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Bolt Plus 530W Solar Kit with 4.02 kWh Battery

Bolt Plus 530W Solar Kit with 4.02 kWh Battery

Name: Bolt Plus 530W Solar Kit with 4.02 kWh Battery
Brand: Thunder Energy
Price: 1899.98 GBP
Availability: InStock

£1,899.98

Sale Sold out

Tax included. Shipping calculated at checkout.

Description

A straightforward way to start generating and storing your own electricity. Bolt Plus 530W combines one high-output rigid solar panel with Thunder Vault 4.02 kWh battery storage in a compact, hardwired system.

Suited to a sunny garden, patio or suitable small flat roof. Includes a low-profile mounting bracket and 5m DC cabling. Add smart metering or extra battery storage if needed.

Optional upgrades include the smart meter and additional battery storage. Professional installation by Thunder is available.

Smart Meter: None

None
Hoymiles HMeter-CT-S120-RW (+£94.99)

Battery Expansion: None

None
+4.02 kWh (+£999.99)
+8.04 kWh (+£1999.98)
+12.06 kWh (+£2999.97)

Not sure this is the right kit? Take the 4-question quiz

Product Description

A Small Solar Footprint. Proper Battery Storage.

Bolt Plus 530W is designed for homes that have space for one solar panel but want the flexibility of a substantial home battery. The 530W rigid panel generates electricity during daylight hours, while Thunder Vault stores energy for use later in the day.

At its centre is the Vault 4.02 kWh Solar Battery System, powered by the Hoymiles HiBattery 4020 X. The hybrid inverter is built into the battery, so the panel connects directly to a dedicated solar input without needing a separate microinverter.

Made for the Space You Have

With one panel, this is a practical introduction to solar and battery storage for a compact garden or suitably assessed flat roof. You can also charge Vault from the grid during cheaper tariff periods, giving the battery a role beyond solar generation.

The supplied low-profile bracket sets suit appropriately assessed flat surfaces. The battery is professionally hardwired to the home. This is a solar and battery system, not a standard UK 3-pin plug-in solar kit.

Features

530W Solar Generation
One high-output rigid solar panel for a manageable single-panel installation.

4.02 kWh Built-In Storage
Store daytime solar generation and draw on stored energy when needed.

No Separate Microinverter
The integrated hybrid inverter accepts the panel directly through an independent MPPT input.

Flexible Expansion
Add compatible Vault Stack modules for up to 16.08 kWh of storage; further compatible solar panels can also be added.

Smarter Control
Monitor the battery and solar input in S-Miles Home. Add the optional smart meter for household monitoring and zero-export control.

Backup for Essentials
Use the dedicated off-grid output for compatible appliances in a power cut, up to its 2,500W rating.

Low-Profile Mounting
Includes a flat-roof style mounting bracket for suitable ground-level and flat surfaces; ballast is required.

What's in the box

1 x Bolt 530W rigid solar panel
1 x Thunder Vault 4.02 kWh Solar Battery System (Hoymiles HiBattery 4020 X)
1 x low-profile flat-roof no-drill mounting bracket set
1 x 5m DC extension cable pair (one pair per panel)
AC connection cabling for professional electrical installation

Ballast weights and site-specific electrical installation materials are not included.

Technical specifications

Solar System

Total peak PV capacity
530Wp (1 x 530Wp)

Solar panel type
1 high-efficiency rigid solar panel

Inverter arrangement
Integrated hybrid inverter in Thunder Vault; no separate microinverter

Panel inputs used
1 of the 4 independent MPPT inputs

Solar mounting
1 low-profile flat-roof mounting bracket set

DC cabling
5m DC extension cable pair for each panel (1 pair)

Grid connection
Professional hardwired connection required

Vault 4.02 kWh Solar Battery System

Battery system
Thunder Vault 4.02 kWh Solar Battery System

Battery hardware
Hoymiles HiBattery 4020 X (HB-4020-X)

Storage capacity
4.02 kWh (4,020 Wh)

Expandable storage
Up to 16.08 kWh with three compatible Vault Stack modules

Battery chemistry
LiFePO4 (LFP)

Cycle life
At least 8,000 cycles at 70% state of health

Solar inputs
Four independent MPPT inputs; up to 1,000W per input

Maximum compatible PV input
4,000W in total

MPPT operating voltage
16-60V DC

Grid output
800W as supplied; up to 2,500W after eligible hardwired installation and Hoymiles authorisation

Backup output
Up to 2,500W via dedicated off-grid output

Battery charge/discharge rating
2,000W

Connectivity
2.4 GHz Wi-Fi and Bluetooth

Monitoring app
S-Miles Home

Battery protection
IP66

Battery dimensions
520 x 384 x 199 mm

Battery weight
42 kg

Battery warranty
10 years, subject to warranty terms

Installation / How It Works

1. Choose the installation position
Position the 1 rigid panel on a suitable garden surface, patio or flat roof. Confirm available space, structure, sunlight and local exposure before mounting.

