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Sunsynk Sun 8K ECCO Hybrid Inverter
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Sunsynk Sun 8K ECCO Hybrid Inverter

SUN-8.0-ECCO
£1,293.86 ex VAT £1,552.63 inc VAT

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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)8,000 W
Module Efficiency97.60 %
Battery Voltage40 - 60 V
MPPT Quantity2
Min MPPT Voltage150 V
Max MPPT Voltage425 V
Max Input Voltage500 V
Max DC Power10,400 W
Max AC Power (5 min)8,800 W
Max DC Current26 + 26 A
Max DC Inputs4
Integrated DC SwitchYes
Height580 mm
Width330 mm
Depth237 mm
Weight20.5 kg
IP RatingIP65
Operating Temperature-45 °C to +60 °C, derating above +45 °C
Warranty5 years
View Full Datasheet

Sunsynk Sun 8K ECCO Hybrid Inverter

Sunsynk · ECCO 8 kW SG05LP1

Sunsynk Sun 8K ECCO Hybrid Inverter

Sunsynk ECCO 8 kW SG05LP1 — 10.4 kW of PV and 190 A of battery current on a single-phase supply.

A hybrid inverter does three jobs a string inverter cannot. It converts solar DC to AC; it charges and discharges a battery on the DC side, which avoids the double conversion an AC-coupled battery pays for; and when the grid fails it islands the house and keeps the essential-load output alive from the battery.

Rated AC output
8,000 WSingle phase on-grid output
Backup output
8,000 WContinuous EPS power in a grid outage
Maximum PV input
10,400 WArray size this inverter accepts
Battery window
40 – 60 VThe architecture it takes
MPP trackers
2Independent roof planes
Peak efficiency
97.60 %Conversion efficiency at best
Warranty
5 yearsManufacturer cover
Overview

About the Sunsynk ECCO 8 kW SG05LP1

The 8 kW ECCO is the big single-phase unit in the range: 10,400 W of array across two trackers, 190 A of battery charge and discharge current, and a 16 kW peak for ten seconds. It suits a large house or a small commercial unit that has only a single-phase supply to work with.

Sunsynk build these around two output terminals rather than one: an essential-load output that stays live in a power cut, and a non-essential-load output that does not. That split is why the range is specified so often for houses that actually want to keep working through an outage rather than merely to store cheap electricity.

Battery compatibility

Which battery does this inverter take?

This inverter takes Low voltage, 40 – 60 V, lead-acid or lithium-ion.

This model has a battery voltage window of 40 – 60 V, a maximum charge or discharge current of 190 A, BMS communication over RS485; CAN.

This rule applies to the Sunsynk ECCO, Classic, Acure and MAX single phase, and the SG04LP3 three phase.

Charging strategy self-adapts to the battery BMS. Maximum charge and discharge current is model-specific and runs from 70 A on the 3 kW ECCO to 290 A on the 16 kW MAX.

What we stock that fits this inverter:

Sunsynk 5.32kWh IP65 Battery Complete with Isolator and CablesSunsynk's own LV battery, supplied complete.
Sunsynk 5.32kWh IP65 W5.3 Black Battery (Including Cable Sets)Wall-mounted IP65 version.
US5000 4.8kWh Li-Ion Solar Battery 48V (excl. brackets)A 48 V LV battery of the right architecture; confirm against Sunsynk's current approved list before ordering.
Low voltage and high voltage batteries are not interchangeable. A 48 V battery cannot be used on a high-voltage hybrid and a high-voltage stack cannot be used on a low-voltage one, whatever a general compatibility list says, and no adapter changes that. Solis put it plainly on their own list: installing a non-compatible battery will void the inverter warranty. If you are not certain, ask us and we will check it against your part number before you order.
For the installer

String design, battery limits and what is in the box

The details that decide whether this unit suits the job:

  • Battery is 48 V nominal, 40 – 60 V, lead-acid or lithium-ion, 190 A maximum charge and discharge, with an external temperature sensor included and BMS self-adaptation.
  • Two MPP trackers, two strings each, 26 A per tracker and 34 A Isc. 500 V maximum, 125 V start-up, 150 – 425 V MPPT window and a 200 – 425 V full-load window.
  • Maximum DC input is 10,400 W against an 8,000 W rating — a 1.3 oversize.
  • Off-grid peak is 16 kW for 10 seconds; maximum continuous AC passthrough is 50 A.
  • 20.5 kg, 330 × 580 × 237 mm, IP65, convection cooled at under 30 dB.
  • The datasheet's 99.90 % European efficiency is higher than its own 97.60 % maximum and cannot be right, so it is left off this page.
Applications

Where this hybrid earns its place

The ECCO 8 kW SG05LP1 is specified most often for these jobs.

