New-Build 1.8kW (4 Panels) Grid-Tie Solar Kit with 3.0kW AC Coupled Inverter and 5kWh Battery

Name: New-Build 1.8kW (4 Panels) Grid-Tie Solar Kit with 3.0kW AC Coupled Inverter and 5kWh Battery
Brand: RedCap
SKU: 1.8PV-3AC-5BAT
Price: 3941.48 EUR
Availability: InStock

4.79 (752 reviews)

€3.941,48

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check_circle ✨ Easy daily scalp care

check_circle 💡 Red light therapy support

HOW ABOUT MAXIMIZE RESULTS

1.8kW (4 Panels) Grid-Tie Solar Kit with 3kW AC Coupled Inverter and 5kWh Battery Free Shipping

€3.941,48

New-Build 1.8kW (4 Panels) Grid-Tie Solar Kit with 3.0kW AC Coupled Inverter and 5kWh Battery

(357 Reviews)

€3.941,48

Save Sold out

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What’s Included?

Every order comes with the Red Light Therapy Cap and a USB charging cable for convenient charging and everyday use.

If you choose one of the larger bundles, your package may also include a 2-month or 4-month supply of the brand’s botanical hair oil, depending on the option selected at checkout.

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Shipping & Returns

Orders are usually processed within 2–3 working days, Monday to Friday. International delivery typically takes between 7–12 working days.

Please note that weekends and public holidays are not included in processing times.

During periods of high demand, dispatch and delivery may take slightly longer than usual. We appreciate your patience while your order is on its way.

Orders placed later in the week may not be shipped until the following Monday if processing is not completed by Friday evening.

All purchases are covered by a 30-day money-back guarantee. If your item arrives damaged, faulty, or does not meet your expectations, you may request a return within 30 days of delivery.

For shipping enquiries, returns, or general support, please contact the customer service team via the email address provided on the website.

I’ve never bought anything from social media before, but this was worth it. After a a month, my hair actually feels a bit thicker!

Harry B.
I was feeling a lit bit septic about this but after a month using at work I notice a huge diference

Julia D.
GREAT INVESTMENT!!!! 3 MONTHS ONLY AND SAVED ME FROM GOING TO TURKEY FOR A SURGERY

Rob N.

New-Build 1.8kW (4 Panels) Grid-Tie Solar Kit with 3.0kW AC Coupled Inverter and 5kWh Battery

Meets UK Future Homes Standard regulations for new builds while cutting running costs.
Store surplus solar in a 5kWh battery instead of exporting it all to the grid, with SEG export payments still available.
Complete new-build kit with all-black panels, PV inverter, 3.0kW AC coupled inverter, 5.12kWh battery, in-roof mounting and safety components.

Solar panels on new builds are now common to meet tightening energy regulations while cutting costs and adding property value. This 1.8kW grid-tie kit includes 4 all-black JA Solar panels, Solis 2.0kW PV inverter, protection gear and GSE in-roof mounting kit. Suits pitched roofs needing G98/G99 DNO approval.

The 3.0kW Solis S5-EA1P3K-L G5 AC coupled inverter and 5.12kWh Dyness PowerDepot H5B G2 LFP battery add on-site storage, helping you shift solar to evenings and backup essential loads during outages when used with a suitable system design.

Key Features

4 × JA Solar 450W N-type Bifacial Double Glass LB All Black with EVO2A solar panels (22.5% efficiency) for discreet, high-yield new-build roofs.
Solis 2.0kW S6-GR1P2K-M PV inverter with 97.3% max efficiency and IP66 weather protection for outdoor or loft mounting.
Solis 3.0kW S5-EA1P3K-L G5 single-phase low-voltage AC coupled inverter for flexible retrofit or hybrid-style storage.
Dyness PowerDepot H5B G2 5.12kWh IP65 LFP battery for long life, high safety and indoor/outdoor wall or floor mounting.
BENY IP65 AC switch, Projoy DC isolator and Emlite generation meter for safety and compliance in UK installations.
GSE in-roof solar mounting kit for a neat, integrated appearance ideal for new-build housing.
JA Solar panels Proof T4 certified for use with the GSE In-Roof System
Option 1: Marlec Solar iBoost diversion kit for hot water immersion heaters.
Option 2: Marlec heat pump control using the iBoost Heat Pump Interface (HPI) to prioritise low-carbon heating.