2. Secure the solar panels
Install the supplied low-profile bracket sets with a mounting arrangement appropriate to the site. Suitable ballast is required and must be determined according to the installation location, wind exposure and supporting surface. Ballast is not included.

3. Connect the solar input
Run the supplied 5m DC cable pairs from the panels to the dedicated Vault PV inputs. Each panel has its own independent MPPT connection. All DC wiring must be specified and connected safely.

4. Complete the hardwired electrical installation
A qualified electrician must connect Vault to the household electrical installation, provide suitable protection, test and commission the system, and meet the applicable DNO requirements. The battery cannot be commissioned as a UK 3-pin plug-in solar kit.

5. Manage your energy
Use S-Miles Home to monitor system operation. The optional smart meter adds whole-home consumption data and zero-export control. Professional installation by Thunder is available via the existing installation service.

Grid output can be increased to a maximum of 2,500W only after eligible professional hardwiring and verification and authorisation by Hoymiles. The separate off-grid output is rated up to 2,500W for compatible connected appliances; it does not automatically back up household circuits.

Resources

Bolt solar kit datasheet

Bolt Plus 530W Solar Kit with 4.02 kWh Battery

£1,899.98

Frequently asked questions

Is this a plug-in solar kit?

No. Bolt Plus 530W is a hardwired solar and battery system. The battery must be connected to the household electrical installation by a qualified electrician.

Is one solar panel enough for a 4.02 kWh battery?

The single panel provides a modest solar input relative to the battery capacity. Actual charging depends on sunshine and household consumption. Vault can also charge from the grid on suitable time-of-use tariffs.

Can I add more panels later?

Yes. Vault supports four independent solar inputs and up to 4,000W of compatible PV input in total. Any future panels must be electrically compatible and properly installed.

Can the panels go on a garage or shed roof?

They can be considered for suitable flat roofs, subject to structural capacity, roof condition, wind exposure, access and a properly designed mounting arrangement.

Is ballast included?

Suitable ballast is required and must be determined according to the installation location, wind exposure and supporting surface. Ballast is not included.

Does the kit need an electrician?

Yes. This is not a standard UK 3-pin plug-in solar system. A qualified electrician must hardwire the battery, install the necessary protection and address applicable network requirements.

Can the battery supply up to 2,500W to the home?

The hardwired system may be configured for up to 2,500W on-grid output after a compliant professional installation and verification and authorisation by Hoymiles. This is not enabled automatically. The battery also has a dedicated off-grid output rated up to 2,500W.

Does Vault keep the whole house running during a power cut?

No. Standard installation does not energise household circuits during an outage. Compatible essentials can be connected to the battery’s dedicated off-grid output, within its output limits.

What does the optional smart meter do?

The optional HMeter-CT-S120-RW measures household electricity use and enables zero-export control. Solar input and battery status remain available in the app without it.

Can I add more battery storage?

Yes. Compatible Vault Stack modules add 4.02 kWh each. One, two or three additional modules provide total capacities of 8.04, 12.06 or 16.08 kWh.

Can Thunder install this system?

Yes. Thunder offers professional installation through the existing installation service, subject to site assessment, technical suitability and installer availability.

What if I only need a home battery?

The Thunder Vault 4.02 kWh Solar Battery System is also available separately, without solar panels.

Unbox the future of home solar

What can Bolt Plus 530W power?

Bolt Plus 530W generates about 625 kWh in its first year at a 40° tilt facing south. With the Vault 4.02 kWh battery taking any surplus, all of it is used in your home. That's enough to cover all of this:

The appliances below use about 610 kWh of the 625 kWh used at home each year

Fridge freezer

Running 24/7

365 days a year
About 139 kWh
LED TV

4 hours a day

1,460 hours a year
About 88 kWh
Washing machine

2 washes a week

104 washes a year
About 73 kWh
Dishwasher

2 cycles a week

104 cycles a year
About 104 kWh
Electric oven

1 hour a week

52 hours a year
About 52 kWh
Laptop

5 hours a day

1,825 hours a year
About 55 kWh
Kettle

2 boils a day

730 boils a year
About 73 kWh
LED bulb

5 hours a day

1,825 hours a year
About 16 kWh
Phone

2 charges a day

730 charges a year
About 11 kWh

Estimates based on typical UK appliance use and the year 1 figures in the financial projection on this page. Results depend on location, orientation, shading and your tariff.

