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Solis 8.0kW 5G Dual MPPT - Single Phase with DC
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Solis 8.0kW 5G Dual MPPT - Single Phase with DC

SOL-8.0-5G-DT-DC
£824.93 ex VAT £989.92 inc VAT

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Secure Checkout 14-Day Returns Tracked Delivery
High Conversion EfficiencyMore of your solar reaches the home
MPPT TrackingMaximises yield in changing light
Grid CompliantMeets UK G98 / G99 requirements
Technical Specifications
Rated Power (Pmax)8.0 kW
Module Efficiency98.1 %
MPPT Quantity2
Min MPPT Voltage90 V
Max MPPT Voltage520 V
Max Input Voltage600 V
Max DC Power10.4 kW
Max AC Power (5 min)8.0 kVA
Surge AC Power (1 sec)8,000 W
Max DC Current12.5 A + 25 A
Max DC Inputs3
Integrated DC SwitchYes
Height543 mm
Width310 mm
Depth180 mm
Weight13.3 kg
ConnectorMC4
IP RatingIP65
Operating Temperature-25 °C to +60 °C
Warranty5 years standard, extendable to 10, 15 or 20 years
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Solis 8.0kW 5G Dual MPPT - Single Phase with DC

Solis · 5G Single Phase

Solis 8.0kW 5G Dual MPPT - Single Phase with DC

Solis 5G Single Phase — 8 kW on a single phase, for the biggest domestic roofs.

Eight kilowatts is about as much as a single-phase supply will usually take, and it is the right answer for a large detached roof, a barn conversion or a house that has just gained a heat pump and an EV. The Solis 1P8K-5G delivers it in a 13.3 kg wall-mounted box that one person can install.

Rated output
8.0 kWSingle phase AC output
Maximum PV input
10.4 kWArray size this inverter accepts
MPP trackers
2Independent maximum power point trackers
Peak efficiency
98.1 %Conversion efficiency at best
Maximum DC voltage
600 VString voltage ceiling
MPPT window
90 – 520 VWhere it tracks
Protection rating
IP65Indoor or outdoor mounting
Warranty
5 yearsStandard, extendable to 10, 15 or 20 years
Important

Please read before ordering

Please note: EN50549 Certificate not compliant,
therefore this unit cannot be installed in Republic of Ireland.
Please note: Not G100 compliant.
Overview

About the Solis 5G Single Phase

The asymmetric tracker design is the interesting part: input A takes 12.5 A and input B takes 25 A across two strings. That lets you hang a large main array off B and a smaller secondary orientation off A, rather than forcing a symmetrical layout the roof does not have.

It also supports 1.1× overload, so a 10.4 kW array on an 8 kW inverter is a supported design rather than a compromise — useful in the UK where peak output is reached for only a handful of hours a year and clipping costs almost nothing.

For the installer

String design, certification and what is in the box

The details that decide whether this unit suits the job:

  • Two trackers with different current ratings (12.5 A and 25 A) — check your string design against the right input.
  • Maximum DC input power 10.4 kW against 8 kW AC, so meaningful DC oversizing is designed in, not tolerated.
  • 13.3 kg, single-person install.
  • EN 50549 and G99 certified; expect a G99 application at this size on a single phase.
Applications

Where this inverter earns its place

The 5G Single Phase is specified most often for these jobs.

Large detached roofsWhere the array runs past 8 kWp and the supply is single phase.
Heat pump and EV householdsSized for homes whose electrical demand has doubled.
Barn and outbuilding arraysBig roof, single phase supply, no three-phase available.
Farm diversificationModest commercial generation on a domestic connection.
Oversized DC designs1.1× overload support makes a 10 kWp array on 8 kW AC a sound design.
Battery and storage

Can I add a battery to this?

This is a grid-tied PV inverter. It converts solar DC into AC for the property and the grid, and it has no battery port. That is not a shortcoming — it is the right architecture for a system without storage, and it is why it costs what it does.

