PluginSolarCalculator.com

POWERXPRESS

PowerXpress Plug-in Solar 920W — 90012

Updated: .

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: £669
View at Screwfix

ENA compliance

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 Octopus Energy 920W 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%
IP rating
IP67
Connectivity
Wi-Fi, Bluetooth
AC cable length
5m

Where to buy

The PowerXpress Plug-in Solar 920W — 90012 is available from Screwfix, and can also be bought direct from PowerXpress.

Major UK retailers

Direct from kit supplier

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 £669 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

Similar plug-in solar kits

The following kits have a similar panel capacity and spec to the PowerXpress Plug-in Solar 920W — 90012.

View all plug-in solar kits