6 kWp solar with optimisers on a shaded roof in Milton Keynes

A homeowner in Milton Keynes came through the website quote form using about 4,700 kWh a year. One of the two roof faces was shaded by the neighbouring roof, which decided the design.

All-black solar panels across two faces of a tiled roof in Milton Keynes

Quick facts

System size: 6.04 kWp
Panels: 13 × Aiko A465-MAH54Mb, 465 W all-black
Optimisers: 5 × Tigo TS4-A-O on the shaded face
Mounting: On-roof, K2 SingleRail 36
Inverter: Fox ESS H1-6.0-E-G2, 6 kW hybrid
Battery: Fox ESS EP6 Plus — 5.76 kWh nominal, 5.18 kWh usable
Backup: No whole-home backup
EV charger: None
Roof: Concrete tiles, two faces — 8 south-west at 33°, 5 south-east at 28°
Grid connection: G99 fast track, approved in about two weeks
Installed: May 2026
MCS estimated generation: 4,606 kWh a year
Estimated savings: £1,083 a year
Estimated payback: 7.8 years

Estimated at quote stage based on the customer’s usage and tariff at the time. Actual savings vary.

Why they got in touch

A homeowner in Milton Keynes came to us through the solar quote form on the website. The household was using roughly 4,700 kWh a year and wanted solar with storage.

What we recommended and why

The usable roof came in two parts: a larger south-west face and a smaller south-east one. The smaller face was partly shaded by the neighbouring roof, and shading is the thing that quietly ruins a solar design — on a conventional string, a shaded panel drags down the ones wired with it.

Rather than leave that face off the design, we fitted Tigo optimisers to the five panels on it. Each panel then performs on its own, so the shaded ones cost you only their own output instead of the whole string's. That let the design grow from an initial 12 panels to 13 × 465 W all-black Aiko panels across both faces, with a Fox 6 kW hybrid inverter and an EP6 Plus battery.

The install

The inverter went outside in the side alley, keeping it out of the way. The G99 application was submitted on 28 March and approved on 13 April, a little under two weeks.

The result

6.04 kWp across two faces, with the shaded face earning its keep rather than being left bare. The MCS certificate puts estimated generation at 4,606 kWh a year.

Photos from the job

Close-up of solar panel mounting rails and bird mesh along the edge of a tiled roof — Bird mesh along the array edge, and the K2 rail and hook system the panels sit on.

Thinking about solar, a battery, or both? Free survey and a fixed written price.

Get a free quote

Or call us on 01908 714446.