A 10 kWh battery fitted to a deadline in Aylesbury

The panels were already there. A homeowner in Aylesbury wanted storage behind them, and wanted it in before they went away.

An inverter and two wall-mounted battery units installed in a utility space in Aylesbury

Quick facts

System: Battery added to existing solar
Existing solar: Already on the house, not installed by us
Existing inverter: 3 kW Solis
Battery: 2 × Dyness DL5.0C Pro — 10.24 kWh nominal, 9.72 kWh usable
Battery location: Side of the house
Backup: No whole-home backup
EV charger: None
Property: House built in the 1950s–60s
Grid connection: G99, submitted and approved the same day
Installed: June 2026, in a day

Why they got in touch

A homeowner in Aylesbury already had solar on the roof, fitted by someone else, and wanted battery storage added so that the generation was not simply exported during the day.

What we recommended and why

Where there is already a working solar system, the job is to add storage without disturbing it. We specified two Dyness DL5.0C Pro units, 10.24 kWh in total, at the side of the house, working with the existing 3 kW Solis inverter. Dyness was chosen on cost-effectiveness and warranty rather than on brand.

The install

There was a date to hit — the customer was going away. The G99 was submitted and approved on the same day, 19 May, and the install was completed in a single day on 8 June, before the trip.

The result

Storage behind an array that previously had none.

“Absolutely fantastic! Thank you so much for making that happen.”
Homeowner, Aylesbury

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