Large single-phase houses10.4 kW of array on one unit.
Essential-load backup16 kW peak for motor starting.
Big battery banks190 A charge and discharge.
Off-grid and generator sitesOn-grid, off-grid or UPS operation.
Wind or hydro alongside solarManages power from several sources.
Sites with no three-phase supply8 kW without a three-phase connection.
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:
Technical specification

Sunsynk SYNK-8K-SG05LP1-EU technical data

This model
Maximum PV input power10,400 W
Output, backup and performance
Rated AC output power8,000 W
Maximum apparent AC power8,800 W
Rated AC output current34.8 A
Maximum AC output current38.3 A
Backup (EPS) continuous power8,000 W
Backup (EPS) peak power16,000 W for 10 s
Common to the range
Battery typeLead-acid or lithium-ion
Battery voltage range40 – 60 V
Maximum charge / discharge current190 A
Charging curve3 stages with equalisation
External temperature sensorYes
Charging strategy for lithium-ionSelf-adapting to the battery BMS
Rated PV input voltage370 V (125 – 500 V)
MPPT voltage range150 – 425 V
Start-up voltage125 V
Full load DC voltage range200 – 425 V
Maximum input current26 + 26 A
Maximum short circuit current34 + 34 A
Number of MPP trackers2
Strings per MPP tracker2
Maximum continuous AC passthrough50 A
Output frequency and voltage50 / 60 Hz, L/N/PE 230 Vac
Current harmonic distortionTHD <3 % (linear load <1.5 %)
Maximum efficiency97.60 %
MPPT efficiency97.00 %
Operating temperature range−45 °C to +60 °C, derating above +45 °C
CoolingNatural cooling
Noise emission<30 dB
Battery communicationRS485; CAN
Weight20.5 kg
Dimensions (W × H × D)330 × 580 × 237 mm
Ingress protectionIP65
InstallationWall mounted
Compliance and warranty
Grid connection standardsCEI 0-21, VDE-AR-N 4105, NRS 097, IEC 62116, IEC 61727, G99, G98, VDE 0126-1-1, RD 1699, C10-11
Safety and EMCIEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2
Warranty5 years
Specification sourceECCO 8kW SG05LP1 datasheet v5, 9 December 2023
Goes with this

Ordered with this inverter more often than anything else

A hybrid is the middle of a system, not the whole of it. These are the parts our customers add most often:

Sunsynk - SDM120CT-M - Digital Meter (Single-Phase)Single-phase Eastron SDM120CT meter, for self-consumption and export control.
Sunsynk Klik Device For Connecting 2 Different Batteries To A Single Hybrid InverterSunsynk Klik: connects two different battery brands to one inverter.
Sunsynk Long Cable Set for Battery to InverterLong battery-to-inverter cable set.
Frequently asked questions

Questions we get asked about this inverter

How much PV can I put on it?

10,400 W, across two trackers of two strings each at 26 A per tracker.

Which battery?

A 48 V nominal bank inside 40 – 60 V. At 190 A the cabling and the battery's own continuous rating usually decide the design rather than the inverter.

What is the peak output?

Twice rated power for ten seconds — 16 kW — which is what starts a large motor or a pump from the essential-load output.

Is it noisy?

No. It is convection cooled and quoted under 30 dB.

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 hybrid inverter range, our batteries and our solar panels, or email sales@clearraysolar.com if you would like us to check a battery pairing or a string design before you order.

High Efficiency 97.60 %More power from the same roof space
IP65 RatedBuilt for UK weather conditions

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Documents & Certificates
CE Declaration of Conformity Sunsynk - Battery-Compatibility - V14_En Data Sheet 8kW_SG05LP1-V5_En EN50549 Sunsynk ECCO SG05 EN G100 certification G100-V2 Procedure & Registration Instructions
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.