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POWERXPRESS

PowerXpress Plug-in Solar 920W — 90012

Stock status : In stock

Explore this kit
PowerXpress Plug-in Solar 920W kit with two panels, microinverter and adjustable mounting frame

The PowerXpress Plug-in Solar 920W — 90012 is a 920W two-panel plug-in solar kit supplied by PowerXpress.

This 920W kit combines two OSDA Solar 460W bifacial solar panels with an 800VA Marstek MST-MI0800W microinverter and an adjustable mounting system suitable for ground, wall or balcony installations.

Price including delivery: £599
View at Marstek Direct

ENA compliance

Compliance

The PowerXpress Plug-in Solar 920W — 90012 was approved for plug-in solar use in Great Britain on and is listed as compliant in the Plug-in Solar category of the ENA Type Test Register under reference number POWEZA/21077/V1/A1.

View ENA record for this kit

Registration

If you buy this kit you must notify your Distribution Network Operator (DNO) by registering it at myplugin.solar within 28 days of installation. Use ENA reference number POWEZA/21077/V1/A1 when registering to find and select the correct approved kit.

Read our DNO registration guide

What’s included

Panels

  • 2 × 460W OSDA Solar panels
  • 920W total panel capacity
  • Bifacial TOPCon N-Type
  • 23.1% module efficiency

Microinverter

  • Marstek MST-MI0800W
  • 800VA maximum AC output
  • 2 PV input channels
  • 2 independent MPPTs

Mounting system

  • Suitable for ground, wall or balcony
  • 15° to 45° adjustable mounting angle

AC & DC cables

  • 5m AC cable
  • DC cable length not specified by supplier

Warranty

  • 10 year warranty
  • 25 year panel performance guarantee

Pros & cons

Pros

  • Panels can work independently: Two independent MPPTs allow the microinverter to manage each panel separately, so shading or a different orientation on one panel does not affect the performance of the other.
  • High-efficiency bifacial panels: The supplied OSDA Solar bifacial panels can generate from light reaching both their front and rear surfaces and deliver an excellent 23.1% module efficiency.
  • Flexible mounting options: The supplied mount suits ground, wall or balcony installation and adjusts from 15° to 45°, helping you optimise the panel angle to capture more sunlight and improve generation.

Cons

  • Cheaper alternatives are available: Similar-capacity kits with dual-MPPT microinverters are available for less, including the Solarfy Duo 910W kit.
  • A simpler kit may offer better value: If both panels can face the same direction in an unshaded location, a dual-MPPT microinverter may offer limited extra benefit. Cheaper City Plumbing kits with a single MPPT could therefore represent better value.

Detailed kit specification

The full known specifications for the solar panels and microinverter supplied with the PowerXpress Plug-in Solar 920W — 90012 are shown below.

Solar panels

Manufacturer
OSDA Solar
Quantity
2 panels
Rated power
460W per panel (920W total)
Technology
Bifacial TOPCon N-Type
Dimensions
176 × 113 × 3cm per panel
Weight
24.7kg per panel
Module efficiency
23.1%
Year 1 degradation
1%
Annual degradation
0.4%
DC cable length
Not specified by supplier

Microinverter

Manufacturer
Marstek
Model
MST-MI0800W
Maximum output
800VA
PV input channels
2
Independent MPPTs
2
Weight
3.85kg
Peak efficiency
96.5%
Start-up voltage
22V
Connectivity
Wi-Fi, Bluetooth
AC cable length
5m

Before you buy

A few practical things to check before choosing where and how to install this kit.

Electrical safety

Before using this kit, check that the circuit supplying your socket has suitable RCD protection. Electrical Safety First recommends at least Type A bidirectional protection and advises upgrading Type AC protection before use

Read our safety guidance

Installation & planning

Each panel measures 176 × 113 cm and weighs 24.7 kg. The supplied AC cable is 5 m long. Check that your chosen location can support the panels, allows a suitable cable route and meets any applicable planning restrictions.

Read our planning guide

Ballast

If you’re installing the kit freestanding, you’ll need ballast to weigh down the mounting frame and help prevent movement or uplift. Follow the manufacturer’s instructions for the required ballast weight and positioning.

View ballast blocks at Wickes

Cable protection

If the AC cable runs through an exposed area, split conduit can provide additional protection. Because the plugs and connectors are moulded onto the cable, split conduit can be fitted around it without needing to remove them.

View split conduit on Amazon UK (paid link)

Where to buy

The PowerXpress Plug-in Solar 920W — 90012 is available directly from the kit supplier PowerXpress, as well as from Marstek Direct (inverter supplier) and Screwfix.

Direct from kit supplier

Major UK retailers

Prices and availability can change. Always confirm the complete kit specification and current price with the retailer before buying.

Estimate savings and payback

Estimated solar generation, annual savings and payback period for the PowerXpress Plug-in Solar 920W — 90012 depend on where you live, how the kit is positioned, and crucially, how much of the solar electricity your household uses.

Get a tailored estimate

We’ll pre-fill the calculator with this kit’s 920W panel capacity and £599 delivered price. Just enter your postcode, panel setup and a few details about your household and electricity use to estimate generation, savings and payback.

Use the plug-in solar calculator

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