20-year financial projection

0.53 kWp

System size

1 x Bolt Max 530W + Vault 4.02 kWh
625 kWh

Year 1 generation

London estimate
£469

Year 1 savings

Solar plus battery, at 30p/kWh peak
£12,426

20-year total savings

30p peak / 8p off-peak tariff

Year-by-year breakdown

Year	Elec. rate (p/kWh)	Generation (kWh)	Self-use (kWh)	Self-use savings (£)	Battery arbitrage (£)	Annual total (£)	Cumulative (£)
1	30.00	625	625	£187	£282	£469	£469
2	30.90	623	623	£192	£290	£483	£952
3	31.83	621	621	£198	£299	£496	£1,448
4	32.78	618	618	£203	£308	£511	£1,959
5	33.77	616	616	£208	£317	£525	£2,484
6	34.78	614	614	£214	£327	£540	£3,024
7	35.82	612	612	£219	£336	£556	£3,579
8	36.90	610	610	£225	£346	£571	£4,151
9	38.00	608	608	£231	£357	£588	£4,739
10	39.14	606	606	£237	£368	£605	£5,343
11	40.32	603	603	£243	£379	£622	£5,965
12	41.53	601	601	£250	£390	£640	£6,605
13	42.77	599	599	£256	£402	£658	£7,262
14	44.06	597	597	£263	£414	£677	£7,939
15	45.38	595	595	£270	£426	£696	£8,635
16	46.74	593	593	£277	£439	£716	£9,351
17	48.14	591	591	£284	£452	£736	£10,088
18	49.59	589	589	£292	£466	£758	£10,845
19	51.07	587	587	£300	£480	£779	£11,624
20	52.61	585	585	£308	£494	£801	£12,426

Methodology and assumptions

System: 1 x Bolt Max 530W solar module (N-type back-contact monocrystalline, dual glass bifacial, 23.5% efficiency), total 0.53 kWp, with a Thunder Vault 4.02 kWh solar battery. The Vault contains the system inverter, so no separate microinverter is required: the module connects to its own MPPT input.

Orientation: Modelled at 40-degree tilt facing south, the optimal configuration for London, using the supplied ground frame in a garden, yard or flat-roof position. Output will differ at other orientations.

Specific yield: 1,191 kWh/kWp/year (PVGIS simulation for London at 40-degree tilt, including cable, inverter and module losses, less a 2% soiling allowance, plus a 5% bifacial gain). The module is bifacial at 70%, so it also generates from light reflected onto the rear face. The 5% figure assumes a ground-frame installation with clear space behind the module.

Year 1 generation: 625 kWh.

Module degradation: 1% in year 1, 0.35%/year thereafter, reaching 88.85% of rated output at year 30 (Bolt Max performance warranty).

Inverter headroom: 530 Wp of modules feed a 2,500 W AC output with a 4,000 W PV input capability, so output is never limited by the inverter and no clipping loss is applied.

Seasonal generation split: Winter 33% / Summer 67% (derived from PVGIS monthly output at 40-degree tilt for London).

Annual consumption: 3,300 kWh, a higher-usage household. Winter 60% / Summer 40%.

Self-consumption rate: Winter 100% / Summer 100% (blended 100%). A single module rarely exceeds household demand, and the battery absorbs the occasional midday surplus, so all generation is used on site.

Electricity tariff: 30 p/kWh peak (smart time-of-use daytime rate), 8 p/kWh off-peak (overnight rate), 3% annual inflation.

Battery: Thunder Vault 4.02 kWh, LiFePO4 cells, 2,500 W output on a hardwired connection, 90% round-trip efficiency, IP66, 8,000+ cycle life, 10-year warranty. Expandable to 16.08 kWh with additional stacked units, which this projection does not assume.

Battery arbitrage: The battery is charged from the grid at the overnight off-peak rate and discharged during peak hours. Solar surplus charges the battery first, so the capacity available for off-peak grid charging is what solar leaves behind: 100% of capacity across 180 winter days and 94% across 185 summer days. In year 1 the battery stores around 42 kWh of surplus solar and takes around 1,423 kWh from the grid at the off-peak rate. With a single module the battery works mainly as a tariff-shifting store, which is why arbitrage makes up the larger share of the saving.