Applications

New-build homes needing Part L / Future Homes-compliant on-site renewables with in-roof PV and battery storage.
Small commercial units, home offices and small logistics buildings looking to cut imported energy and add resilience.
Developers wanting a pre-engineered kit that can be installed by trusted MCS partners with DNO approval.

JA Solar JAM54D-41-450-LB-450W – Electrical Data

Parameter	Value
Nominal Max. Power (Pmax)	450W
Opt. Operating Voltage (Vmp)	32.82V
Opt. Operating Current (Imp)	13.71A
Open Circuit Voltage (Voc)	39.3V
Short Circuit Current (Isc)	14.48A
Module Efficiency	22.5%

JA SolarJAM54D-41-450-LB-450W – Mechanical Data

Parameter	Value
Dimensions	1762 × 1134 × 30 mm
Weight	22kg
Cell Type	n-Type cells
J-Box	IP68, 3 bypass diodes
Max. static Load	5400Pa

Solis S6-GR1P2K-M PV Inverter – Specifications

Parameter	Value
Recommended max. PV power	3.0kW
Max. input voltage	600V
MPPT voltage range	80–500V
Max. input current	14A
Rated output power	2.0kW
Max. output power	2.2kW
Max. apparent power	2.2kVA
Rated AC output current	9.1/8.7A
Max. output current	10.5A
Power factor	>0.99 (0.8 leading – 0.8 lagging)
THDi	<3%
Max. efficiency	97.3%
Dimensions (W×H×D)	310 × 373 × 160 mm
Weight	7.4kg
Operating temperature range	-25 ~ +60°C
Ingress protection	IP66
DC Connection	MC4
AC Connection	Quick connection plug
Communication	RS485, Optional: Wi-Fi, GPRS

Solis S5-EA1P3K-L G5 3.0kW AC Coupled Inverter – AC Output – Grid Side

Parameter	Value
Rated output power	3kW
Max. output power	3kW
Max. apparent output power	3kVA
Operation phase	1NPE
Rated grid voltage	220V / 230V
Grid voltage range	184 – 264V
Rated grid frequency	50Hz / 60Hz
Rated grid output current	13.6A / 13A
Max. output current	20A
Power factor	0.99 (0.8 leading – 0.8 lagging)
THDi	<3%

AC Input – Grid Side

Parameter	Value
Rated input voltage	220V / 230V
Input voltage range	184 – 264V
Max. input current	13.6A / 13A
Rated grid frequency	50Hz / 60Hz
Frequency range	45 – 55Hz / 55 – 65Hz

Battery Side

Parameter	Value
Battery type	Li-ion / Lead-acid
Battery voltage range	40 – 60V
Battery capacity	50 – 2000Ah
Max. charge/discharge current	60A
Battery communication	CAN

Efficiency

Parameter	Value
Max. battery charge efficiency	94.0%
Max. battery discharge efficiency	94.5%

General Data

Parameter	Value
Dimensions (W × H × D)	405 × 510 × 150 mm
Weight	12.1kg
Topology	High frequency isolation
Operating ambient temperature range	-25 ~ 60°C
Ingress protection	IP65
Cooling concept	Natural cooling
Max. operating altitude	2000m
Grid connection standard	G98 or G99, EN 50549-1 and other international standards (see datasheet for full list).
Safety / EMC	IEC 62477, EN 61000-6-2, EN 61000-6-3
DC connection	Screw terminal
AC connection	Screw clamp terminal (max. 6mm²)
Display	LCD
Communication	RS485, CAN, Optional Wi-Fi, GPRS

Dyness PowerDepot H5B G2 5.12kWh LV LFP Battery – Technical Specifications. Size and Weight

Parameter	Value
Model	PowerDepot H5B
Nominal voltage	51.2V
Nominal capacity	100Ah
Dimensions (W × D × H)	574 × 228 × 600 mm
Weight	55kg
IP level	IP65

Performance Parameters

Item	PowerDepot H5B
Nominal voltage	51.2V
Work voltage range	44.8 – 57.6V
Nominal capacity	100Ah
Nominal energy	5.12kWh
Nominal power	2.56kW
Max. power	3.84kW
Charging current	50A
Discharge current	50A

