supplied micro inverter. Arrived quickly. I had a few issues connecting it but Thunder were so helpful via WhatsApp - really went the extra mile to make sure I was happy - highly recommended company.
Got Storm 360W for our balcony and it…
Got Storm 360W for our balcony and it has worked brilliantly for us. Makes lots of sense to have this for us, as I’m WFH and has been a strong boost for energy saving for us.
Amazing Sevice
I have a big, south facing garden but our dormer means that traditional solar panels aren’t cost effective. I came across Thunder who offered an greats alternative… they quickly arranged and installed a 1.07kWp system together all for under £1000! Highly recommend Thunder!
A young team who helped us
A young team who helped us with the whole process - thanks Matt!
Very happy with our storm kit
We installed Storm 360W on our balcony with some small adjustments and have been very happy with it. Its been fun to see how much we electricity produce everyday!
Innovative and professional startup
I'm so glad to try Storm710W from this company. It significantly reduced my electricity costs, and the company was extremely helpful and professional. They're a successful, innovative startup that takes a very close interest in its customers.
How much could you save?
Enter your postcode and pick a kit. We'll estimate how much it would generate and what that's worth on your bill.
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Energy production
kWh / year
Potential savings
£ / year
Monthly production (kWh)
*Calculations are based on official solar radiation data from the European Commission's PVGIS database.
**Estimated production accounts for a 14% system loss and assumes a vertical panel angle (90° inclination).