Export: No export income is included in this projection.

Basis of calculation: Figures are modelled on a 530 W single-module system with a 4.02 kWh battery.

This projection does not include battery degradation over time. Battery arbitrage savings assume the customer is on a smart time-of-use tariff with off-peak overnight rates. Actual returns may be higher or lower than projected depending on tariff availability and usage patterns. All figures are estimates based on the assumptions above and should not be considered as guaranteed returns.

What 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.

E.T

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G.W

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.

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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!

R.B

A young team who helped us

A young team who helped us with the whole process - thanks Matt!

D.N.M

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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.

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Good customer care

E.T

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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.

G.W

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.

N.I

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

R.B

A young team who helped us

A young team who helped us with the whole process - thanks Matt!

D.N.M

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

R.Y

Good customer care

E.T

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.

G.W

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.

N.I

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

R.B

A young team who helped us

A young team who helped us with the whole process - thanks Matt!

D.N.M

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

R.Y

Good customer care

E.T

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.

G.W

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.

N.I

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

R.B

A young team who helped us

A young team who helped us with the whole process - thanks Matt!

D.N.M

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

R.Y

Good customer care

E.T

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.

G.W

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.

N.I

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

R.B

A young team who helped us

A young team who helped us with the whole process - thanks Matt!

D.N.M

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

R.Y

Good customer care

E.T

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.

G.W

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.

N.I

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

R.B

A young team who helped us

A young team who helped us with the whole process - thanks Matt!

D.N.M

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

R.Y

How much could you save?

Enter your postcode and pick a kit. We estimate what it would generate at your address and what that is worth on your bill.

Step 1: Enter details

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Solar power system

Storm 360W

Storm 710W

Bolt 460W

Bolt Max 530W

Bolt 920W

Bolt Plus 530W

Bolt Plus 1060W

Setup direction

Current cost per kWh [£/kWh]

Typically 26p to 32p per kWh

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Step 2: Calculate potential savings

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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).

Shop with confidence

Free UK delivery

Fast, tracked shipping at no extra cost.
Long warranties

25-year panel warranty and 10-year Vault battery warranty. Every component backed by its own warranty.
Expert support

Free setup video call with every kit, plus support before and after you buy.
30-day returns

Changed your mind? Return your kit within 30 days for a full refund.

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Storm Plus 360W Plug-In Solar Kit with Battery

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Bolt Plus 530W Solar Kit with 4.02 kWh Battery

Frequently asked questions

Unbox the future of home solar

What can Bolt Plus 530W power?

Fridge freezer

LED TV

Washing machine

Dishwasher

Electric oven

Laptop

Kettle

LED bulb

Phone

20-year financial projection

What our customers say

Good customer care

Storm Plus 360W Solar Kit with Battery - Excelent Package System

Hoymiles microinverter

Hoymiles micro inverter

Got Storm 360W for our balcony and it…

Amazing Sevice

A young team who helped us

Very happy with our storm kit

Innovative and professional startup

Good customer care

Storm Plus 360W Solar Kit with Battery - Excelent Package System

Hoymiles microinverter

Hoymiles micro inverter

Got Storm 360W for our balcony and it…

Amazing Sevice

A young team who helped us

Very happy with our storm kit

Innovative and professional startup

Good customer care

Storm Plus 360W Solar Kit with Battery - Excelent Package System

Hoymiles microinverter

Hoymiles micro inverter

Got Storm 360W for our balcony and it…

Amazing Sevice

A young team who helped us

Very happy with our storm kit

Innovative and professional startup

Good customer care

Storm Plus 360W Solar Kit with Battery - Excelent Package System

Hoymiles microinverter

Hoymiles micro inverter

Got Storm 360W for our balcony and it…

Amazing Sevice

A young team who helped us

Very happy with our storm kit

Innovative and professional startup

Good customer care

Storm Plus 360W Solar Kit with Battery - Excelent Package System

Hoymiles microinverter

Hoymiles micro inverter

Got Storm 360W for our balcony and it…

Amazing Sevice

A young team who helped us

Very happy with our storm kit

Innovative and professional startup

Good customer care

Storm Plus 360W Solar Kit with Battery - Excelent Package System

Hoymiles microinverter

Hoymiles micro inverter

Got Storm 360W for our balcony and it…

Amazing Sevice

A young team who helped us

Very happy with our storm kit

Innovative and professional startup

How much could you save?

Step 1: Enter details

Step 2: Calculate potential savings

Shop with confidence

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