Duo 890W hybrid kit (the Back Wall Kit)

Our Back Wall Kit. Two panels on a hybrid stand that goes on the back wall of your house, once a professional has assessed it, or on the yard floor.

ENA Type Test Register: Compliant
10 years on panels and stand
Ships to England, Scotland, Wales

Your order

1 per household

Coming soon

Duo 890W, hybrid mount: Price TBC
Delivery to your door: TBC
Total: TBC

Dispatch date to be confirmed.

Unpack it and you'll find

2 × 445W TOPCon N-type panels (bifacial, glass-glass)
1 × APsystems EZ1-M 800W microinverter
Hybrid aluminium mounting frame with ballast brackets, for a wall or the ground
4m AC cable and 2m DC extension cable

Ballast isn't included, for when it goes on the floor.

House wall, yes. Yard wall, no.

Up on the back wall of the house, the panels clear the shadow of the yard wall and catch sun the flags miss. That's why we call it the Back Wall Kit. It needs about 3.7m of wall.

The maker requires a professional assessment before any wall, flat-roof or raised install. Book that before anything is fixed to the house.

Where it can't go

the yard's back or side walls, which are usually the boundary with the entry or next door
any wall shared with a neighbour (a party wall)
balconies
buildings with timber, ACM, MCM or HPL cladding, or having external wall remediation
anything held on with cable ties, rope, straps or tape

In England a kit on a house wall has to stay within set limits, can't go on a street-facing wall in a conservation area, and isn't allowed on a listed building. Plenty of Manchester terraces sit in conservation areas, so check with your council if yours might.

Or keep it on the flags

On the flags, the hybrid stand is held with expansion bolts or ballast on its lower feet. The maker's ground-kit ballast table doesn't cover the hybrid stand, so ask us first and we'll get the maker's figure for your kit. Don't use it ballasted until that's confirmed.

Tick these off first

Can't tick one? Sort it before you order, or ask us through the contact form.

About 3.7m × 1.2m of sunny house wall or yard floor.
A weatherproof outdoor socket within reach of the kit's 4m lead. Straight into the wall, no extension leads, reels or adaptors.
Modern RCD protection in your fuse box. Old fuse box, or not sure? An electrician can check it, or fit the outdoor socket.
Going on a wall? It needs a professional assessment first (the maker's rule), and it must be a wall of your own house, never the yard's boundary wall.
Renting, leasehold or in a managed block? Get written permission from your landlord, freeholder or managing agent before you buy.
Give your home insurer a quick ring before you set it up.
Register it free at myplugin.solar before you switch on. That lets Electricity North West, who run the wires round here, know it's there.
One kit per household, and never wired up with a home battery.

Not sure it's the one? Try the terrace picker

Every number, in one place

Panel power: 2 × 445W (890W)
Output into your home: Up to 799VA (3.5A), 230V 50Hz
Panels: TOPCon N-type mono, bifacial glass-glass, 108 cells per panel, 22.3% efficiency
Panel size: 1724 × 1134 × 30mm each
Panel weight: 25.5kg each
Space needed: About 3.7m × 1.2m (4.4m²)
Microinverter: APsystems EZ1-M 800W microinverter, 2 MPPT, 96.7% peak efficiency, IP67, Wi-Fi and Bluetooth app
Mounting: Hybrid aluminium mount, wall or ground (expansion bolts or ballast). Professional assessment for any install that isn't on the ground. Not suitable for balconies
Cables: 4m AC cable, 2m DC extension cable
Plug type: Factory-fitted, moulded and fused UK plug (BS 1363). Don't cut it off or rewire it
Box: 1750 × 1165 × 240mm, 74.5kg
Fire rating: Class C
Standards: BS EN 50549-1, BS EN 62109-1, BS EN 62109-2, EN 755-1, EN 755-2
Where it's made: China
ENA Type Test Register: Listed as Compliant (0.8kW, single phase)
Manufacturer's warranty: 10 years on the panels and on the mounting stand. The APsystems microinverter has its own manufacturer's warranty. Cables, connectors and accessories: 2 years

From the maker's datasheet (September 2026).

When it ships

Date to be confirmed

Once the maker confirms a date, the kit goes on pre-order and the dispatch date shows here, in your basket and at checkout.

On a pre-order you pay in full when you order. If we can't dispatch by the long-stop date in your confirmation email, you choose: a full refund or keep waiting. You can cancel for a full refund at any time before dispatch, and for 14 days after delivery.

The box is 1750 × 1165 × 240mm and weighs 74.5kg. Two people, and measure the hallway first.