If storage is on the roadmap, you have two routes. Add an AC-coupled battery system alongside this inverter later, which works with any PV inverter and needs no change to what is already installed. Or choose a hybrid inverter now and pay for a battery port you will use in a year or two. We are happy to talk that trade-off through before you order.

Before you order

Things worth knowing about this listing

These notes come from us and from the manufacturer, and they are the ones that most often cause a problem after delivery:
  • Please note this inverter has two MPP trackers, each with a different maximum allowed DC current. Check your string design against the right input.
  • Some manufacturer documents for this model are currently missing. They will be added as soon as the manufacturer releases them.
  • Some manufacturer documents for this model are currently missing. They will be added as soon as Solis release them.
Technical specification

Solis Solis-1P8K-5G technical data

This model
Recommended maximum PV power10.4 kW
Maximum DC input voltage600 V
Rated DC voltage330 V
Start-up voltage120 V
MPPT voltage range90 – 520 V
Maximum input current12.5 A + 25 A
Maximum short circuit current19.5 A + 39 A
Output and performance
Rated output power8.0 kW
Maximum apparent output power8.0 kVA
Rated output current34.8 A
Maximum output current34.8 A
Maximum efficiency98.1 %
European weighted efficiency97.3 %
Common to the range
Number of MPP trackers2
Maximum input stringsA: 1, B: 2
Rated grid voltage220 V / 230 V
Grid voltage range211 – 264 V
Operation phaseSingle phase
Power factor0.8 leading to 0.8 lagging
THDi at rated output<3 %
MPPT efficiency99.5 %
TopologyTransformerless
Self consumption at night<1 W
Dimensions (W × H × D)310 × 543 × 180 mm
Weight13.3 kg
Operating ambient temperature−25 °C to +60 °C
Relative humidity0 – 100 %
Ingress protectionIP65
Noise emission (typical)<20 dB(A)
CoolingNatural cooling
Maximum operating altitude4,000 m
DC connectionMC4
AC connectionTerminal connectors
DisplayLCD
CommunicationRS485; Wi-Fi and GPRS optional
Compliance and warranty
Grid connection standardsEN 50549, G99, AS 4777.2:2015, VDE 0126-1-1, IEC 61727, VDE 4105-2018
Safety and EMCIEC 62109-1/-2, NBT 32004-2018, EN 61000-6-2, EN 61000-6-3
Warranty5 years standard, extendable to 10, 15 or 20 years
Specification sourceData Sheet Solis 1PH 5G 8K
Frequently asked questions

Questions we get asked about this inverter

Will my DNO allow 8 kW on single phase?

It is a G99 application rather than a G98 notification, and the answer depends on your local network. Most UK DNOs will allow it with an export limit; some will allow full export. Apply before you buy the panels.

Why are the two trackers different sizes?

Input B is rated 25 A across two strings for the main array, input A 12.5 A for one string. It suits a large primary orientation plus a smaller secondary one.

Can I oversize the array?

Yes, up to 10.4 kW of modules. The inverter clips the handful of hours a year that exceed 8 kW, and you gain generation every other day of the year.

ClearRay Solar

Documents, advice and trade pricing

Every datasheet, certificate, installation manual and warranty document we hold for this product is in the Documents tab below. See the rest of our inverter range and our solar panels, or email our sales team at sales@clearraysolar.com if you would like us to check a string design or a compatibility question before you order.

High Efficiency 98.1 %More power from the same roof space
IP65 RatedBuilt for UK weather conditions

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Documents & Certificates
CE Declaration of Conformity Solis-(7-8)K-5G Data Sheet Solis 1PH 5G 8K G99 Certificate 8k IEC Certificate
Shipping & Returns

Delivery times vary by region:

  • UK — 1-2 business days
  • Highlands & Islands — 1-2 business days

Returns accepted within 14 days of delivery for unused items in original packaging.