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Bolt Plus 1590W Solar Kit with 4.02 kWh Battery

Bolt Plus 1590W Solar Kit with 4.02 kWh Battery

Name: Bolt Plus 1590W Solar Kit with 4.02 kWh Battery
Brand: Thunder Energy
Price: 2299.98 GBP
Availability: InStock

£2,299.98

Sale Sold out

Tax included. Shipping calculated at checkout.

Description

More room for solar? Put it to work. Bolt Plus 1590W combines three high-output rigid solar panels with Thunder Vault 4.02 kWh battery storage and an integrated hybrid inverter.

Designed for larger garden areas, suitable garage roofs and low-level outbuildings. Includes three low-profile mounting bracket sets and 5m DC cabling for each panel.

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

More Daylight Generation. Storage Ready for Later.

With three 530W rigid solar panels and a 4.02 kWh battery, Bolt Plus 1590W is designed for households with more usable outdoor space and a stronger focus on generating their own electricity. The array can contribute to daytime consumption while charging Vault when surplus solar is available.

Thunder Vault 4.02 kWh Solar Battery System is built around the Hoymiles HiBattery 4020 X. Its integrated hybrid inverter offers four independent MPPT inputs, so each of the three panels can connect directly without an additional microinverter.

Made for the Space You Have

Three panels work well where a garden, garage roof or suitable low-level extension offers enough space for a larger but still compact array. Optional smart metering provides greater visibility over household electricity use and export behaviour.

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

1,590W Solar Capacity
Three 530W rigid panels create a meaningful small-scale solar array.

Vault 4.02 kWh Storage
Store available solar energy for later use, with support for cheaper off-peak grid charging.

Three Independent MPPT Inputs
The integrated hybrid inverter tracks each connected panel separately.

Room to Expand
A fourth compatible solar input remains available; battery storage can increase to 16.08 kWh.

Smart App & Optional Meter
Monitor energy flows in S-Miles Home and add a smart meter for household monitoring and zero-export settings.

Backup Power Connection
The dedicated off-grid output can support compatible appliances during a power cut.

Flat-Surface Mounting Included
Three low-profile mounting bracket sets for suitably assessed, securely ballasted locations.

What's in the box

3 x Bolt 530W rigid solar panels
1 x Thunder Vault 4.02 kWh Solar Battery System (Hoymiles HiBattery 4020 X)
3 x low-profile flat-roof no-drill mounting bracket sets
3 x 5m DC extension cable pairs (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
1,590Wp (3 x 530Wp)

Solar panel type
3 high-efficiency rigid solar panels

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

Panel inputs used
3 of the 4 independent MPPT inputs

Solar mounting
3 low-profile flat-roof mounting bracket sets

DC cabling
5m DC extension cable pair for each panel (3 pairs)

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 3 rigid panels 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 1590W Solar Kit with 4.02 kWh Battery

£2,299.98

Frequently asked questions

Does the third panel need a separate microinverter?

No. The Vault hybrid inverter includes four independent solar inputs, so all three panels connect directly through the battery system.

Is 1,590W the power delivered to my house?

No. The 1,590W figure is the total peak DC solar panel rating under standard test conditions. AC output is limited by the battery/inverter settings and the installation configuration.

What if I want even more solar capacity?

Vault supports four independent MPPT inputs. Bolt Plus 2120W includes four 530W panels, and future expansion must remain within the system input limits.

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 1590W power?

Bolt Plus 1590W generates about 1,874 kWh in its first year at a 40° tilt facing south, and around 1,824 kWh of that is used in your home, with the Vault 4.02 kWh battery storing the midday surplus for the evening. That's enough to cover all of this:

The appliances below use about 1,648 kWh of the 1,824 kWh used at home each year

Fridge freezer

Running 24/7

365 days a year
About 139 kWh
LED TV

6 hours a day

2,190 hours a year
About 131 kWh
Washing machine

7 washes a week

364 washes a year
About 255 kWh
Dishwasher

7 cycles a week

364 cycles a year
About 364 kWh
Electric oven

7 hours a week

364 hours a year
About 364 kWh
Laptop

8 hours a day

2,920 hours a year
About 88 kWh
Kettle

5 boils a day

1,825 boils a year
About 183 kWh
Wi-Fi router

Running 24/7

365 days a year
About 88 kWh
LED bulb

8 hours a day

2,920 hours a year
About 26 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

1.59 kWp

System size

3 x Bolt Max 530W + Vault 4.02 kWh
1,874 kWh

Year 1 generation

London estimate
£691

Year 1 savings

Solar plus battery, at 30p/kWh peak
£18,028

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	1,874	1,824	£547	£143	£691	£691
2	30.90	1,868	1,818	£562	£148	£709	£1,400
3	31.83	1,861	1,811	£577	£152	£729	£2,128
4	32.78	1,855	1,805	£592	£157	£748	£2,877
5	33.77	1,848	1,799	£607	£161	£769	£3,645
6	34.78	1,842	1,793	£623	£166	£790	£4,435
7	35.82	1,835	1,786	£640	£171	£811	£5,246
8	36.90	1,829	1,780	£657	£176	£833	£6,079
9	38.00	1,823	1,774	£674	£181	£856	£6,934
10	39.14	1,816	1,768	£692	£187	£879	£7,813
11	40.32	1,810	1,761	£710	£193	£903	£8,716
12	41.53	1,803	1,755	£729	£198	£927	£9,643
13	42.77	1,797	1,749	£748	£204	£952	£10,595
14	44.06	1,791	1,743	£768	£210	£978	£11,574
15	45.38	1,785	1,737	£788	£217	£1,005	£12,579
16	46.74	1,778	1,731	£809	£223	£1,032	£13,611
17	48.14	1,772	1,725	£830	£230	£1,060	£14,671
18	49.59	1,766	1,719	£852	£237	£1,089	£15,760
19	51.07	1,760	1,713	£875	£244	£1,119	£16,879
20	52.61	1,754	1,707	£898	£251	£1,149	£18,028

Methodology and assumptions

System: 3 x Bolt Max 530W solar modules (N-type back-contact monocrystalline, dual glass bifacial, 23.5% efficiency), total 1.59 kWp, with a Thunder Vault 4.02 kWh solar battery. The Vault contains the system inverter, so no separate microinverter is required: each 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 modules are bifacial at 70%, so they also generate from light reflected onto the rear face. The 5% figure assumes a ground-frame installation with clear space behind the modules.

Year 1 generation: 1,874 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: 1,590 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 96% (blended 97%). The battery absorbs most of the midday summer surplus; a small share of summer output arrives when both the household and the battery are already full.

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 0% across 185 summer days. In year 1 the battery stores around 744 kWh of surplus solar and takes around 724 kWh from the grid at the off-peak rate.

Export: No export income is included in this projection.

Unused generation: Around 50 kWh a year is generated beyond what the household and battery can absorb and is not counted as a saving.

Basis of calculation: Figures are modelled on a 1,590 W (3 x 530 W) 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

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

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

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.

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

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

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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Frequently asked questions

Unbox the future of home solar

What can Bolt Plus 1590W power?

Fridge freezer

LED TV

Washing machine

Dishwasher

Electric oven

Laptop

Kettle

Wi-Fi router

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?

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