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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.

Discount code price including delivery: £659.05
View at PowerXpress

Ad · Use code PSCALC5 at checkout for 5% off the kit price.

Delivered price with code: £689 £659.05

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%
Start-up voltage
22V
Connectivity
Wi-Fi, Bluetooth
AC cable length
5m

Where to buy

The PowerXpress Plug-in Solar 920W — 90012 is available direct from PowerXpress at a discount-code price, and from Screwfix.

Direct from kit supplier

PowerXpress

Discount code price inc. delivery:£689£659.05
View at PowerXpress

Ad · Use code PSCALC5 at checkout for 5% off the kit price.

Major UK retailers

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

Other items you may need

This plug-in solar kit includes all of the main equipment needed to get set up, but depending on where and how you install it, there may be a couple of additional items worth considering.

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)

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 £659.05 discount code 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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The following kits have a similar panel capacity and spec to the PowerXpress Plug-in Solar 920W — 90012.

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