Interface Definition (Front Panel)

Item	Name	Definition
1	Positive socket	Battery DC output positive pole, connects to inverter positive through cable
2	COM IN	CAN/RS485 socket, to inverter or previous battery in parallel system
3	Negative socket	Battery DC output negative pole, connects to inverter negative through cable
4	COM OUT	CAN/RS485 socket reserved or to next battery in parallel system
5	SOC	LEDs showing remaining battery power
6	ALM	Red alarm LED (flashing or solid during protection)
7	Reset switch	Turns battery system on/off, enables sleep mode when unused
8	Ground connection point	Shell ground connection
9	DC circuit breaker	Circuit protection
10	COM	Communication cascade port, supports RS232

Shipping

Available to UK, Ireland, Africa, the Caribbean and worldwide. If no rate is shown at checkout, contact us on +44 2080640335 or info@energian.co.uk for a shipping quote.

Support & Installation

UK expert support is available via phone, email, live chat or office visit for system design, product selection and after-sales queries.

Installation via trusted, qualified partners is strongly recommended to meet MCS requirements, maintain warranties and secure G98/G99 DNO approval for grid connection.

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Elevate your hair care routine

Experience our Red Light Therapy Cap a lightweight device created to support healthier-looking hair growth for both men and women. Designed for comfort, simple to wear, and suitable for everyday use

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Everyday Comfort

Lightweight, breathable, and easy to wear throughout the day. Whether you’re at home, working, or relaxing, the Red Light Therapy Cap fits naturally into your routine. No complicated setup, just simple daily use.

Proven Results

Built to deliver consistent red light therapy, this cap supports healthier, fuller-looking hair with regular use. Many users notice reduced shedding and visible improvements in hair density over time. Designed for long-term consistency and everyday comfort

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Recommended by dermatologists and trichologists

Comparison table

Discover why our RedCap™ delivers superior comfort, enhanced scalp coverage, and a design tailored for everyday wear.

	RedCap™	Others
Even laser distribution
Lightweight and easy to wear
Designed for everyday hair care

How RedCap™ works?

Red light therapy uses clinically studied wavelengths that penetrate the scalp and stimulate cellular activity around the hair follicle. This process supports microcirculation, improves oxygen delivery, and helps energise follicular cells through increased ATP production

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Results

90%

Customers appreciate how effortless the Laser Cap makes daily use

90%

Many users value the lightweight feel and easy-to-follow routine

90%

Reported noticeable improvements to their overall hair care experience

Testimonials

★★★★★

Easy to use every day
I’ve found it incredibly easy to fit into my daily routine. The cap feels comfortable, lightweight, and simple to use every evening
— James, Manchester
★★★★★

Noticeably healthier-looking hair
After a few weeks of consistent use, my hair looked noticeably healthier and my scalp felt much better overall
— Daniel, London
★★★★★

Really works
I appreciate how discreet and practical it is. I can wear it while working and it works suuuuper good
— Sophie, Birmingham

Trustpilot reviews

Excellent 4.8 / 5

Coming back after 50 days to leave this review

I wanted to wait before writing a review and after almost 50 days of using it, I can honestly say I’m very happy with my purchase. The RedCap really works and the quality has been great from day one. Ellen from customer support was also very helpful Really grateful and would definitely recommend it.

Matthew B.
Exceeded my expectations

I honestly didn’t expect the quality to be this good. The fit is perfect, the material feels premium and shipping was faster than expected. Definitely ordering again.

James W.
Looks even better in person

Very impressed with the design and comfort. I’ve already received compliments wearing it out in public. Feels high quality and worth every penny.

Ethan P.
Customer service was amazing

Had a small question about my order and got a reply really fast. Product arrived in perfect condition and the packaging was actually very nice. You can tell they care about the customer experience.

Julian M.
Great quality for the price

Was a bit skeptical before ordering but I’m glad I did. The material feels solid and the overall finish is really clean. Been using it almost every day since it arrived.

Mirian L.

New-Build 1.8kW (4 Panels) Grid-Tie Solar Kit with 3.0kW AC Coupled Inverter and 5kWh Battery